barrier/lib/platform/CSynergyHook.cpp

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2002-08-02 19:57:46 +00:00
/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2002 Chris Schoeneman
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "CSynergyHook.h"
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#include "ProtocolTypes.h"
#include <zmouse.h>
//
// debugging compile flag. when not zero the server doesn't grab
// the keyboard when the mouse leaves the server screen. this
// makes it possible to use the debugger (via the keyboard) when
// all user input would normally be caught by the hook procedures.
//
#define NO_GRAB_KEYBOARD 0
//
// debugging compile flag. when not zero the server will not
// install low level hooks.
//
#define NO_LOWLEVEL_HOOKS 0
//
// extra mouse wheel stuff
//
enum EWheelSupport {
kWheelNone,
kWheelOld,
kWheelWin2000,
kWheelModern
};
// declare extended mouse hook struct. useable on win2k
typedef struct tagMOUSEHOOKSTRUCTWin2000 {
MOUSEHOOKSTRUCT mhs;
DWORD mouseData;
} MOUSEHOOKSTRUCTWin2000;
#if !defined(SM_MOUSEWHEELPRESENT)
#define SM_MOUSEWHEELPRESENT 75
#endif
// X button stuff
#if !defined(WM_XBUTTONDOWN)
#define WM_XBUTTONDOWN 0x020B
#define WM_XBUTTONUP 0x020C
#define WM_XBUTTONDBLCLK 0x020D
#define WM_NCXBUTTONDOWN 0x00AB
#define WM_NCXBUTTONUP 0x00AC
#define WM_NCXBUTTONDBLCLK 0x00AD
#define MOUSEEVENTF_XDOWN 0x0080
#define MOUSEEVENTF_XUP 0x0100
#define XBUTTON1 0x0001
#define XBUTTON2 0x0002
#endif
//
// globals
//
#if defined(_MSC_VER)
#pragma comment(linker, "-section:shared,rws")
#pragma data_seg("shared")
#endif
// all data in this shared section *must* be initialized
static HINSTANCE g_hinstance = NULL;
static DWORD g_processID = 0;
static EWheelSupport g_wheelSupport = kWheelNone;
static UINT g_wmMouseWheel = 0;
static DWORD g_threadID = 0;
static HHOOK g_keyboard = NULL;
static HHOOK g_mouse = NULL;
static HHOOK g_getMessage = NULL;
static HHOOK g_keyboardLL = NULL;
static HHOOK g_mouseLL = NULL;
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static bool g_screenSaver = false;
static EHookMode g_mode = kHOOK_DISABLE;
static UInt32 g_zoneSides = 0;
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static SInt32 g_zoneSize = 0;
static SInt32 g_xScreen = 0;
static SInt32 g_yScreen = 0;
static SInt32 g_wScreen = 0;
static SInt32 g_hScreen = 0;
static WPARAM g_deadVirtKey = 0;
static LPARAM g_deadLParam = 0;
static BYTE g_deadKeyState[256] = { 0 };
static DWORD g_hookThread = 0;
static DWORD g_attachedThread = 0;
static bool g_fakeInput = false;
#if defined(_MSC_VER)
#pragma data_seg()
#endif
// keep linker quiet about floating point stuff. we don't use any
// floating point operations but our includes may define some
// (unused) floating point values.
#ifndef _DEBUG
extern "C" {
int _fltused=0;
}
#endif
//
// internal functions
//
static
void
detachThread()
{
if (g_attachedThread != 0 && g_hookThread != g_attachedThread) {
AttachThreadInput(g_hookThread, g_attachedThread, FALSE);
g_attachedThread = 0;
}
}
static
bool
attachThreadToForeground()
{
// only attach threads if using low level hooks. a low level hook
// runs in the thread that installed the hook but we have to make
// changes that require being attached to the target thread (which
// should be the foreground window). a regular hook runs in the
// thread that just removed the event from its queue so we're
// already in the right thread.
