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barrier/lib/platform/CMSWindowsKeyState.cpp
crs b1ead05a3c Worked around bogus key mapping on 95/98/me where multiple virtual 
keys are mapped to the same button.  For example, the backslash
virtual key shares a button with some other virtual key on british
english key mappings.  Synergy could end up using the wrong virtual
key.  In the given case, the other virtual key produced no character
at all.  To determine which virtual key should really be mapped to
a button we map the button back to a virtual key and see if it's the
virtual key we started with.

Also fixed mapping of pause key.  Previously, windows+pause sent to
a win32 client wouldn't bring up system properties like it should.
2004-07-29 21:53:30 +00:00

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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.
*/
#include "CMSWindowsKeyState.h"
#include "CMSWindowsDesks.h"
#include "CThread.h"
#include "CFunctionJob.h"
#include "CLog.h"
#include "CStringUtil.h"
#include "CArchMiscWindows.h"
// extended mouse buttons
#if !defined(VK_XBUTTON1)
#define VK_XBUTTON1 0x05
#define VK_XBUTTON2 0x06
#endif
// multimedia keys
#if !defined(VK_BROWSER_BACK)
#define VK_BROWSER_BACK 0xA6
#define VK_BROWSER_FORWARD 0xA7
#define VK_BROWSER_REFRESH 0xA8
#define VK_BROWSER_STOP 0xA9
#define VK_BROWSER_SEARCH 0xAA
#define VK_BROWSER_FAVORITES 0xAB
#define VK_BROWSER_HOME 0xAC
#define VK_VOLUME_MUTE 0xAD
#define VK_VOLUME_DOWN 0xAE
#define VK_VOLUME_UP 0xAF
#define VK_MEDIA_NEXT_TRACK 0xB0
#define VK_MEDIA_PREV_TRACK 0xB1
#define VK_MEDIA_STOP 0xB2
#define VK_MEDIA_PLAY_PAUSE 0xB3
#define VK_LAUNCH_MAIL 0xB4
#define VK_LAUNCH_MEDIA_SELECT 0xB5
#define VK_LAUNCH_APP1 0xB6
#define VK_LAUNCH_APP2 0xB7
#endif
//
// CMSWindowsKeyState
//
const char* CMSWindowsKeyState::s_vkToName[] =
{
"vk 0x00",
"Left Button",
"Right Button",
"VK_CANCEL",
"Middle Button",
"vk 0x05",
"vk 0x06",
"vk 0x07",
"VK_BACK",
"VK_TAB",
"vk 0x0a",
"vk 0x0b",
"VK_CLEAR",
"VK_RETURN",
"vk 0x0e",
"vk 0x0f",
"VK_SHIFT",
"VK_CONTROL",
"VK_MENU",
"VK_PAUSE",
"VK_CAPITAL",
"VK_KANA",
"vk 0x16",
"VK_JUNJA",
"VK_FINAL",
"VK_KANJI",
"vk 0x1a",
"VK_ESCAPE",
"VK_CONVERT",
"VK_NONCONVERT",
"VK_ACCEPT",
"VK_MODECHANGE",
"VK_SPACE",
"VK_PRIOR",
"VK_NEXT",
"VK_END",
"VK_HOME",
"VK_LEFT",
"VK_UP",
"VK_RIGHT",
"VK_DOWN",
"VK_SELECT",
"VK_PRINT",
"VK_EXECUTE",
"VK_SNAPSHOT",
"VK_INSERT",
"VK_DELETE",
"VK_HELP",
"VK_0",
"VK_1",
"VK_2",
"VK_3",
"VK_4",
"VK_5",
"VK_6",
"VK_7",
"VK_8",
"VK_9",
"vk 0x3a",
"vk 0x3b",
"vk 0x3c",
"vk 0x3d",
"vk 0x3e",
"vk 0x3f",
"vk 0x40",
"VK_A",
"VK_B",
"VK_C",
"VK_D",
"VK_E",
"VK_F",
"VK_G",
"VK_H",
"VK_I",
"VK_J",
"VK_K",
"VK_L",
"VK_M",
"VK_N",
"VK_O",
"VK_P",
"VK_Q",
"VK_R",
"VK_S",
"VK_T",
"VK_U",
"VK_V",
"VK_W",
"VK_X",
"VK_Y",
"VK_Z",
"VK_LWIN",
"VK_RWIN",
"VK_APPS",
"vk 0x5e",
"vk 0x5f",
"VK_NUMPAD0",
"VK_NUMPAD1",
"VK_NUMPAD2",
"VK_NUMPAD3",
"VK_NUMPAD4",
"VK_NUMPAD5",
"VK_NUMPAD6",
"VK_NUMPAD7",
"VK_NUMPAD8",
"VK_NUMPAD9",
"VK_MULTIPLY",
"VK_ADD",
"VK_SEPARATOR",
"VK_SUBTRACT",
"VK_DECIMAL",
"VK_DIVIDE",
"VK_F1",
"VK_F2",
"VK_F3",
"VK_F4",
"VK_F5",
"VK_F6",
"VK_F7",
"VK_F8",
"VK_F9",
"VK_F10",
"VK_F11",
"VK_F12",
"VK_F13",
"VK_F14",
"VK_F15",
"VK_F16",
"VK_F17",
"VK_F18",
"VK_F19",
"VK_F20",
"VK_F21",
"VK_F22",
"VK_F23",
"VK_F24",
"vk 0x88",
"vk 0x89",
"vk 0x8a",
"vk 0x8b",
"vk 0x8c",
"vk 0x8d",
"vk 0x8e",
"vk 0x8f",
"VK_NUMLOCK",
"VK_SCROLL",
"vk 0x92",
"vk 0x93",
"vk 0x94",
"vk 0x95",
"vk 0x96",
"vk 0x97",
"vk 0x98",
"vk 0x99",
"vk 0x9a",
"vk 0x9b",
"vk 0x9c",
"vk 0x9d",
"vk 0x9e",
"vk 0x9f",
"VK_LSHIFT",
"VK_RSHIFT",
"VK_LCONTROL",
"VK_RCONTROL",
"VK_LMENU",
"VK_RMENU",
"VK_BROWSER_BACK",
"VK_BROWSER_FORWARD",
"VK_BROWSER_REFRESH",
"VK_BROWSER_STOP",
"VK_BROWSER_SEARCH",
"VK_BROWSER_FAVORITES",
"VK_BROWSER_HOME",
"VK_VOLUME_MUTE",
"VK_VOLUME_DOWN",
"VK_VOLUME_UP",
"VK_MEDIA_NEXT_TRACK",
"VK_MEDIA_PREV_TRACK",
"VK_MEDIA_STOP",
"VK_MEDIA_PLAY_PAUSE",
"VK_LAUNCH_MAIL",
"VK_LAUNCH_MEDIA_SELECT",
"VK_LAUNCH_APP1",
"VK_LAUNCH_APP2",
"vk 0xb8",
"vk 0xb9",
"vk 0xba",
"vk 0xbb",
"vk 0xbc",
"vk 0xbd",
"vk 0xbe",
"vk 0xbf",
"vk 0xc0",
"vk 0xc1",
"vk 0xc2",
"vk 0xc3",
"vk 0xc4",
"vk 0xc5",
"vk 0xc6",
"vk 0xc7",
"vk 0xc8",
"vk 0xc9",
"vk 0xca",
"vk 0xcb",
"vk 0xcc",
"vk 0xcd",
"vk 0xce",
"vk 0xcf",
"vk 0xd0",
"vk 0xd1",
"vk 0xd2",
"vk 0xd3",
"vk 0xd4",
"vk 0xd5",
"vk 0xd6",
"vk 0xd7",
"vk 0xd8",
"vk 0xd9",
"vk 0xda",
"vk 0xdb",
"vk 0xdc",
"vk 0xdd",
"vk 0xde",
"vk 0xdf",
"vk 0xe0",
"vk 0xe1",
"vk 0xe2",
"vk 0xe3",
"vk 0xe4",
"VK_PROCESSKEY",
"vk 0xe6",
"vk 0xe7",
"vk 0xe8",
"vk 0xe9",
"vk 0xea",
"vk 0xeb",
"vk 0xec",
"vk 0xed",
"vk 0xee",
"vk 0xef",
"vk 0xf0",
"vk 0xf1",
"vk 0xf2",
"vk 0xf3",
"vk 0xf4",
"vk 0xf5",
"VK_ATTN",
"VK_CRSEL",
"VK_EXSEL",
"VK_EREOF",
"VK_PLAY",
"VK_ZOOM",
"VK_NONAME",
"VK_PA1",
"VK_OEM_CLEAR",
"vk 0xff"
};
// map virtual keys to synergy key enumeration
const KeyID CMSWindowsKeyState::s_virtualKey[][2] =
{
/* 0x00 */ { kKeyNone, kKeyNone }, // reserved
/* 0x01 */ { kKeyNone, kKeyNone }, // VK_LBUTTON
/* 0x02 */ { kKeyNone, kKeyNone }, // VK_RBUTTON
/* 0x03 */ { kKeyNone, kKeyBreak }, // VK_CANCEL
/* 0x04 */ { kKeyNone, kKeyNone }, // VK_MBUTTON
/* 0x05 */ { kKeyNone, kKeyNone }, // undefined
/* 0x06 */ { kKeyNone, kKeyNone }, // undefined
/* 0x07 */ { kKeyNone, kKeyNone }, // undefined
/* 0x08 */ { kKeyBackSpace, kKeyNone }, // VK_BACK
/* 0x09 */ { kKeyTab, kKeyNone }, // VK_TAB
/* 0x0a */ { kKeyNone, kKeyNone }, // undefined
/* 0x0b */ { kKeyNone, kKeyNone }, // undefined
/* 0x0c */ { kKeyClear, kKeyClear }, // VK_CLEAR
/* 0x0d */ { kKeyReturn, kKeyKP_Enter }, // VK_RETURN
/* 0x0e */ { kKeyNone, kKeyNone }, // undefined
/* 0x0f */ { kKeyNone, kKeyNone }, // undefined
/* 0x10 */ { kKeyShift_L, kKeyShift_R }, // VK_SHIFT
/* 0x11 */ { kKeyControl_L, kKeyControl_R },// VK_CONTROL
/* 0x12 */ { kKeyAlt_L, kKeyAlt_R }, // VK_MENU
/* 0x13 */ { kKeyPause, kKeyNone }, // VK_PAUSE
/* 0x14 */ { kKeyCapsLock, kKeyNone }, // VK_CAPITAL
/* 0x15 */ { kKeyNone, kKeyNone }, // VK_KANA
/* 0x16 */ { kKeyNone, kKeyNone }, // VK_HANGUL
/* 0x17 */ { kKeyNone, kKeyNone }, // VK_JUNJA
/* 0x18 */ { kKeyNone, kKeyNone }, // VK_FINAL
/* 0x19 */ { kKeyZenkaku, kKeyNone }, // VK_KANJI
/* 0x1a */ { kKeyNone, kKeyNone }, // undefined
