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qt6windows7/qtbase/src/plugins/platforms/windows/qwindowskeymapper.cpp
kleuter 09a199127f qt 6.8.0 support
2024-11-18 11:31:57 +01:00

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qwindowskeymapper.h"
#include "qwindowscontext.h"
#include "qwindowsintegration.h"
#include "qwindowswindow.h"
#include "qwindowsinputcontext.h"
#include <QtGui/qguiapplication.h>
#include <QtGui/qwindow.h>
#include <qpa/qwindowsysteminterface.h>
#include <private/qguiapplication_p.h>
#include <private/qhighdpiscaling_p.h>
#include <QtGui/qevent.h>
#include <QtGui/private/qwindowsguieventdispatcher_p.h>
#include <QtCore/private/qdebug_p.h>
#include <QtCore/private/qtools_p.h>
#include "vxkex.h"
#if defined(WM_APPCOMMAND)
# ifndef FAPPCOMMAND_MOUSE
# define FAPPCOMMAND_MOUSE 0x8000
# endif
# ifndef FAPPCOMMAND_KEY
# define FAPPCOMMAND_KEY 0
# endif
# ifndef FAPPCOMMAND_OEM
# define FAPPCOMMAND_OEM 0x1000
# endif
# ifndef FAPPCOMMAND_MASK
# define FAPPCOMMAND_MASK 0xF000
# endif
# ifndef GET_APPCOMMAND_LPARAM
# define GET_APPCOMMAND_LPARAM(lParam) ((short)(HIWORD(lParam) & ~FAPPCOMMAND_MASK))
# endif
# ifndef GET_DEVICE_LPARAM
# define GET_DEVICE_LPARAM(lParam) ((WORD)(HIWORD(lParam) & FAPPCOMMAND_MASK))
# endif
# ifndef GET_MOUSEORKEY_LPARAM
# define GET_MOUSEORKEY_LPARAM GET_DEVICE_LPARAM
# endif
# ifndef GET_FLAGS_LPARAM
# define GET_FLAGS_LPARAM(lParam) (LOWORD(lParam))
# endif
# ifndef GET_KEYSTATE_LPARAM
# define GET_KEYSTATE_LPARAM(lParam) GET_FLAGS_LPARAM(lParam)
# endif
#endif
QT_BEGIN_NAMESPACE
/*!
\class QWindowsKeyMapper
\brief Translates Windows keys to QWindowSystemInterface events.
\internal
In addition, handles some special keys to display system menus, etc.
The code originates from \c qkeymapper_win.cpp.
*/
static void clearKeyRecorderOnApplicationInActive(Qt::ApplicationState state);
QWindowsKeyMapper::QWindowsKeyMapper()
: m_useRTLExtensions(false), m_keyGrabber(nullptr)
{
memset(keyLayout, 0, sizeof(keyLayout));
auto *app = static_cast<QGuiApplication *>(QGuiApplication::instance());
QObject::connect(app, &QGuiApplication::applicationStateChanged,
app, clearKeyRecorderOnApplicationInActive);
changeKeyboard();
}
QWindowsKeyMapper::~QWindowsKeyMapper()= default;
#ifndef LANG_PASHTO
#define LANG_PASHTO 0x63
#endif
#ifndef LANG_SYRIAC
#define LANG_SYRIAC 0x5a
#endif
#ifndef LANG_DIVEHI
#define LANG_DIVEHI 0x65
#endif
#ifndef VK_OEM_PLUS
#define VK_OEM_PLUS 0xBB
#endif
#ifndef VK_OEM_3
#define VK_OEM_3 0xC0
#endif
// Get scancode from the given message
static constexpr quint32 getScancode(const MSG &msg)
{
const auto keyFlags = HIWORD(msg.lParam);
quint32 scancode = LOBYTE(keyFlags);
// if extended-key flag is on, the scan code consists of a sequence of two bytes,
// where the first byte has a value of 0xe0.
if ((keyFlags & KF_EXTENDED) != 0)
scancode |= 0xE000;
return scancode;
}
// Key recorder ------------------------------------------------------------------------[ start ] --
struct KeyRecord {
KeyRecord(int c, int a, int s, const QString &t) : code(c), ascii(a), state(s), text(t) {}
KeyRecord() {}
int code;
int ascii;
int state;
QString text;
};
// We need to record the pressed keys in order to decide, whether the key event is an autorepeat
// event. As soon as its state changes, the chain of autorepeat events will be broken.
static const int QT_MAX_KEY_RECORDINGS = 64; // User has LOTS of fingers...
