barrier/lib/platform/CMSWindowsKeyState.h

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/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2003 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.
*/
#ifndef CMSWINDOWSKEYSTATE_H
#define CMSWINDOWSKEYSTATE_H
#include "CKeyState.h"
#include "CString.h"
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
class CMSWindowsDesks;
//! Microsoft Windows key mapper
/*!
This class maps KeyIDs to keystrokes.
*/
class CMSWindowsKeyState : public CKeyState {
public:
CMSWindowsKeyState(CMSWindowsDesks* desks);
virtual ~CMSWindowsKeyState();
//! @name accessors
//@{
//! Set the active keyboard layout
/*!
Uses \p keyLayout when querying the keyboard.
*/
void setKeyLayout(HKL keyLayout);
//! Check the named virtual key for release
/*!
If \p virtualKey isn't really pressed but we think it is then
update our state and post a key release event to \p eventTarget.
*/
void fixKey(void* eventTarget, UINT virtualKey);
//! Map key event to a key
/*!
Converts a key event into a KeyID and the shadow modifier state
to a modifier mask.
*/
KeyID mapKeyFromEvent(WPARAM charAndVirtKey,
LPARAM info, KeyModifierMask* maskOut) const;
//! Map a virtual key to a button
/*!
Returns the button for the \p virtualKey.
*/
KeyButton virtualKeyToButton(UINT virtualKey) const;
//@}
// IKeyState overrides
virtual void sendKeyEvent(void* target,
bool press, bool isAutoRepeat,
KeyID key, KeyModifierMask mask,
SInt32 count, KeyButton button);
virtual bool fakeCtrlAltDel();
virtual const char* getKeyName(KeyButton) const;
protected:
// IKeyState overrides
virtual void doUpdateKeys();
virtual void doFakeKeyEvent(KeyButton button,
bool press, bool isAutoRepeat);
virtual KeyButton mapKey(Keystrokes& keys, KeyID id,
KeyModifierMask desiredMask,
bool isAutoRepeat) const;
private:
// send ctrl+alt+del hotkey event on NT family
static void ctrlAltDelThread(void*);
// convert a language ID to a code page
UINT getCodePageFromLangID(LANGID langid) const;
// map a virtual key to a button. this tries to deal with the
// broken win32 API as best it can.
KeyButton mapVirtKeyToButton(UINT virtualKey,
KeyButton& extended) const;
// same as above and discard extended
KeyButton mapVirtKeyToButton(UINT virtualKey) const;
// map character \c c given keyboard layout \c hkl to the keystrokes
// to generate it.
KeyButton mapCharacter(Keystrokes& keys,
char c, HKL hkl, bool isAutoRepeat) const;
// map \c virtualKey to the keystrokes to generate it, along with
// keystrokes to update and restore the modifier state.
KeyButton mapToKeystrokes(Keystrokes& keys, KeyButton button,
KeyModifierMask desiredMask,
KeyModifierMask requiredMask,
bool isAutoRepeat) const;
// get keystrokes to get modifiers in a desired state
bool adjustModifiers(Keystrokes& keys,
Keystrokes& undo,
KeyModifierMask desiredMask,
KeyModifierMask requiredMask) const;
// pass character to ToAsciiEx(), returning what it returns
int toAscii(TCHAR c, HKL hkl, bool menu, WORD* chars) const;
// return true iff \c c is a dead character
bool isDeadChar(TCHAR c, HKL hkl, bool menu) const;
private:
bool m_is95Family;
CMSWindowsDesks* m_desks;
HKL m_keyLayout;
CString m_keyName;
UINT m_scanCodeToVirtKey[512];
KeyButton m_virtKeyToScanCode[256];
static const char* s_vkToName[];
static const KeyID s_virtualKey[][2];
static const UINT s_mapE000[];
static const UINT s_mapEE00[];
static const UINT s_mapEF00[];
};
#endif