if (g_hookThread != 0) {
HWND window = GetForegroundWindow();
DWORD threadID = GetWindowThreadProcessId(window, NULL);
// skip if no change
if (g_attachedThread != threadID) {
// detach from previous thread
detachThread();
// attach to new thread
if (threadID != 0 && threadID != g_hookThread) {
AttachThreadInput(g_hookThread, threadID, TRUE);
g_attachedThread = threadID;
}
return true;
}
}
return false;
}
#if !NO_GRAB_KEYBOARD
static
WPARAM
makeKeyMsg(UINT virtKey, char c, bool noAltGr)
{
return MAKEWPARAM(MAKEWORD(virtKey & 0xff, (BYTE)c), noAltGr ? 1 : 0);
}
static
void
keyboardGetState(BYTE keys[256])
{
// we have to use GetAsyncKeyState() rather than GetKeyState() because
// we don't pass through most keys so the event synchronous state
// doesn't get updated. we do that because certain modifier keys have
// side effects, like alt and the windows key.
SHORT key;
for (int i = 0; i < 256; ++i) {
key = GetAsyncKeyState(i);
keys[i] = (BYTE)((key < 0) ? 0x80u : 0);
}
key = GetKeyState(VK_CAPITAL);
keys[VK_CAPITAL] = (BYTE)(((key < 0) ? 0x80 : 0) | (key & 1));
}
static
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
bool
doKeyboardHookHandler(WPARAM wParam, LPARAM lParam)
{
// check for special events indicating if we should start or stop
// passing events through and not report them to the server. this
// is used to allow the server to synthesize events locally but
// not pick them up as user events.
if (wParam == SYNERGY_HOOK_FAKE_INPUT_VIRTUAL_KEY &&
((lParam >> 16) & 0xffu) == SYNERGY_HOOK_FAKE_INPUT_SCANCODE) {
// update flag
g_fakeInput = ((lParam & 0x80000000u) == 0);
PostThreadMessage(g_threadID, SYNERGY_MSG_DEBUG,
0xff000000u | wParam, lParam);
// discard event
return true;
}
// if we're expecting fake input then just pass the event through
// and do not forward to the server
if (g_fakeInput) {
PostThreadMessage(g_threadID, SYNERGY_MSG_DEBUG,
0xfe000000u | wParam, lParam);
return false;
}
// VK_RSHIFT may be sent with an extended scan code but right shift
// is not an extended key so we reset that bit.
if (wParam == VK_RSHIFT) {
lParam &= ~0x01000000u;
}
// tell server about event
PostThreadMessage(g_threadID, SYNERGY_MSG_DEBUG, wParam, lParam);
// ignore dead key release
if (g_deadVirtKey == wParam &&
(lParam & 0x80000000u) != 0) {
PostThreadMessage(g_threadID, SYNERGY_MSG_DEBUG,
wParam | 0x04000000, lParam);
return false;
}
// we need the keyboard state for ToAscii()
BYTE keys[256];
keyboardGetState(keys);
// ToAscii() maps ctrl+letter to the corresponding control code
// and ctrl+backspace to delete. we don't want those translations
// so clear the control modifier state. however, if we want to
// simulate AltGr (which is ctrl+alt) then we must not clear it.
UINT control = keys[VK_CONTROL] | keys[VK_LCONTROL] | keys[VK_RCONTROL];
UINT menu = keys[VK_MENU] | keys[VK_LMENU] | keys[VK_RMENU];
if ((control & 0x80) == 0 || (menu & 0x80) == 0) {
keys[VK_LCONTROL] = 0;
keys[VK_RCONTROL] = 0;
keys[VK_CONTROL] = 0;
}
else {
keys[VK_LCONTROL] = 0x80;
keys[VK_RCONTROL] = 0x80;
keys[VK_CONTROL] = 0x80;
keys[VK_LMENU] = 0x80;
keys[VK_RMENU] = 0x80;
keys[VK_MENU] = 0x80;
}
// ToAscii() needs to know if a menu is active for some reason.
// we don't know and there doesn't appear to be any way to find
// out. so we'll just assume a menu is active if the menu key
// is down.
// FIXME -- figure out some way to check if a menu is active
UINT flags = 0;
if ((menu & 0x80) != 0)
flags |= 1;
// if we're on the server screen then just pass numpad keys with alt
// key down as-is. we won't pick up the resulting character but the
// local app will. if on a client screen then grab keys as usual;
// if the client is a windows system it'll synthesize the expected
// character. if not then it'll probably just do nothing.
if (g_mode != kHOOK_RELAY_EVENTS) {
// we don't use virtual keys because we don't know what the
// state of the numlock key is. we'll hard code the scan codes
// instead. hopefully this works across all keyboards.