/* 0x1b */ { kKeyEscape, kKeyNone }, // VK_ESCAPE
/* 0x1c */ { kKeyNone, kKeyNone }, // VK_CONVERT
/* 0x1d */ { kKeyNone, kKeyNone }, // VK_NONCONVERT
/* 0x1e */ { kKeyNone, kKeyNone }, // VK_ACCEPT
/* 0x1f */ { kKeyNone, kKeyNone }, // VK_MODECHANGE
/* 0x20 */ { kKeyNone, kKeyNone }, // VK_SPACE
/* 0x21 */ { kKeyKP_PageUp, kKeyPageUp }, // VK_PRIOR
/* 0x22 */ { kKeyKP_PageDown, kKeyPageDown }, // VK_NEXT
/* 0x23 */ { kKeyKP_End, kKeyEnd }, // VK_END
/* 0x24 */ { kKeyKP_Home, kKeyHome }, // VK_HOME
/* 0x25 */ { kKeyKP_Left, kKeyLeft }, // VK_LEFT
/* 0x26 */ { kKeyKP_Up, kKeyUp }, // VK_UP
/* 0x27 */ { kKeyKP_Right, kKeyRight }, // VK_RIGHT
/* 0x28 */ { kKeyKP_Down, kKeyDown }, // VK_DOWN
/* 0x29 */ { kKeySelect, kKeySelect }, // VK_SELECT
/* 0x2a */ { kKeyNone, kKeyNone }, // VK_PRINT
/* 0x2b */ { kKeyExecute, kKeyExecute }, // VK_EXECUTE
/* 0x2c */ { kKeyPrint, kKeyPrint }, // VK_SNAPSHOT
/* 0x2d */ { kKeyKP_Insert, kKeyInsert }, // VK_INSERT
/* 0x2e */ { kKeyKP_Delete, kKeyDelete }, // VK_DELETE
/* 0x2f */ { kKeyHelp, kKeyHelp }, // VK_HELP
/* 0x30 */ { kKeyNone, kKeyNone }, // VK_0
/* 0x31 */ { kKeyNone, kKeyNone }, // VK_1
/* 0x32 */ { kKeyNone, kKeyNone }, // VK_2
/* 0x33 */ { kKeyNone, kKeyNone }, // VK_3
/* 0x34 */ { kKeyNone, kKeyNone }, // VK_4
/* 0x35 */ { kKeyNone, kKeyNone }, // VK_5
/* 0x36 */ { kKeyNone, kKeyNone }, // VK_6
/* 0x37 */ { kKeyNone, kKeyNone }, // VK_7
/* 0x38 */ { kKeyNone, kKeyNone }, // VK_8
/* 0x39 */ { kKeyNone, kKeyNone }, // VK_9
/* 0x3a */ { kKeyNone, kKeyNone }, // undefined
/* 0x3b */ { kKeyNone, kKeyNone }, // undefined
/* 0x3c */ { kKeyNone, kKeyNone }, // undefined
/* 0x3d */ { kKeyNone, kKeyNone }, // undefined
/* 0x3e */ { kKeyNone, kKeyNone }, // undefined
/* 0x3f */ { kKeyNone, kKeyNone }, // undefined
/* 0x40 */ { kKeyNone, kKeyNone }, // undefined
/* 0x41 */ { kKeyNone, kKeyNone }, // VK_A
/* 0x42 */ { kKeyNone, kKeyNone }, // VK_B
/* 0x43 */ { kKeyNone, kKeyNone }, // VK_C
/* 0x44 */ { kKeyNone, kKeyNone }, // VK_D
/* 0x45 */ { kKeyNone, kKeyNone }, // VK_E
/* 0x46 */ { kKeyNone, kKeyNone }, // VK_F
/* 0x47 */ { kKeyNone, kKeyNone }, // VK_G
/* 0x48 */ { kKeyNone, kKeyNone }, // VK_H
/* 0x49 */ { kKeyNone, kKeyNone }, // VK_I
/* 0x4a */ { kKeyNone, kKeyNone }, // VK_J
/* 0x4b */ { kKeyNone, kKeyNone }, // VK_K
/* 0x4c */ { kKeyNone, kKeyNone }, // VK_L
/* 0x4d */ { kKeyNone, kKeyNone }, // VK_M
/* 0x4e */ { kKeyNone, kKeyNone }, // VK_N
/* 0x4f */ { kKeyNone, kKeyNone }, // VK_O
/* 0x50 */ { kKeyNone, kKeyNone }, // VK_P
/* 0x51 */ { kKeyNone, kKeyNone }, // VK_Q
/* 0x52 */ { kKeyNone, kKeyNone }, // VK_R
/* 0x53 */ { kKeyNone, kKeyNone }, // VK_S
/* 0x54 */ { kKeyNone, kKeyNone }, // VK_T
/* 0x55 */ { kKeyNone, kKeyNone }, // VK_U
/* 0x56 */ { kKeyNone, kKeyNone }, // VK_V
/* 0x57 */ { kKeyNone, kKeyNone }, // VK_W
/* 0x58 */ { kKeyNone, kKeyNone }, // VK_X
/* 0x59 */ { kKeyNone, kKeyNone }, // VK_Y
/* 0x5a */ { kKeyNone, kKeyNone }, // VK_Z
/* 0x5b */ { kKeyNone, kKeySuper_L }, // VK_LWIN
/* 0x5c */ { kKeyNone, kKeySuper_R }, // VK_RWIN
/* 0x5d */ { kKeyMenu, kKeyMenu }, // VK_APPS
/* 0x5e */ { kKeyNone, kKeyNone }, // undefined
/* 0x5f */ { kKeyNone, kKeyNone }, // undefined
/* 0x60 */ { kKeyKP_0, kKeyNone }, // VK_NUMPAD0
/* 0x61 */ { kKeyKP_1, kKeyNone }, // VK_NUMPAD1
/* 0x62 */ { kKeyKP_2, kKeyNone }, // VK_NUMPAD2
/* 0x63 */ { kKeyKP_3, kKeyNone }, // VK_NUMPAD3
/* 0x64 */ { kKeyKP_4, kKeyNone }, // VK_NUMPAD4
/* 0x65 */ { kKeyKP_5, kKeyNone }, // VK_NUMPAD5
/* 0x66 */ { kKeyKP_6, kKeyNone }, // VK_NUMPAD6
/* 0x67 */ { kKeyKP_7, kKeyNone }, // VK_NUMPAD7
/* 0x68 */ { kKeyKP_8, kKeyNone }, // VK_NUMPAD8
/* 0x69 */ { kKeyKP_9, kKeyNone }, // VK_NUMPAD9
/* 0x6a */ { kKeyKP_Multiply, kKeyNone }, // VK_MULTIPLY
/* 0x6b */ { kKeyKP_Add, kKeyNone }, // VK_ADD
/* 0x6c */ { kKeyKP_Separator, kKeyKP_Separator },// VK_SEPARATOR
/* 0x6d */ { kKeyKP_Subtract, kKeyNone }, // VK_SUBTRACT
/* 0x6e */ { kKeyKP_Decimal, kKeyNone }, // VK_DECIMAL
/* 0x6f */ { kKeyNone, kKeyKP_Divide },// VK_DIVIDE
/* 0x70 */ { kKeyF1, kKeyNone }, // VK_F1
/* 0x71 */ { kKeyF2, kKeyNone }, // VK_F2
/* 0x72 */ { kKeyF3, kKeyNone }, // VK_F3
/* 0x73 */ { kKeyF4, kKeyNone }, // VK_F4
/* 0x74 */ { kKeyF5, kKeyNone }, // VK_F5
/* 0x75 */ { kKeyF6, kKeyNone }, // VK_F6
/* 0x76 */ { kKeyF7, kKeyNone }, // VK_F7
/* 0x77 */ { kKeyF8, kKeyNone }, // VK_F8
/* 0x78 */ { kKeyF9, kKeyNone }, // VK_F9
/* 0x79 */ { kKeyF10, kKeyNone }, // VK_F10
/* 0x7a */ { kKeyF11, kKeyNone }, // VK_F11
/* 0x7b */ { kKeyF12, kKeyNone }, // VK_F12
/* 0x7c */ { kKeyF13, kKeyF13 }, // VK_F13
/* 0x7d */ { kKeyF14, kKeyF14 }, // VK_F14
/* 0x7e */ { kKeyF15, kKeyF15 }, // VK_F15
/* 0x7f */ { kKeyF16, kKeyF16 }, // VK_F16
/* 0x80 */ { kKeyF17, kKeyF17 }, // VK_F17
/* 0x81 */ { kKeyF18, kKeyF18 }, // VK_F18
/* 0x82 */ { kKeyF19, kKeyF19 }, // VK_F19
/* 0x83 */ { kKeyF20, kKeyF20 }, // VK_F20
/* 0x84 */ { kKeyF21, kKeyF21 }, // VK_F21
/* 0x85 */ { kKeyF22, kKeyF22 }, // VK_F22
/* 0x86 */ { kKeyF23, kKeyF23 }, // VK_F23
/* 0x87 */ { kKeyF24, kKeyF24 }, // VK_F24
/* 0x88 */ { kKeyNone, kKeyNone }, // unassigned
/* 0x89 */ { kKeyNone, kKeyNone }, // unassigned
/* 0x8a */ { kKeyNone, kKeyNone }, // unassigned
/* 0x8b */ { kKeyNone, kKeyNone }, // unassigned
/* 0x8c */ { kKeyNone, kKeyNone }, // unassigned
/* 0x8d */ { kKeyNone, kKeyNone }, // unassigned
/* 0x8e */ { kKeyNone, kKeyNone }, // unassigned
/* 0x8f */ { kKeyNone, kKeyNone }, // unassigned
/* 0x90 */ { kKeyNumLock, kKeyNumLock }, // VK_NUMLOCK
/* 0x91 */ { kKeyScrollLock, kKeyNone }, // VK_SCROLL
/* 0x92 */ { kKeyNone, kKeyNone }, // unassigned
/* 0x93 */ { kKeyNone, kKeyNone }, // unassigned
/* 0x94 */ { kKeyNone, kKeyNone }, // unassigned
/* 0x95 */ { kKeyNone, kKeyNone }, // unassigned
/* 0x96 */ { kKeyNone, kKeyNone }, // unassigned
/* 0x97 */ { kKeyNone, kKeyNone }, // unassigned
/* 0x98 */ { kKeyNone, kKeyNone }, // unassigned
/* 0x99 */ { kKeyNone, kKeyNone }, // unassigned
/* 0x9a */ { kKeyNone, kKeyNone }, // unassigned
/* 0x9b */ { kKeyNone, kKeyNone }, // unassigned
/* 0x9c */ { kKeyNone, kKeyNone }, // unassigned
/* 0x9d */ { kKeyNone, kKeyNone }, // unassigned
/* 0x9e */ { kKeyNone, kKeyNone }, // unassigned
/* 0x9f */ { kKeyNone, kKeyNone }, // unassigned
/* 0xa0 */ { kKeyShift_L, kKeyShift_L }, // VK_LSHIFT
/* 0xa1 */ { kKeyShift_R, kKeyShift_R }, // VK_RSHIFT
