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now looking up SendEvent() using GetProcAddress() so win95 

systems can run the synergy client.
This commit is contained in:
crs 2002-09-04 21:14:18 +00:00
parent 7f21588e9b
commit ecb2fbb342
1 changed files with 33 additions and 2 deletions
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33
lib/client/CMSWindowsSecondaryScreen.cpp
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@ -338,6 +338,10 @@ CMSWindowsSecondaryScreen::hideWindow()
void
CMSWindowsSecondaryScreen::warpCursor(SInt32 x, SInt32 y)
{
typedef UINT (WINAPI *SendInput_t)(UINT, LPINPUT, int);
static bool gotSendInput = false;
static SendInput_t SendInput = NULL;
// move the mouse directly to target position on NT family or if
// not using multiple monitors.
if (m_screen->isMultimon() || !m_is95Family) {
@ -362,7 +366,9 @@ CMSWindowsSecondaryScreen::warpCursor(SInt32 x, SInt32 y)
// clicking the mouse or pressing a key between the absolute and
// relative move) we'll use SendInput() which guarantees that the
// events are delivered uninterrupted. we cannot prevent changes
// to the mouse acceleration at inopportune times, though.
// to the mouse acceleration at inopportune times, though. if
// SendInput() is unavailable then use mouse_event(); SendInput()
// is not available on Windows 95 and NT 4.0 prior to SP3.
//
// point-to-activate (x-mouse) doesn't seem to be bothered by the
// absolute/relative combination. a window over the absolute
@ -371,6 +377,17 @@ CMSWindowsSecondaryScreen::warpCursor(SInt32 x, SInt32 y)
// app under the final mouse position does *not* get deactivated
// by the absolute move to 0,0.
else {
// lookup SendInput() function
if (!gotSendInput) {
gotSendInput = true;
HINSTANCE user32 = LoadLibrary("user32.dll");
if (user32 != NULL) {
SendInput = reinterpret_cast<SendInput_t>(
GetProcAddress(user32, "SendInput"));
FreeLibrary(user32);
}
}
// save mouse speed & acceleration
int oldSpeed[4];
bool accelChanged =
@ -401,8 +418,22 @@ CMSWindowsSecondaryScreen::warpCursor(SInt32 x, SInt32 y)
events[1].mi.dwFlags = MOUSEEVENTF_MOVE;
events[1].mi.time = events[0].mi.time;
events[1].mi.dwExtraInfo = 0;
if (SendInput != NULL) {
SendInput(sizeof(events) / sizeof(events[0]),
events, sizeof(events[0]));
}
else {
mouse_event(events[0].mi.dwFlags,
events[0].mi.dx,
events[0].mi.dy,
events[0].mi.mouseData,
events[0].mi.dwExtraInfo);
mouse_event(events[1].mi.dwFlags,
events[1].mi.dx,
events[1].mi.dy,
events[1].mi.mouseData,
events[1].mi.dwExtraInfo);
}
// restore mouse speed & acceleration
if (accelChanged) {