UINT sc = (lParam & 0x01ff0000u) >> 16;
if (menu &&
(sc >= 0x47u && sc <= 0x52u && sc != 0x4au && sc != 0x4eu)) {
return false;
}
}
// map the key event to a character. we have to put the dead
// key back first and this has the side effect of removing it.
if (g_deadVirtKey != 0) {
WORD c = 0;
ToAscii(g_deadVirtKey, (g_deadLParam & 0x10ff0000u) >> 16,
g_deadKeyState, &c, flags);
}
WORD c = 0;
UINT scanCode = ((lParam & 0x10ff0000u) >> 16);
int n = ToAscii(wParam, scanCode, keys, &c, flags);
// if mapping failed and ctrl and alt are pressed then try again
// with both not pressed. this handles the case where ctrl and
// alt are being used as individual modifiers rather than AltGr.
// we note that's the case in the message sent back to synergy
// because there's no simple way to deduce it after the fact.
// we have to put the dead key back first, if there was one.
bool noAltGr = false;
if (n == 0 && (control & 0x80) != 0 && (menu & 0x80) != 0) {
noAltGr = true;
PostThreadMessage(g_threadID, SYNERGY_MSG_DEBUG,
wParam | 0x05000000, lParam);
if (g_deadVirtKey != 0) {
ToAscii(g_deadVirtKey, (g_deadLParam & 0x10ff0000u) >> 16,
g_deadKeyState, &c, flags);
}
BYTE keys2[256];
for (size_t i = 0; i < sizeof(keys) / sizeof(keys[0]); ++i) {
keys2[i] = keys[i];
}
keys2[VK_LCONTROL] = 0;
keys2[VK_RCONTROL] = 0;
keys2[VK_CONTROL] = 0;
keys2[VK_LMENU] = 0;
keys2[VK_RMENU] = 0;
keys2[VK_MENU] = 0;
n = ToAscii(wParam, scanCode, keys2, &c, flags);
}
PostThreadMessage(g_threadID, SYNERGY_MSG_DEBUG,
wParam | ((c & 0xff) << 8) |
((n & 0xff) << 16) | 0x06000000,
lParam);
WPARAM charAndVirtKey = 0;
bool clearDeadKey = false;
switch (n) {
default:
// key is a dead key
g_deadVirtKey = wParam;
g_deadLParam = lParam;
for (size_t i = 0; i < sizeof(keys) / sizeof(keys[0]); ++i) {
g_deadKeyState[i] = keys[i];
}
break;
case 0:
// key doesn't map to a character. this can happen if
// non-character keys are pressed after a dead key.
charAndVirtKey = makeKeyMsg(wParam, (char)0, noAltGr);
break;
case 1:
// key maps to a character composed with dead key
charAndVirtKey = makeKeyMsg(wParam, (char)LOBYTE(c), noAltGr);
clearDeadKey = true;
break;
case 2: {
// previous dead key not composed. send a fake key press
// and release for the dead key to our window.
WPARAM deadCharAndVirtKey =
makeKeyMsg(g_deadVirtKey, (char)LOBYTE(c), noAltGr);
PostThreadMessage(g_threadID, SYNERGY_MSG_KEY,
deadCharAndVirtKey, g_deadLParam & 0x7fffffffu);
PostThreadMessage(g_threadID, SYNERGY_MSG_KEY,
deadCharAndVirtKey, g_deadLParam | 0x80000000u);
// use uncomposed character
charAndVirtKey = makeKeyMsg(wParam, (char)HIBYTE(c), noAltGr);
clearDeadKey = true;
break;
}
}
// put back the dead key, if any, for the application to use
if (g_deadVirtKey != 0) {
ToAscii(g_deadVirtKey, (g_deadLParam & 0x10ff0000u) >> 16,
g_deadKeyState, &c, flags);
}
// clear out old dead key state
if (clearDeadKey) {
g_deadVirtKey = 0;
g_deadLParam = 0;
}
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// forward message to our window. do this whether or not we're
// forwarding events to clients because this'll keep our thread's
// key state table up to date. that's important for querying
// the scroll lock toggle state.