/* 0xa2 */ { kKeyControl_L, kKeyControl_L },// VK_LCONTROL
/* 0xa3 */ { kKeyControl_R, kKeyControl_R },// VK_RCONTROL
/* 0xa4 */ { kKeyAlt_L, kKeyAlt_L }, // VK_LMENU
/* 0xa5 */ { kKeyAlt_R, kKeyAlt_R }, // VK_RMENU
/* 0xa6 */ { kKeyNone, kKeyWWWBack }, // VK_BROWSER_BACK
/* 0xa7 */ { kKeyNone, kKeyWWWForward },// VK_BROWSER_FORWARD
/* 0xa8 */ { kKeyNone, kKeyWWWRefresh },// VK_BROWSER_REFRESH
/* 0xa9 */ { kKeyNone, kKeyWWWStop }, // VK_BROWSER_STOP
/* 0xaa */ { kKeyNone, kKeyWWWSearch },// VK_BROWSER_SEARCH
/* 0xab */ { kKeyNone, kKeyWWWFavorites },// VK_BROWSER_FAVORITES
/* 0xac */ { kKeyNone, kKeyWWWHome }, // VK_BROWSER_HOME
/* 0xad */ { kKeyNone, kKeyAudioMute },// VK_VOLUME_MUTE
/* 0xae */ { kKeyNone, kKeyAudioDown },// VK_VOLUME_DOWN
/* 0xaf */ { kKeyNone, kKeyAudioUp }, // VK_VOLUME_UP
/* 0xb0 */ { kKeyNone, kKeyAudioNext },// VK_MEDIA_NEXT_TRACK
/* 0xb1 */ { kKeyNone, kKeyAudioPrev },// VK_MEDIA_PREV_TRACK
/* 0xb2 */ { kKeyNone, kKeyAudioStop },// VK_MEDIA_STOP
/* 0xb3 */ { kKeyNone, kKeyAudioPlay },// VK_MEDIA_PLAY_PAUSE
/* 0xb4 */ { kKeyNone, kKeyAppMail }, // VK_LAUNCH_MAIL
/* 0xb5 */ { kKeyNone, kKeyAppMedia }, // VK_LAUNCH_MEDIA_SELECT
/* 0xb6 */ { kKeyNone, kKeyAppUser1 }, // VK_LAUNCH_APP1
/* 0xb7 */ { kKeyNone, kKeyAppUser2 }, // VK_LAUNCH_APP2
/* 0xb8 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xb9 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xba */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xbb */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xbc */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xbd */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xbe */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xbf */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xc0 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xc1 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xc2 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xc3 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xc4 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xc5 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xc6 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xc7 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xc8 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xc9 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xca */ { kKeyNone, kKeyNone }, // unassigned
/* 0xcb */ { kKeyNone, kKeyNone }, // unassigned
/* 0xcc */ { kKeyNone, kKeyNone }, // unassigned
/* 0xcd */ { kKeyNone, kKeyNone }, // unassigned
/* 0xce */ { kKeyNone, kKeyNone }, // unassigned
/* 0xcf */ { kKeyNone, kKeyNone }, // unassigned
/* 0xd0 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xd1 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xd2 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xd3 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xd4 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xd5 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xd6 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xd7 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xd8 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xd9 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xda */ { kKeyNone, kKeyNone }, // unassigned
/* 0xdb */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xdc */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xdd */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xde */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xdf */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xe0 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xe1 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xe2 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xe3 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xe4 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xe5 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xe6 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xe7 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xe8 */ { kKeyNone, kKeyNone }, // unassigned
/* 0xe9 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xea */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xeb */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xec */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xed */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xee */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xef */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xf0 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xf1 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xf2 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xf3 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xf4 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xf5 */ { kKeyNone, kKeyNone }, // OEM specific
/* 0xf6 */ { kKeyNone, kKeyNone }, // VK_ATTN
/* 0xf7 */ { kKeyNone, kKeyNone }, // VK_CRSEL
/* 0xf8 */ { kKeyNone, kKeyNone }, // VK_EXSEL
/* 0xf9 */ { kKeyNone, kKeyNone }, // VK_EREOF
/* 0xfa */ { kKeyNone, kKeyNone }, // VK_PLAY
/* 0xfb */ { kKeyNone, kKeyNone }, // VK_ZOOM
/* 0xfc */ { kKeyNone, kKeyNone }, // reserved
/* 0xfd */ { kKeyNone, kKeyNone }, // VK_PA1
/* 0xfe */ { kKeyNone, kKeyNone }, // VK_OEM_CLEAR
/* 0xff */ { kKeyNone, kKeyNone } // reserved
};
// map special KeyID keys to virtual key codes plus whether or not
// the key maps to an extended scan code
const UINT CMSWindowsKeyState::s_mapE000[] =
{
/* 0x00 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x08 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x10 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x18 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x20 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x28 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x30 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x38 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x40 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x48 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x50 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x58 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x60 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x68 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x70 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x78 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x80 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x88 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x90 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x98 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xa0 */ 0, 0, 0, 0,
/* 0xa4 */ 0, 0, VK_BROWSER_BACK | 0x100u, VK_BROWSER_FORWARD | 0x100u,
/* 0xa8 */ VK_BROWSER_REFRESH | 0x100u, VK_BROWSER_STOP | 0x100u,
/* 0xaa */ VK_BROWSER_SEARCH | 0x100u, VK_BROWSER_FAVORITES | 0x100u,
/* 0xac */ VK_BROWSER_HOME | 0x100u, VK_VOLUME_MUTE | 0x100u,
/* 0xae */ VK_VOLUME_DOWN | 0x100u, VK_VOLUME_UP | 0x100u,
/* 0xb0 */ VK_MEDIA_NEXT_TRACK | 0x100u, VK_MEDIA_PREV_TRACK | 0x100u,
/* 0xb2 */ VK_MEDIA_STOP | 0x100u, VK_MEDIA_PLAY_PAUSE | 0x100u,
/* 0xb4 */ VK_LAUNCH_MAIL | 0x100u, VK_LAUNCH_MEDIA_SELECT | 0x100u,
/* 0xb6 */ VK_LAUNCH_APP1 | 0x100u, VK_LAUNCH_APP2 | 0x100u,
/* 0xb8 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xc0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xc8 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xd0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xd8 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xe0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xe8 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xf0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xf8 */ 0, 0, 0, 0, 0, 0, 0, 0
};
const UINT CMSWindowsKeyState::s_mapEE00[] =
{
/* 0x00 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x08 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x10 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x18 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x20 */ VK_TAB, 0, 0, 0, 0, 0, 0, 0,
/* 0x28 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x30 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x38 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x40 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x48 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x50 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x58 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x60 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x68 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x70 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x78 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x80 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x88 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x90 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x98 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xa0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xa8 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xb0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xb8 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xc0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xc8 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xd0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xd8 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xe0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xe8 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xf0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xf8 */ 0, 0, 0, 0, 0, 0, 0, 0
};
/* in g_mapEF00, 0xac is VK_DECIMAL not VK_SEPARATOR because win32
* doesn't seem to use VK_SEPARATOR but instead maps VK_DECIMAL to
* the same meaning. */
const UINT CMSWindowsKeyState::s_mapEF00[] =
{
/* 0x00 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x08 */ VK_BACK, VK_TAB, 0, VK_CLEAR, 0, VK_RETURN, 0, 0,
/* 0x10 */ 0, 0, 0, VK_PAUSE, VK_SCROLL, 0/*sys-req*/, 0, 0,
/* 0x18 */ 0, 0, 0, VK_ESCAPE, 0, 0, 0, 0,
/* 0x20 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x28 */ 0, 0, VK_KANJI, 0, 0, 0, 0, 0,
/* 0x30 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x38 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x40 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x48 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x50 */ VK_HOME | 0x100u, VK_LEFT | 0x100u,
/* 0x52 */ VK_UP | 0x100u, VK_RIGHT | 0x100u,
/* 0x54 */ VK_DOWN | 0x100u, VK_PRIOR | 0x100u,
/* 0x56 */ VK_NEXT | 0x100u, VK_END | 0x100u,
/* 0x58 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x60 */ VK_SELECT, VK_SNAPSHOT, VK_EXECUTE, VK_INSERT | 0x100u,
/* 0x64 */ 0, 0, 0, VK_APPS | 0x100u,
/* 0x68 */ 0, 0, VK_HELP, VK_CANCEL | 0x100u, 0, 0, 0, 0,
/* 0x70 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0x78 */ 0, 0, 0, 0, 0, 0, 0, VK_NUMLOCK | 0x100u,
/* 0x80 */ VK_SPACE, 0, 0, 0, 0, 0, 0, 0,
/* 0x88 */ 0, VK_TAB, 0, 0, 0, VK_RETURN | 0x100u, 0, 0,
/* 0x90 */ 0, 0, 0, 0, 0, VK_HOME, VK_LEFT, VK_UP,
/* 0x98 */ VK_RIGHT, VK_DOWN, VK_PRIOR, VK_NEXT,
/* 0x9c */ VK_END, 0, VK_INSERT, VK_DELETE,
/* 0xa0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xa8 */ 0, 0, VK_MULTIPLY, VK_ADD,
/* 0xac */ VK_DECIMAL, VK_SUBTRACT, VK_DECIMAL, VK_DIVIDE | 0x100u,
/* 0xb0 */ VK_NUMPAD0, VK_NUMPAD1, VK_NUMPAD2, VK_NUMPAD3,
/* 0xb4 */ VK_NUMPAD4, VK_NUMPAD5, VK_NUMPAD6, VK_NUMPAD7,
/* 0xb8 */ VK_NUMPAD8, VK_NUMPAD9, 0, 0, 0, 0, VK_F1, VK_F2,
/* 0xc0 */ VK_F3, VK_F4, VK_F5, VK_F6, VK_F7, VK_F8, VK_F9, VK_F10,
/* 0xc8 */ VK_F11, VK_F12, VK_F13 | 0x100u, VK_F14 | 0x100u,
/* 0xcc */ VK_F15 | 0x100u, VK_F16 | 0x100u,
/* 0xce */ VK_F17 | 0x100u, VK_F18 | 0x100u,
/* 0xd0 */ VK_F19 | 0x100u, VK_F20 | 0x100u,
/* 0xd2 */ VK_F21 | 0x100u, VK_F22 | 0x100u,
/* 0xd4 */ VK_F23 | 0x100u, VK_F24 | 0x100u, 0, 0,
/* 0xd8 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xe0 */ 0, VK_LSHIFT, VK_RSHIFT | 0x100u, VK_LCONTROL,
/* 0xe4 */ VK_RCONTROL | 0x100u, VK_CAPITAL, 0, 0,
/* 0xe8 */ 0, VK_LMENU, VK_RMENU | 0x100u, VK_LWIN | 0x100u,
/* 0xec */ VK_RWIN | 0x100u, 0, 0, 0,
/* 0xf0 */ 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xf8 */ 0, 0, 0, 0, 0, 0, 0, VK_DELETE | 0x100u
};
CMSWindowsKeyState::CMSWindowsKeyState(CMSWindowsDesks* desks) :
m_is95Family(CArchMiscWindows::isWindows95Family()),
m_desks(desks),
m_keyLayout(GetKeyboardLayout(0))
{
}
CMSWindowsKeyState::~CMSWindowsKeyState()
{
// do nothing
}
void
CMSWindowsKeyState::setKeyLayout(HKL keyLayout)
{
m_keyLayout = keyLayout;
}
void
CMSWindowsKeyState::fixKey(void* target, UINT virtualKey)
{
// check if virtualKey is up but we think it's down. if so then
// synthesize a key release for it.