// XXX -- with hot keys for actions we may only need to do this when
// forwarding.
if (charAndVirtKey != 0) {
PostThreadMessage(g_threadID, SYNERGY_MSG_DEBUG,
charAndVirtKey | 0x07000000, lParam);
PostThreadMessage(g_threadID, SYNERGY_MSG_KEY, charAndVirtKey, lParam);
}
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
if (g_mode == kHOOK_RELAY_EVENTS) {
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// let certain keys pass through
switch (wParam) {
case VK_CAPITAL:
case VK_NUMLOCK:
case VK_SCROLL:
// pass event on. we want to let these through to
// the window proc because otherwise the keyboard
// lights may not stay synchronized.
break;
case VK_HANGUL:
// pass these modifiers if using a low level hook, discard
// them if not.
if (g_hookThread == 0) {
return true;
}
break;
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
default:
// discard
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
return true;
}
}
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
return false;
}
static
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
bool
keyboardHookHandler(WPARAM wParam, LPARAM lParam)
{
attachThreadToForeground();
return doKeyboardHookHandler(wParam, lParam);
}
#endif
static
bool
doMouseHookHandler(WPARAM wParam, SInt32 x, SInt32 y, SInt32 data)
{
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
switch (wParam) {
case WM_LBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_XBUTTONDOWN:
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
case WM_LBUTTONDBLCLK:
case WM_MBUTTONDBLCLK:
case WM_RBUTTONDBLCLK:
case WM_XBUTTONDBLCLK:
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
case WM_LBUTTONUP:
case WM_MBUTTONUP:
case WM_RBUTTONUP:
case WM_XBUTTONUP:
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
case WM_NCLBUTTONDOWN:
case WM_NCMBUTTONDOWN:
case WM_NCRBUTTONDOWN:
case WM_NCXBUTTONDOWN:
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
case WM_NCLBUTTONDBLCLK:
case WM_NCMBUTTONDBLCLK:
case WM_NCRBUTTONDBLCLK:
case WM_NCXBUTTONDBLCLK:
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
case WM_NCLBUTTONUP:
case WM_NCMBUTTONUP:
case WM_NCRBUTTONUP:
case WM_NCXBUTTONUP:
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// always relay the event. eat it if relaying.
PostThreadMessage(g_threadID, SYNERGY_MSG_MOUSE_BUTTON, wParam, data);
return (g_mode == kHOOK_RELAY_EVENTS);
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
case WM_MOUSEWHEEL:
if (g_mode == kHOOK_RELAY_EVENTS) {
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// relay event
PostThreadMessage(g_threadID, SYNERGY_MSG_MOUSE_WHEEL, data, 0);
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
}
return (g_mode == kHOOK_RELAY_EVENTS);
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
case WM_NCMOUSEMOVE:
case WM_MOUSEMOVE:
if (g_mode == kHOOK_RELAY_EVENTS) {
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// relay and eat event
PostThreadMessage(g_threadID, SYNERGY_MSG_MOUSE_MOVE, x, y);
return true;
}
else if (g_mode == kHOOK_WATCH_JUMP_ZONE) {
// low level hooks can report bogus mouse positions that are
// outside of the screen. jeez. naturally we end up getting
// fake motion in the other direction to get the position back
// on the screen, which plays havoc with switch on double tap.
// CServer deals with that. we'll clamp positions onto the
// screen. also, if we discard events for positions outside
// of the screen then the mouse appears to get a bit jerky
// near the edge. we can either accept that or pass the bogus
// events. we'll try passing the events.
bool bogus = false;
if (x < g_xScreen) {
x = g_xScreen;
bogus = true;
}
else if (x >= g_xScreen + g_wScreen) {
x = g_xScreen + g_wScreen - 1;
bogus = true;
}
if (y < g_yScreen) {
y = g_yScreen;
bogus = true;
}
else if (y >= g_yScreen + g_hScreen) {
y = g_yScreen + g_hScreen - 1;
bogus = true;
}
// check for mouse inside jump zone
bool inside = false;
2002-07-15 15:03:04 +00:00
if (!inside && (g_zoneSides & kLeftMask) != 0) {
inside = (x < g_xScreen + g_zoneSize);
}
2002-07-15 15:03:04 +00:00
if (!inside && (g_zoneSides & kRightMask) != 0) {
inside = (x >= g_xScreen + g_wScreen - g_zoneSize);
}
2002-07-15 15:03:04 +00:00
if (!inside && (g_zoneSides & kTopMask) != 0) {
inside = (y < g_yScreen + g_zoneSize);
}
2002-07-15 15:03:04 +00:00
if (!inside && (g_zoneSides & kBottomMask) != 0) {
inside = (y >= g_yScreen + g_hScreen - g_zoneSize);
}
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// relay the event
PostThreadMessage(g_threadID, SYNERGY_MSG_MOUSE_MOVE, x, y);
// if inside and not bogus then eat the event
return inside && !bogus;
}
}
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// pass the event
return false;
}
static
bool
mouseHookHandler(WPARAM wParam, SInt32 x, SInt32 y, SInt32 data)
{
// attachThreadToForeground();
return doMouseHookHandler(wParam, x, y, data);
}
#if !NO_GRAB_KEYBOARD
static
LRESULT CALLBACK
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
keyboardHook(int code, WPARAM wParam, LPARAM lParam)
{
if (code >= 0) {
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// handle the message
if (keyboardHookHandler(wParam, lParam)) {
return 1;
}
}
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
return CallNextHookEx(g_keyboard, code, wParam, lParam);
}
#endif
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
static
LRESULT CALLBACK
mouseHook(int code, WPARAM wParam, LPARAM lParam)
{
if (code >= 0) {
// decode message
const MOUSEHOOKSTRUCT* info = (const MOUSEHOOKSTRUCT*)lParam;
SInt32 x = (SInt32)info->pt.x;
SInt32 y = (SInt32)info->pt.y;
SInt32 w = 0;
if (wParam == WM_MOUSEWHEEL) {
// win2k and other systems supporting WM_MOUSEWHEEL in
// the mouse hook are gratuitously different (and poorly
// documented). if a low-level mouse hook is in place
// it should capture these events so we'll never see
// them.
switch (g_wheelSupport) {
case kWheelModern:
w = static_cast<SInt16>(LOWORD(info->dwExtraInfo));
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
break;
case kWheelWin2000: {
const MOUSEHOOKSTRUCTWin2000* info2k =
(const MOUSEHOOKSTRUCTWin2000*)lParam;
w = static_cast<SInt16>(HIWORD(info2k->mouseData));
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
break;
}
default:
break;
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
}
}
// handle the message. note that we don't handle X buttons
// here. that's okay because they're only supported on
// win2k and winxp and up and on those platforms we'll get
// get the mouse events through the low level hook.
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
if (mouseHookHandler(wParam, x, y, w)) {
return 1;
}
}
return CallNextHookEx(g_mouse, code, wParam, lParam);
}
static
LRESULT CALLBACK
2002-06-17 13:31:21 +00:00
getMessageHook(int code, WPARAM wParam, LPARAM lParam)
{
if (code >= 0) {
2002-06-23 21:53:31 +00:00
if (g_screenSaver) {
MSG* msg = reinterpret_cast<MSG*>(lParam);
2003-03-16 17:40:47 +00:00
if (msg->message == WM_SYSCOMMAND &&
msg->wParam == SC_SCREENSAVE) {
2002-06-23 21:53:31 +00:00
// broadcast screen saver started message
PostThreadMessage(g_threadID,
SYNERGY_MSG_SCREEN_SAVER, TRUE, 0);
}
}
if (g_mode == kHOOK_RELAY_EVENTS) {
MSG* msg = reinterpret_cast<MSG*>(lParam);
if (g_wheelSupport == kWheelOld && msg->message == g_wmMouseWheel) {
// post message to our window
PostThreadMessage(g_threadID,
SYNERGY_MSG_MOUSE_WHEEL,
static_cast<SInt16>(msg->wParam & 0xffffu), 0);
// zero out the delta in the message so it's (hopefully)
// ignored
msg->wParam = 0;
}
}
}
return CallNextHookEx(g_getMessage, code, wParam, lParam);
}
#if (_WIN32_WINNT >= 0x0400) && defined(_MSC_VER) && !NO_LOWLEVEL_HOOKS
//
// low-level keyboard hook -- this allows us to capture and handle
// alt+tab, alt+esc, ctrl+esc, and windows key hot keys. on the down
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// side, key repeats are not reported to us.