//
// we use GetAsyncKeyState() to check the state of the keys even
// though we might not be in sync with that yet.
KeyButton button = m_virtKeyToScanCode[virtualKey];
if (isKeyDown(button) && (GetAsyncKeyState(virtualKey) & 0x8000) == 0) {
// compute appropriate parameters for fake event
LPARAM lParam = 0xc0000000 | ((LPARAM)button << 16);
// process as if it were a key up
KeyModifierMask mask;
KeyID key = mapKeyFromEvent(virtualKey, lParam, &mask);
LOG((CLOG_DEBUG1 "event: fake key release key=%d mask=0x%04x button=0x%04x", key, mask, button));
CKeyState::sendKeyEvent(target, false, false, key, mask, 1, button);
setKeyDown(button, false);
}
}
KeyID
CMSWindowsKeyState::mapKeyFromEvent(WPARAM charAndVirtKey,
LPARAM info, KeyModifierMask* maskOut) const
{
// FIXME -- look into this
// note: known microsoft bugs
// Q72583 -- MapVirtualKey() maps keypad keys incorrectly
// 95,98: num pad vk code -> invalid scan code
// 95,98,NT4: num pad scan code -> bad vk code except
// SEPARATOR, MULTIPLY, SUBTRACT, ADD
// extract character and virtual key
char c = (char)((charAndVirtKey & 0xff00u) >> 8);
UINT vkCode = (charAndVirtKey & 0xffu);
// handle some keys via table lookup
int extended = ((info >> 24) & 1);
KeyID id = s_virtualKey[vkCode][extended];
// check if not in table; map character to key id
if (id == kKeyNone && c != 0) {
if ((c & 0x80u) == 0) {
// ASCII
id = static_cast<KeyID>(c) & 0xffu;
}
else {
// character is not really ASCII. instead it's some
// character in the current ANSI code page. try to
// convert that to a Unicode character. if we fail
// then use the single byte character as is.
char src = c;
wchar_t unicode;
if (MultiByteToWideChar(CP_THREAD_ACP, MB_PRECOMPOSED,
&src, 1, &unicode, 1) > 0) {
id = static_cast<KeyID>(unicode);
}
else {
id = static_cast<KeyID>(c) & 0xffu;
}
}
}
// set mask
KeyModifierMask activeMask = getActiveModifiers();
bool needAltGr = false;
if (id != kKeyNone && c != 0) {
// note if key requires AltGr. VkKeyScan() can have a problem
// with some characters. there are two problems in particular.
// first, typing a dead key then pressing space will cause
// VkKeyScan() to return 0xffff. second, certain characters
// may map to multiple virtual keys and we might get the wrong
// one. if that happens then we might not get the right
// modifier mask. AltGr+9 on the french keyboard layout (^)
// has this problem. in the first case, we'll assume AltGr is
// required (only because it solves the problems we've seen
// so far). in the second, we'll use whatever the keyboard
// state says.
WORD virtualKeyAndModifierState = VkKeyScanEx(c, m_keyLayout);
if (virtualKeyAndModifierState == 0xffff) {
// there is no mapping. assume AltGr.
LOG((CLOG_DEBUG1 "no VkKeyScan() mapping"));
needAltGr = true;
}
else if (LOBYTE(virtualKeyAndModifierState) != vkCode) {
// we didn't get the key that was actually pressed
LOG((CLOG_DEBUG1 "VkKeyScan() mismatch"));
if ((activeMask & (KeyModifierControl | KeyModifierAlt)) ==
(KeyModifierControl | KeyModifierAlt)) {
needAltGr = true;
}
}
else {
BYTE modifierState = HIBYTE(virtualKeyAndModifierState);
if ((modifierState & 6) == 6) {
// key requires ctrl and alt == AltGr
needAltGr = true;
}
}
}
// map modifier key
if (maskOut != NULL) {
if (needAltGr) {
activeMask |= KeyModifierModeSwitch;
activeMask &= ~(KeyModifierControl | KeyModifierAlt);
}
else {
activeMask &= ~KeyModifierModeSwitch;
}
*maskOut = activeMask;
}
return id;
}
KeyButton
CMSWindowsKeyState::virtualKeyToButton(UINT virtualKey) const
{
return m_virtKeyToScanCode[virtualKey & 0xffu];
}
void
CMSWindowsKeyState::sendKeyEvent(void* target,
bool press, bool isAutoRepeat,
KeyID key, KeyModifierMask mask,
SInt32 count, KeyButton button)
{
if (press || isAutoRepeat) {
// if AltGr is required for this key then make sure
// the ctrl and alt keys are *not* down on the
// client. windows simulates AltGr with ctrl and
// alt for some inexplicable reason and clients
// will get confused if they see mode switch and
// ctrl and alt. we'll also need to put ctrl and
// alt back the way they were after we simulate
// the key.
bool ctrlL = isKeyDown(m_virtKeyToScanCode[VK_LCONTROL]);
bool ctrlR = isKeyDown(m_virtKeyToScanCode[VK_RCONTROL]);
bool altL = isKeyDown(m_virtKeyToScanCode[VK_LMENU]);
bool altR = isKeyDown(m_virtKeyToScanCode[VK_RMENU]);
if ((mask & KeyModifierModeSwitch) != 0) {
KeyModifierMask mask2 = (mask &
~(KeyModifierControl |
KeyModifierAlt |
KeyModifierModeSwitch));
if (ctrlL) {
CKeyState::sendKeyEvent(target, false, false,
kKeyControl_L, mask2, 1,
m_virtKeyToScanCode[VK_LCONTROL]);
}
if (ctrlR) {
CKeyState::sendKeyEvent(target, false, false,
kKeyControl_R, mask2, 1,
m_virtKeyToScanCode[VK_RCONTROL]);
}
if (altL) {
CKeyState::sendKeyEvent(target, false, false,
kKeyAlt_L, mask2, 1,
m_virtKeyToScanCode[VK_LMENU]);
}
if (altR) {
CKeyState::sendKeyEvent(target, false, false,
kKeyAlt_R, mask2, 1,
m_virtKeyToScanCode[VK_RMENU]);
}
}
// send key
if (press) {
CKeyState::sendKeyEvent(target, true, false,
key, mask, 1, button);
if (count > 0) {
--count;
}
}
if (count >= 1) {
CKeyState::sendKeyEvent(target, true, true,
key, mask, count, button);
}
// restore ctrl and alt state
if ((mask & KeyModifierModeSwitch) != 0) {
KeyModifierMask mask2 = (mask &
~(KeyModifierControl |
KeyModifierAlt |
KeyModifierModeSwitch));
if (ctrlL) {
CKeyState::sendKeyEvent(target, true, false,
kKeyControl_L, mask2, 1,
m_virtKeyToScanCode[VK_LCONTROL]);
mask2 |= KeyModifierControl;
}
if (ctrlR) {
CKeyState::sendKeyEvent(target, true, false,
kKeyControl_R, mask2, 1,
m_virtKeyToScanCode[VK_RCONTROL]);
mask2 |= KeyModifierControl;
}
if (altL) {
CKeyState::sendKeyEvent(target, true, false,
kKeyAlt_L, mask2, 1,
m_virtKeyToScanCode[VK_LMENU]);
mask2 |= KeyModifierAlt;
}
if (altR) {
CKeyState::sendKeyEvent(target, true, false,
kKeyAlt_R, mask2, 1,
m_virtKeyToScanCode[VK_RMENU]);
mask2 |= KeyModifierAlt;
}
}
}
else {
// do key up
CKeyState::sendKeyEvent(target, false, false, key, mask, 1, button);
}
}
bool
CMSWindowsKeyState::fakeCtrlAltDel()
{
if (!m_is95Family) {
// to fake ctrl+alt+del on the NT family we broadcast a suitable
// hotkey to all windows on the winlogon desktop. however, the
// current thread must be on that desktop to do the broadcast
// and we can't switch just any thread because some own windows
// or hooks. so start a new thread to do the real work.