//
#if !NO_GRAB_KEYBOARD
static
LRESULT CALLBACK
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keyboardLLHook(int code, WPARAM wParam, LPARAM lParam)
{
if (code >= 0) {
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// decode the message
KBDLLHOOKSTRUCT* info = reinterpret_cast<KBDLLHOOKSTRUCT*>(lParam);
WPARAM wParam = info->vkCode;
LPARAM lParam = 1; // repeat code
lParam |= (info->scanCode << 16); // scan code
if (info->flags & LLKHF_EXTENDED) {
lParam |= (1lu << 24); // extended key
}
if (info->flags & LLKHF_ALTDOWN) {
lParam |= (1lu << 29); // context code
}
if (info->flags & LLKHF_UP) {
lParam |= (1lu << 31); // transition
}
// FIXME -- bit 30 should be set if key was already down but
// we don't know that info. as a result we'll never generate
// key repeat events.
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// handle the message
if (keyboardHookHandler(wParam, lParam)) {
return 1;
}
}
return CallNextHookEx(g_keyboardLL, code, wParam, lParam);
}
#endif
//
// low-level mouse hook -- this allows us to capture and handle mouse
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// events very early. the earlier the better.
//
static
LRESULT CALLBACK
mouseLLHook(int code, WPARAM wParam, LPARAM lParam)
{
if (code >= 0) {
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// decode the message
MSLLHOOKSTRUCT* info = reinterpret_cast<MSLLHOOKSTRUCT*>(lParam);
SInt32 x = static_cast<SInt32>(info->pt.x);
SInt32 y = static_cast<SInt32>(info->pt.y);
SInt32 w = static_cast<SInt16>(HIWORD(info->mouseData));
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// handle the message
if (mouseHookHandler(wParam, x, y, w)) {
return 1;
}
}
return CallNextHookEx(g_mouseLL, code, wParam, lParam);
}
#endif
static
EWheelSupport
getWheelSupport()
{
// get operating system
OSVERSIONINFO info;
info.dwOSVersionInfoSize = sizeof(info);
if (!GetVersionEx(&info)) {
return kWheelNone;
}
// see if modern wheel is present
if (GetSystemMetrics(SM_MOUSEWHEELPRESENT)) {
// note if running on win2k
if (info.dwPlatformId == VER_PLATFORM_WIN32_NT &&
info.dwMajorVersion == 5 &&
info.dwMinorVersion == 0) {
return kWheelWin2000;
}
return kWheelModern;
}
// not modern. see if we've got old-style support.
#if defined(MSH_WHEELSUPPORT)
UINT wheelSupportMsg = RegisterWindowMessage(MSH_WHEELSUPPORT);
HWND wheelSupportWindow = FindWindow(MSH_WHEELMODULE_CLASS,
MSH_WHEELMODULE_TITLE);
if (wheelSupportWindow != NULL && wheelSupportMsg != 0) {
if (SendMessage(wheelSupportWindow, wheelSupportMsg, 0, 0) != 0) {
g_wmMouseWheel = RegisterWindowMessage(MSH_MOUSEWHEEL);
if (g_wmMouseWheel != 0) {
return kWheelOld;
}
}
}
#endif
// assume modern. we don't do anything special in this case
// except respond to WM_MOUSEWHEEL messages. GetSystemMetrics()
// can apparently return FALSE even if a mouse wheel is present
// though i'm not sure exactly when it does that (WinME returns
// FALSE for my logitech USB trackball).