CThread cad(new CFunctionJob(&CMSWindowsKeyState::ctrlAltDelThread));
cad.wait();
}
else {
// simulate ctrl+alt+del
fakeKeyDown(kKeyDelete, KeyModifierControl | KeyModifierAlt,
m_virtKeyToScanCode[VK_DELETE]);
}
return true;
}
void
CMSWindowsKeyState::ctrlAltDelThread(void*)
{
// get the Winlogon desktop at whatever privilege we can
HDESK desk = OpenDesktop("Winlogon", 0, FALSE, MAXIMUM_ALLOWED);
if (desk != NULL) {
if (SetThreadDesktop(desk)) {
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0,
MAKELPARAM(MOD_CONTROL | MOD_ALT, VK_DELETE));
}
else {
LOG((CLOG_DEBUG "can't switch to Winlogon desk: %d", GetLastError()));
}
CloseDesktop(desk);
}
else {
LOG((CLOG_DEBUG "can't open Winlogon desk: %d", GetLastError()));
}
}
const char*
CMSWindowsKeyState::getKeyName(KeyButton button) const
{
char keyName[100];
char keyName2[100];
CMSWindowsKeyState* self = const_cast<CMSWindowsKeyState*>(this);
if (GetKeyNameText(button << 16, keyName, sizeof(keyName)) != 0) {
// get the extended name of the key if button is not extended
// or vice versa. if the names are different then report both.
button ^= 0x100u;
if (GetKeyNameText(button << 16, keyName2, sizeof(keyName2)) != 0 &&
strcmp(keyName, keyName2) != 0) {
self->m_keyName = CStringUtil::print("%s or %s", keyName, keyName2);
}
else {
self->m_keyName = keyName;
}
}
else if (m_scanCodeToVirtKey[button] != 0) {
self->m_keyName = s_vkToName[m_scanCodeToVirtKey[button]];
}
else {
self->m_keyName = CStringUtil::print("scan code 0x%03x", button);
}
return m_keyName.c_str();
}
void
CMSWindowsKeyState::doUpdateKeys()
{
// clear scan code to/from virtual key mapping
memset(m_scanCodeToVirtKey, 0, sizeof(m_scanCodeToVirtKey));
memset(m_virtKeyToScanCode, 0, sizeof(m_virtKeyToScanCode));
// add modifiers. note that ModeSwitch is mapped to VK_RMENU and
// that it's mapped *before* the Alt modifier. we must map it so
// KeyModifierModeSwitch mask can be converted to keystrokes. it
// must be mapped before the Alt modifier so that the Alt modifier
// takes precedence when mapping keystrokes to modifier masks.
KeyButtons keys;
keys.push_back(mapVirtKeyToButton(VK_RMENU));
addModifier(KeyModifierModeSwitch, keys);
keys.clear();
keys.push_back(mapVirtKeyToButton(VK_LSHIFT));
keys.push_back(mapVirtKeyToButton(VK_RSHIFT));
addModifier(KeyModifierShift, keys);
keys.clear();
keys.push_back(mapVirtKeyToButton(VK_LCONTROL));
keys.push_back(mapVirtKeyToButton(VK_RCONTROL));
addModifier(KeyModifierControl, keys);
keys.clear();
keys.push_back(mapVirtKeyToButton(VK_LMENU));
keys.push_back(mapVirtKeyToButton(VK_RMENU));
addModifier(KeyModifierAlt, keys);
keys.clear();
keys.push_back(mapVirtKeyToButton(VK_LWIN));
keys.push_back(mapVirtKeyToButton(VK_RWIN));
addModifier(KeyModifierSuper, keys);
keys.clear();
keys.push_back(mapVirtKeyToButton(VK_CAPITAL));
addModifier(KeyModifierCapsLock, keys);
keys.clear();
keys.push_back(mapVirtKeyToButton(VK_NUMLOCK));
addModifier(KeyModifierNumLock, keys);
keys.clear();
keys.push_back(mapVirtKeyToButton(VK_SCROLL));
addModifier(KeyModifierScrollLock, keys);
BYTE keyState[256];
GetKeyboardState(keyState);
for (UINT i = 1; i < 256; ++i) {
// skip mouse button virtual keys
switch (i) {
case VK_LBUTTON:
case VK_RBUTTON:
case VK_MBUTTON:
case VK_XBUTTON1:
case VK_XBUTTON2:
continue;
default:
break;
}
// map to a scancode and back to a virtual key
KeyButton button2;
KeyButton button = mapVirtKeyToButton(i, button2);
if (button == 0) {
continue;
}
// okay, now we have the scan code for the virtual key.
m_scanCodeToVirtKey[button] = i;
m_scanCodeToVirtKey[button2] = i;
m_virtKeyToScanCode[i] = button;
// if the virtual key is VK_DELETE then use the extended
// scan code. this is important for simulating ctrl+alt+del
// which only works with the extended key.
if (i == VK_DELETE) {
m_virtKeyToScanCode[i] |= 0x100u;
}
// save the key state
if ((keyState[i] & 0x80) != 0) {
setKeyDown(button, true);
}
// toggle state applies to all keys but we only want it for
// the modifier keys with corresponding lights.
if ((keyState[i] & 0x01) != 0) {
switch (i) {
case VK_CAPITAL:
setToggled(KeyModifierCapsLock);
break;
case VK_NUMLOCK:
setToggled(KeyModifierNumLock);
break;
case VK_SCROLL:
setToggled(KeyModifierScrollLock);
break;
}
}
}
}
void
CMSWindowsKeyState::doFakeKeyEvent(KeyButton button,
bool press, bool isAutoRepeat)
{
UINT vk = m_scanCodeToVirtKey[button];
m_desks->fakeKeyEvent(button, vk, press, isAutoRepeat);
}
KeyButton
CMSWindowsKeyState::mapKey(Keystrokes& keys, KeyID id,
KeyModifierMask mask, bool isAutoRepeat) const
{
UINT extVirtualKey = 0;
// check for special keys
if ((id & 0xfffff000u) == 0xe000u) {
if ((id & 0xff00u) == 0xe000u) {
extVirtualKey = s_mapE000[id & 0xffu];
}
else if ((id & 0xff00) == 0xee00) {
extVirtualKey = s_mapEE00[id & 0xffu];
}
else if ((id & 0xff00) == 0xef00) {
extVirtualKey = s_mapEF00[id & 0xffu];
}
if (extVirtualKey == 0) {
LOG((CLOG_DEBUG2 "unknown special key"));
return 0;
}
}
// special handling of VK_SNAPSHOT
if (extVirtualKey == VK_SNAPSHOT) {
// ignore key repeats on print screen
if (!isAutoRepeat) {
// active window (with alt) or fullscreen (without alt)?
BYTE scan = 0;
if ((mask & KeyModifierAlt) != 0) {
scan = 1;
}
// send events
keybd_event(VK_SNAPSHOT, scan, 0, 0);
keybd_event(VK_SNAPSHOT, scan, KEYEVENTF_KEYUP, 0);
}
return 0;
}
// handle other special keys
if (extVirtualKey != 0) {
// compute required modifiers
KeyModifierMask requiredMask = 0;
KeyModifierMask outMask = 0;
// check numeric keypad. note that virtual keys do not distinguish
// between the keypad and non-keypad movement keys. however, the
// virtual keys do distinguish between keypad numbers and operators
// (e.g. add, multiply) and their main keyboard counterparts.
// therefore, we can ignore the num-lock state for movement virtual
// keys but not for numeric keys.
UINT virtualKey = (extVirtualKey & 0xffu);
if (virtualKey >= VK_NUMPAD0 && virtualKey <= VK_DIVIDE) {
requiredMask |= KeyModifierNumLock;
if ((getActiveModifiers() & KeyModifierNumLock) != 0) {
LOG((CLOG_DEBUG2 "turn on num lock for keypad key"));
outMask |= KeyModifierNumLock;
}
}
// check for left tab. that requires the shift key.
if (id == kKeyLeftTab) {
requiredMask |= KeyModifierShift;
outMask |= KeyModifierShift;
}
// now generate the keystrokes and return the resulting modifier mask
KeyButton button = m_virtKeyToScanCode[virtualKey];
if ((extVirtualKey & 0x100u) != 0) {
button |= 0x100u;
}
LOG((CLOG_DEBUG2 "KeyID 0x%08x to virtual key %d scan code 0x%03x mask 0x%04x", id, virtualKey, button, outMask));
return mapToKeystrokes(keys, button,
outMask, requiredMask, isAutoRepeat);
}
// determine the thread that'll receive this event
// FIXME -- we can't be sure we'll get the right thread here
HWND targetWindow = GetForegroundWindow();
DWORD targetThread = GetWindowThreadProcessId(targetWindow, NULL);
// figure out the code page for the target thread. i'm just
// guessing here. get the target thread's keyboard layout,
// extract the language id from that, and choose the code page
// based on that language.
HKL hkl = GetKeyboardLayout(targetThread);
LANGID langID = static_cast<LANGID>(LOWORD(hkl));
UINT codePage = getCodePageFromLangID(langID);
LOG((CLOG_DEBUG2 "using code page %d and language id 0x%04x for thread 0x%08x", codePage, langID, targetThread));
// regular characters are complicated by dead keys. it may not be
// possible to generate a desired character directly. we may need
// to generate a dead key first then some other character. the
// app receiving the events will compose these two characters into
// a single precomposed character.
//
// as best as i can tell this is the simplest way to convert a
// character into its uncomposed version. along the way we'll
// discover if the key cannot be handled at all. we convert
// from wide char to multibyte, then from multibyte to wide char
// forcing conversion to composite characters, then from wide
// char back to multibyte without making precomposed characters.
//
// after the first conversion to multibyte we see if we can map
// the key. if so then we don't bother trying to decompose dead
// keys.
BOOL error;
char multiByte[2 * MB_LEN_MAX];
wchar_t unicode[2];
unicode[0] = static_cast<wchar_t>(id & 0x0000ffffu);
int nChars = WideCharToMultiByte(codePage,
WC_COMPOSITECHECK | WC_DEFAULTCHAR,
unicode, 1,
multiByte, sizeof(multiByte),
NULL, &error);
if (nChars == 0 || error) {
LOG((CLOG_DEBUG2 "KeyID 0x%08x not in code page", id));
return 0;
}
KeyButton button = mapCharacter(keys, multiByte[0], hkl, isAutoRepeat);
if (button != 0) {
LOG((CLOG_DEBUG2 "KeyID 0x%08x maps to character %u", id, (unsigned char)multiByte[0]));
if (isDeadChar(multiByte[0], hkl, false)) {
// character mapped to a dead key but we want the
// character for real so send a space key afterwards.
LOG((CLOG_DEBUG2 "character mapped to dead key"));
Keystroke keystroke;
keystroke.m_key = m_virtKeyToScanCode[VK_SPACE];
keystroke.m_press = true;
keystroke.m_repeat = false;
keys.push_back(keystroke);
keystroke.m_press = false;
keys.push_back(keystroke);
// ignore the release of this key since we already
// handled it.
button = 0;
}
return button;
}
nChars = MultiByteToWideChar(codePage,
MB_COMPOSITE | MB_ERR_INVALID_CHARS,
multiByte, nChars,
unicode, 2);
if (nChars == 0) {
LOG((CLOG_DEBUG2 "KeyID 0x%08x mb->wc mapping failed", id));
return 0;
}
nChars = WideCharToMultiByte(codePage,
0,
unicode, nChars,
multiByte, sizeof(multiByte),
NULL, &error);
if (nChars == 0 || error) {
LOG((CLOG_DEBUG2 "KeyID 0x%08x wc->mb mapping failed", id));
return 0;
}
// we expect one or two characters in multiByte. if there are two
// then the *second* is a dead key. process the dead key if there.
// FIXME -- we assume each character is one byte here
if (nChars > 2) {
LOG((CLOG_DEBUG2 "multibyte characters not supported for character 0x%04x", id));
return 0;
}
if (nChars == 2) {
LOG((CLOG_DEBUG2 "KeyID 0x%08x needs dead key %u", id, (unsigned char)multiByte[1]));
mapCharacter(keys, multiByte[1], hkl, isAutoRepeat);
}
// process character
LOG((CLOG_DEBUG2 "KeyID 0x%08x maps to character %u", id, (unsigned char)multiByte[0]));
return mapCharacter(keys, multiByte[0], hkl, isAutoRepeat);
}
UINT
CMSWindowsKeyState::getCodePageFromLangID(LANGID langid) const
{
// construct a locale id from the language id
LCID lcid = MAKELCID(langid, SORT_DEFAULT);
// get the ANSI code page for this locale
char data[6];
if (GetLocaleInfoA(lcid, LOCALE_IDEFAULTANSICODEPAGE, data, 6) == 0) {
// can't get code page
LOG((CLOG_DEBUG1 "can't find code page for langid 0x%04x", langid));
return CP_ACP;
}
// convert stringified code page into a number
UINT codePage = static_cast<UINT>(atoi(data));
if (codePage == 0) {
// parse failed
LOG((CLOG_DEBUG1 "can't parse code page %s for langid 0x%04x", data, langid));
return CP_ACP;
}
return codePage;
}
KeyButton
CMSWindowsKeyState::mapVirtKeyToButton(UINT virtualKey,
KeyButton& extended) const
{
// this method does what MapVirtualKey(virtualKey, 0) should do.
// we have to explicitly set the extended key flag for some
// modifiers because the win32 API is inadequate. we also find
// the unextended and the extended scancodes for those virtual
// keys that have both except for VK_SHIFT, VK_CONTROL, and VK_MENU.
//
// the windows 95 family doesn't map the side distinguishing virtual
// keys. but we know that VK_CONTROL maps to VK_LCONTROL and
// that VK_RCONTROL is the same scan code | 0x100. similarly for
// VK_MENU. but VK_RSHIFT cannot be determined that way so we
// search for it.
extended = 0;
KeyButton button;
if (m_is95Family) {
UINT scancode;
switch (virtualKey) {
case VK_LSHIFT:
button = (KeyButton)MapVirtualKey(VK_SHIFT, 0);
break;
case VK_RSHIFT:
// we have to search
scancode = MapVirtualKey(VK_SHIFT, 0);
for (UINT i = 1; i < 256; ++i) {
if (i != scancode && MapVirtualKey(i, 1) == VK_SHIFT) {
return (KeyButton)(i);
}
}
return 0;
case VK_LCONTROL:
case VK_RCONTROL:
button = (KeyButton)MapVirtualKey(VK_CONTROL, 0);
break;
case VK_LMENU:
case VK_RMENU:
button = (KeyButton)MapVirtualKey(VK_MENU, 0);
break;
case VK_PAUSE:
// mapped to 0. i hope this works on all keyboards.
button = (KeyButton)0x45u;
break;
case VK_DIVIDE:
// mapped to 0. i hope this works on all keyboards.
button = (KeyButton)0x35u;
break;
default:
button = (KeyButton)MapVirtualKey(virtualKey, 0);
// okay, now we have the scan code for the virtual key. windows
// may map different virtual keys to the same button. for example,
// windows 95/98/me maps virtual keys 220 and 226 to scan code 86
// in the british english keyboard map. why? who knows. it
// doesn't make any sense since a button can't actually generate
// more than one virtual key. to avoid this stupidity, we map the
// button back to a virtual key to see if it matches the starting
// point.
if (button == 0 || MapVirtualKey(button, 1) != virtualKey) {
return 0;
}
break;
}
}
else {
switch (virtualKey) {
case VK_PAUSE:
// mapped to 0. i hope this works on all keyboards.
button = (KeyButton)0x45u;
break;
default:
button = (KeyButton)MapVirtualKey(virtualKey, 0);
break;
}
}
// map extended keys
switch (virtualKey) {
case VK_RETURN: // Return/numpad Enter
case VK_PRIOR: // numpad PageUp/PageUp
case VK_NEXT: // numpad PageDown/PageDown
case VK_END: // numpad End/End
case VK_HOME: // numpad Home/Home
case VK_LEFT: // numpad Left/Left
case VK_UP: // numpad Up/Up
case VK_RIGHT: // numpad Right/Right
case VK_DOWN: // numpad Down/Down
case VK_INSERT: // numpad Insert/Insert
case VK_DELETE: // numpad Delete/Delete
// case VK_SELECT:
// case VK_EXECUTE:
// case VK_HELP:
extended = (KeyButton)(button | 0x100u);
break;
}
// see if the win32 API can help us determine an extended key.
// if the remapped virtual key doesn't match the starting
// point then there's a really good chance that that virtual
// key is mapped to an extended key. however, this is not
// the case for modifiers that don't distinguish between left
// and right.
UINT virtualKey2 = MapVirtualKey(button, 3);
if (virtualKey2 != 0 && virtualKey2 != virtualKey) {
switch (virtualKey) {
case VK_SHIFT:
case VK_CONTROL:
case VK_MENU:
break;
case VK_NUMPAD0:
case VK_NUMPAD1:
case VK_NUMPAD2:
case VK_NUMPAD3:
case VK_NUMPAD4:
case VK_NUMPAD5:
case VK_NUMPAD6:
case VK_NUMPAD7:
case VK_NUMPAD8:
case VK_NUMPAD9:
case VK_MULTIPLY:
case VK_ADD:
case VK_SEPARATOR:
case VK_SUBTRACT:
case VK_DECIMAL:
break;
case VK_PAUSE:
break;
default:
button |= 0x100u;
extended = 0;
break;
}
return button;
}
// note other extended keys that the win32 API won't help us with.