return kWheelModern;
}
//
// external functions
//
BOOL WINAPI
2002-06-17 13:31:21 +00:00
DllMain(HINSTANCE instance, DWORD reason, LPVOID)
{
if (reason == DLL_PROCESS_ATTACH) {
DisableThreadLibraryCalls(instance);
if (g_processID == 0) {
g_hinstance = instance;
g_processID = GetCurrentProcessId();
}
}
else if (reason == DLL_PROCESS_DETACH) {
if (g_processID == GetCurrentProcessId()) {
uninstall();
uninstallScreenSaver();
g_processID = 0;
g_hinstance = NULL;
}
}
return TRUE;
}
extern "C" {
int
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init(DWORD threadID)
{
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assert(g_hinstance != NULL);
// try to open process that last called init() to see if it's
// still running or if it died without cleaning up.
if (g_processID != 0 && g_processID != GetCurrentProcessId()) {
HANDLE process = OpenProcess(STANDARD_RIGHTS_REQUIRED,
FALSE, g_processID);
if (process != NULL) {
// old process (probably) still exists so refuse to
// reinitialize this DLL (and thus steal it from the
// old process).
CloseHandle(process);
return 0;
}
// clean up after old process. the system should've already
// removed the hooks so we just need to reset our state.
g_hinstance = GetModuleHandle("synrgyhk");
g_processID = GetCurrentProcessId();
g_wheelSupport = kWheelNone;
g_threadID = 0;
g_keyboard = NULL;
g_mouse = NULL;
g_getMessage = NULL;
g_keyboardLL = NULL;
g_mouseLL = NULL;
g_screenSaver = false;
2002-06-23 21:53:31 +00:00
}
// save thread id. we'll post messages to this thread's
// message queue.
g_threadID = threadID;
2002-07-15 15:03:04 +00:00
// set defaults
g_mode = kHOOK_DISABLE;
g_zoneSides = 0;
g_zoneSize = 0;
g_xScreen = 0;
g_yScreen = 0;
g_wScreen = 0;
g_hScreen = 0;
2002-07-15 15:03:04 +00:00
2002-06-23 21:53:31 +00:00
return 1;
}
int
cleanup(void)
{
assert(g_hinstance != NULL);
if (g_processID == GetCurrentProcessId()) {
g_threadID = 0;
}
2002-06-23 21:53:31 +00:00
return 1;
}
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
EHookResult
2002-06-23 21:53:31 +00:00
install()
{
assert(g_hinstance != NULL);
assert(g_keyboard == NULL);
assert(g_mouse == NULL);
assert(g_getMessage == NULL || g_screenSaver);
// must be initialized
if (g_threadID == 0) {
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
return kHOOK_FAILED;
2002-06-23 21:53:31 +00:00
}
// discard old dead keys
g_deadVirtKey = 0;
g_deadLParam = 0;
// reset fake input flag
g_fakeInput = false;
// check for mouse wheel support
g_wheelSupport = getWheelSupport();
2002-06-23 21:53:31 +00:00
// install GetMessage hook (unless already installed)
if (g_wheelSupport == kWheelOld && g_getMessage == NULL) {
g_getMessage = SetWindowsHookEx(WH_GETMESSAGE,
&getMessageHook,
g_hinstance,
0);
}
// install low-level hooks. we require that they both get installed.