// on the windows 95 family this is the only way to find extended
// keys since MapVirtualKey(N, 3) is unimplemented.
switch (virtualKey) {
case VK_CANCEL:
case VK_LWIN:
case VK_RWIN:
case VK_APPS:
// case VK_SEPARATOR:
case VK_DIVIDE:
case VK_F13:
case VK_F14:
case VK_F15:
case VK_F16:
case VK_F17:
case VK_F18:
case VK_F19:
case VK_F20:
case VK_F21:
case VK_F22:
case VK_F23:
case VK_F24:
case VK_NUMLOCK:
case VK_RSHIFT:
case VK_RCONTROL:
case VK_RMENU:
case VK_BROWSER_BACK:
case VK_BROWSER_FORWARD:
case VK_BROWSER_REFRESH:
case VK_BROWSER_STOP:
case VK_BROWSER_SEARCH:
case VK_BROWSER_FAVORITES:
case VK_BROWSER_HOME:
case VK_VOLUME_MUTE:
case VK_VOLUME_DOWN:
case VK_VOLUME_UP:
case VK_MEDIA_NEXT_TRACK:
case VK_MEDIA_PREV_TRACK:
case VK_MEDIA_STOP:
case VK_MEDIA_PLAY_PAUSE:
case VK_LAUNCH_MAIL:
case VK_LAUNCH_MEDIA_SELECT:
case VK_LAUNCH_APP1:
case VK_LAUNCH_APP2:
button |= 0x100u;
extended = 0;
break;
}
return button;
}
KeyButton
CMSWindowsKeyState::mapVirtKeyToButton(UINT virtualKey) const
{
KeyButton dummy;
return mapVirtKeyToButton(virtualKey, dummy);
}
KeyButton
CMSWindowsKeyState::mapCharacter(Keystrokes& keys,
char c, HKL hkl, bool isAutoRepeat) const
{
KeyModifierMask activeMask = getActiveModifiers();
// translate the character into its virtual key and its required
// modifier state.
SHORT virtualKeyAndModifierState = VkKeyScanEx(c, hkl);
// get virtual key
UINT virtualKey = LOBYTE(virtualKeyAndModifierState);
if (virtualKey == 0xffu) {
LOG((CLOG_DEBUG2 "cannot map character %d", static_cast<unsigned char>(c)));
return 0;
}
// get the required modifier state
BYTE modifierState = HIBYTE(virtualKeyAndModifierState);
// see what modifiers are needed. we only check for shift and
// AltGr. we must always match the desired shift state but only
// the desired AltGr state if AltGr is required. AltGr is actually
// ctrl + alt so we can't require that ctrl and alt not be pressed
// otherwise users couldn't do, say, ctrl+z.
//
// the space character (ascii 32) is special in that it's unaffected
// by shift and should match our stored shift state.
KeyModifierMask desiredMask = 0;
KeyModifierMask requiredMask = KeyModifierShift;
if (c == 32) {
desiredMask |= (activeMask & KeyModifierShift);
}
else if ((modifierState & 0x01u) == 1) {
desiredMask |= KeyModifierShift;
}
if ((modifierState & 0x06u) == 6) {
// add ctrl and alt, which must be matched. match alt via
// mode-switch, which uses the right alt key rather than
// the left. windows doesn't care which alt key so long
// as ctrl is also down but some apps do their own mapping
// and they do care. Emacs and PuTTY, for example.
desiredMask |= KeyModifierControl | KeyModifierModeSwitch;
requiredMask |= KeyModifierControl | KeyModifierModeSwitch;
}
// handle combination of caps-lock and shift. if caps-lock is
// off locally then use shift as necessary. if caps-lock is on
// locally then it reverses the meaning of shift for keys that
// are subject to case conversion.
if ((activeMask & KeyModifierCapsLock) != 0) {
// there doesn't seem to be a simple way to test if a
// character respects the caps lock key. for normal
// characters it's easy enough but CharLower() and
// CharUpper() don't map dead keys even though they
// do respect caps lock for some unfathomable reason.
// first check the easy way. if that doesn't work
// then see if it's a dead key.
unsigned char uc = static_cast<unsigned char>(c);
if (CharLower(reinterpret_cast<LPTSTR>(uc)) !=
CharUpper(reinterpret_cast<LPTSTR>(uc)) ||
(MapVirtualKeyEx(virtualKey, 2, hkl) & 0x80000000lu) != 0) {
LOG((CLOG_DEBUG2 "flip shift"));
desiredMask ^= KeyModifierShift;
}
}
// now generate the keystrokes. ignore the resulting modifier
// mask since it can't have changed (because we don't call this
// method for modifier keys).
KeyButton scanCode = m_virtKeyToScanCode[virtualKey];
LOG((CLOG_DEBUG2 "character %d to virtual key %d scan code 0x%04x mask 0x%08x", (unsigned char)c, virtualKey, scanCode, desiredMask));
return mapToKeystrokes(keys, scanCode,
desiredMask, requiredMask, isAutoRepeat);
}
KeyButton
CMSWindowsKeyState::mapToKeystrokes(Keystrokes& keys, KeyButton button,
KeyModifierMask desiredMask, KeyModifierMask requiredMask,
bool isAutoRepeat) const
{
// adjust the modifiers to match the desired modifiers
Keystrokes undo;
if (!adjustModifiers(keys, undo, desiredMask, requiredMask)) {
LOG((CLOG_DEBUG2 "failed to adjust modifiers"));
keys.clear();
return 0;
}
// add the key event
Keystroke keystroke;
keystroke.m_key = button;
keystroke.m_press = true;
keystroke.m_repeat = isAutoRepeat;
keys.push_back(keystroke);
// put undo keystrokes at end of keystrokes in reverse order
while (!undo.empty()) {
keys.push_back(undo.back());
undo.pop_back();
}
return button;
}
bool
CMSWindowsKeyState::adjustModifiers(Keystrokes& keys,
Keystrokes& undo,
KeyModifierMask desiredMask,
KeyModifierMask requiredMask) const
{
// for each modifier in requiredMask make sure the current state
// of that modifier matches the bit in desiredMask.
for (KeyModifierMask mask = 1u; requiredMask != 0; mask <<= 1) {
if ((mask & requiredMask) != 0) {
bool active = ((desiredMask & mask) != 0);
if (!mapModifier(keys, undo, mask, active)) {
return false;
}
requiredMask ^= mask;
}
}
return true;
}
int
CMSWindowsKeyState::toAscii(TCHAR c, HKL hkl, bool menu, WORD* chars) const
{
// ignore bogus character
if (c == 0) {
return 0;
}
// translate the character into its virtual key and its required
// modifier state.
SHORT virtualKeyAndModifierState = VkKeyScanEx(c, hkl);
// get virtual key
BYTE virtualKey = LOBYTE(virtualKeyAndModifierState);
if (virtualKey == 0xffu) {
return 0;
}
// get the required modifier state
BYTE modifierState = HIBYTE(virtualKeyAndModifierState);
// set shift state required to generate key
BYTE keys[256];
memset(keys, 0, sizeof(keys));
if (modifierState & 0x01u) {
keys[VK_SHIFT] = 0x80u;
}
if (modifierState & 0x02u) {
keys[VK_CONTROL] = 0x80u;
}
if (modifierState & 0x04u) {
keys[VK_MENU] = 0x80u;
}
// get the scan code for the key
UINT scanCode = MapVirtualKeyEx(virtualKey, 0, hkl);
// discard characters if chars is NULL
WORD dummy;
if (chars == NULL) {
chars = &dummy;
}
// put it back
return ToAsciiEx(virtualKey, scanCode, keys, chars, menu ? 1 : 0, hkl);
}
bool
CMSWindowsKeyState::isDeadChar(TCHAR c, HKL hkl, bool menu) const
{
// first clear out ToAsciiEx()'s internal buffer by sending it
// a space.
WORD ascii;
int old = toAscii(' ', hkl, 0, &ascii);
// now pass the character of interest
WORD dummy;
bool isDead = (toAscii(c, hkl, menu, &dummy) < 0);
// clear out internal buffer again
toAscii(' ', hkl, 0, &dummy);
// put old dead key back if there was one
if (old == 1 && ascii != ' ') {
toAscii(static_cast<TCHAR>(ascii & 0xffu), hkl, menu, &dummy);
}
return isDead;
}
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