#if (_WIN32_WINNT >= 0x0400) && defined(_MSC_VER) && !NO_LOWLEVEL_HOOKS
g_mouseLL = SetWindowsHookEx(WH_MOUSE_LL,
&mouseLLHook,
g_hinstance,
0);
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
#if !NO_GRAB_KEYBOARD
g_keyboardLL = SetWindowsHookEx(WH_KEYBOARD_LL,
&keyboardLLHook,
g_hinstance,
0);
if (g_mouseLL == NULL || g_keyboardLL == NULL) {
if (g_keyboardLL != NULL) {
UnhookWindowsHookEx(g_keyboardLL);
g_keyboardLL = NULL;
}
if (g_mouseLL != NULL) {
UnhookWindowsHookEx(g_mouseLL);
g_mouseLL = NULL;
}
}
#endif
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
#endif
// install regular hooks
if (g_mouseLL == NULL) {
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
g_mouse = SetWindowsHookEx(WH_MOUSE,
&mouseHook,
g_hinstance,
0);
}
#if !NO_GRAB_KEYBOARD
if (g_keyboardLL == NULL) {
g_keyboard = SetWindowsHookEx(WH_KEYBOARD,
&keyboardHook,
g_hinstance,
0);
}
#endif
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// check that we got all the hooks we wanted
if ((g_getMessage == NULL && g_wheelSupport == kWheelOld) ||
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
#if !NO_GRAB_KEYBOARD
(g_keyboardLL == NULL && g_keyboard == NULL) ||
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
#endif
(g_mouseLL == NULL && g_mouse == NULL)) {
uninstall();
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
return kHOOK_FAILED;
}
if (g_keyboardLL != NULL || g_mouseLL != NULL) {
g_hookThread = GetCurrentThreadId();
return kHOOK_OKAY_LL;
}
return kHOOK_OKAY;
}
int
2002-06-17 13:31:21 +00:00
uninstall(void)
{
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assert(g_hinstance != NULL);
// discard old dead keys
g_deadVirtKey = 0;
g_deadLParam = 0;
// detach from thread
detachThread();
// uninstall hooks
if (g_keyboardLL != NULL) {
UnhookWindowsHookEx(g_keyboardLL);
g_keyboardLL = NULL;
}
if (g_mouseLL != NULL) {
UnhookWindowsHookEx(g_mouseLL);
g_mouseLL = NULL;
}
2002-06-23 21:53:31 +00:00
if (g_keyboard != NULL) {
UnhookWindowsHookEx(g_keyboard);
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
g_keyboard = NULL;
2002-06-23 21:53:31 +00:00
}
if (g_mouse != NULL) {
UnhookWindowsHookEx(g_mouse);
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
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g_mouse = NULL;
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}
if (g_getMessage != NULL && !g_screenSaver) {
UnhookWindowsHookEx(g_getMessage);
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g_getMessage = NULL;
}
g_wheelSupport = kWheelNone;
return 1;
}
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int
installScreenSaver(void)
{
assert(g_hinstance != NULL);
// must be initialized
if (g_threadID == 0) {
return 0;
}
// generate screen saver messages
g_screenSaver = true;
// install hook unless it's already installed
if (g_getMessage == NULL) {
g_getMessage = SetWindowsHookEx(WH_GETMESSAGE,
&getMessageHook,
g_hinstance,
0);
}
return (g_getMessage != NULL) ? 1 : 0;
}
int
uninstallScreenSaver(void)
{
assert(g_hinstance != NULL);
// uninstall hook unless the mouse wheel hook is installed
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if (g_getMessage != NULL && g_wheelSupport != kWheelOld) {
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UnhookWindowsHookEx(g_getMessage);
g_getMessage = NULL;
}
// screen saver hook is no longer installed
g_screenSaver = false;
return 1;
}
void
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setSides(UInt32 sides)
{
g_zoneSides = sides;
}
void
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setZone(SInt32 x, SInt32 y, SInt32 w, SInt32 h, SInt32 jumpZoneSize)
{
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g_zoneSize = jumpZoneSize;
g_xScreen = x;
g_yScreen = y;
g_wScreen = w;
g_hScreen = h;
}
void
setMode(EHookMode mode)
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{
if (mode == g_mode) {
Fixed a few win32 keyboard/mouse problems. First, the mouse hook now captures non-client area mouse messages. Previously, these were ignored (because i forgot about them) and they caused all kinds of problems because they weren't forwarded. For example, clicking on a window border would cause the window to start resizing when the mouse came back to the server screen. Moving inside a title bar meant that the mouse wouldn't move on the client screen. Second, because non-client messages are now handled, the full screen transparent window is no longer necessary to capture input so it's never displayed. (The window is still necessary for clipboard ownership so it's still created.) No transparent window means no screen flashing. It also means we don't have to become the foreground and active window. This plays better with apps that minimize or restore when they're no longer the foreground application/active window. Third, fixed the low level keyboard hook to forward toggle key updates, which it was neglecting to do. Finally, keyboard and mouse input is always forwarded from the hook to the primary screen handler which then shadows the current key and mouse button state. If we're using low level hooks then this isn't really necessary and GetKeyState() always returns the right info but without low level hooks it means we can just use the shadow state. It also means we don't have to show our window in order to get the system's key state table up to date, fixing the screen flash when checking for the scroll lock state.
2003-05-03 12:54:22 +00:00
// no change
return;
}
g_mode = mode;
}
}