struct KeyRecorder
{
inline KeyRecord *findKey(int code, bool remove);
inline void storeKey(int code, int ascii, int state, const QString& text);
inline void clearKeys();
int nrecs = 0;
KeyRecord deleted_record; // A copy of last entry removed from records[]
KeyRecord records[QT_MAX_KEY_RECORDINGS];
};
static KeyRecorder key_recorder;
static void clearKeyRecorderOnApplicationInActive(Qt::ApplicationState state)
{
if (state == Qt::ApplicationInactive)
key_recorder.clearKeys();
}
KeyRecord *KeyRecorder::findKey(int code, bool remove)
{
KeyRecord *result = nullptr;
for (int i = 0; i < nrecs; ++i) {
if (records[i].code == code) {
if (remove) {
deleted_record = records[i];
// Move rest down, and decrease count
while (i + 1 < nrecs) {
records[i] = records[i + 1];
++i;
}
--nrecs;
result = &deleted_record;
} else {
result = &records[i];
}
break;
}
}
return result;
}
void KeyRecorder::storeKey(int code, int ascii, int state, const QString& text)
{
Q_ASSERT_X(nrecs != QT_MAX_KEY_RECORDINGS,
"Internal KeyRecorder",
"Keyboard recorder buffer overflow, consider increasing QT_MAX_KEY_RECORDINGS");
if (nrecs == QT_MAX_KEY_RECORDINGS) {
qWarning("Qt: Internal keyboard buffer overflow");
return;
}
records[nrecs++] = KeyRecord(code,ascii,state,text);
}
void KeyRecorder::clearKeys()
{
nrecs = 0;
}
// Key recorder --------------------------------------------------------------------------[ end ] --
// Key translation ---------------------------------------------------------------------[ start ] --
// Meaning of values:
// 0 = Character output key, needs keyboard driver mapping
// Key_unknown = Unknown Virtual Key, no translation possible, ignore
static const uint KeyTbl[] = { // Keyboard mapping table
// Dec | Hex | Windows Virtual key
Qt::Key_unknown, // 0 0x00
Qt::Key_unknown, // 1 0x01 VK_LBUTTON | Left mouse button
Qt::Key_unknown, // 2 0x02 VK_RBUTTON | Right mouse button
Qt::Key_Cancel, // 3 0x03 VK_CANCEL | Control-Break processing
Qt::Key_unknown, // 4 0x04 VK_MBUTTON | Middle mouse button
Qt::Key_unknown, // 5 0x05 VK_XBUTTON1 | X1 mouse button
Qt::Key_unknown, // 6 0x06 VK_XBUTTON2 | X2 mouse button
Qt::Key_unknown, // 7 0x07 -- unassigned --
Qt::Key_Backspace, // 8 0x08 VK_BACK | BackSpace key
Qt::Key_Tab, // 9 0x09 VK_TAB | Tab key
Qt::Key_unknown, // 10 0x0A -- reserved --
Qt::Key_unknown, // 11 0x0B -- reserved --
Qt::Key_Clear, // 12 0x0C VK_CLEAR | Clear key
Qt::Key_Return, // 13 0x0D VK_RETURN | Enter key
Qt::Key_unknown, // 14 0x0E -- unassigned --
Qt::Key_unknown, // 15 0x0F -- unassigned --
Qt::Key_Shift, // 16 0x10 VK_SHIFT | Shift key
Qt::Key_Control, // 17 0x11 VK_CONTROL | Ctrl key
Qt::Key_Alt, // 18 0x12 VK_MENU | Alt key
Qt::Key_Pause, // 19 0x13 VK_PAUSE | Pause key
Qt::Key_CapsLock, // 20 0x14 VK_CAPITAL | Caps-Lock
Qt::Key_unknown, // 21 0x15 VK_KANA / VK_HANGUL | IME Kana or Hangul mode
Qt::Key_unknown, // 22 0x16 -- unassigned --
Qt::Key_unknown, // 23 0x17 VK_JUNJA | IME Junja mode
Qt::Key_unknown, // 24 0x18 VK_FINAL | IME final mode
Qt::Key_unknown, // 25 0x19 VK_HANJA / VK_KANJI | IME Hanja or Kanji mode
Qt::Key_unknown, // 26 0x1A -- unassigned --
Qt::Key_Escape, // 27 0x1B VK_ESCAPE | Esc key
Qt::Key_unknown, // 28 0x1C VK_CONVERT | IME convert
Qt::Key_unknown, // 29 0x1D VK_NONCONVERT | IME non-convert
Qt::Key_unknown, // 30 0x1E VK_ACCEPT | IME accept
Qt::Key_Mode_switch,// 31 0x1F VK_MODECHANGE | IME mode change request
Qt::Key_Space, // 32 0x20 VK_SPACE | Spacebar
Qt::Key_PageUp, // 33 0x21 VK_PRIOR | Page Up key
Qt::Key_PageDown, // 34 0x22 VK_NEXT | Page Down key
Qt::Key_End, // 35 0x23 VK_END | End key
Qt::Key_Home, // 36 0x24 VK_HOME | Home key
Qt::Key_Left, // 37 0x25 VK_LEFT | Left arrow key
Qt::Key_Up, // 38 0x26 VK_UP | Up arrow key
Qt::Key_Right, // 39 0x27 VK_RIGHT | Right arrow key
Qt::Key_Down, // 40 0x28 VK_DOWN | Down arrow key
Qt::Key_Select, // 41 0x29 VK_SELECT | Select key
Qt::Key_Printer, // 42 0x2A VK_PRINT | Print key
Qt::Key_Execute, // 43 0x2B VK_EXECUTE | Execute key
Qt::Key_Print, // 44 0x2C VK_SNAPSHOT | Print Screen key
Qt::Key_Insert, // 45 0x2D VK_INSERT | Ins key
Qt::Key_Delete, // 46 0x2E VK_DELETE | Del key
Qt::Key_Help, // 47 0x2F VK_HELP | Help key
0, // 48 0x30 (VK_0) | 0 key
0, // 49 0x31 (VK_1) | 1 key
0, // 50 0x32 (VK_2) | 2 key
0, // 51 0x33 (VK_3) | 3 key
0, // 52 0x34 (VK_4) | 4 key
0, // 53 0x35 (VK_5) | 5 key
0, // 54 0x36 (VK_6) | 6 key
0, // 55 0x37 (VK_7) | 7 key
0, // 56 0x38 (VK_8) | 8 key
0, // 57 0x39 (VK_9) | 9 key
Qt::Key_unknown, // 58 0x3A -- unassigned --
Qt::Key_unknown, // 59 0x3B -- unassigned --
Qt::Key_unknown, // 60 0x3C -- unassigned --
Qt::Key_unknown, // 61 0x3D -- unassigned --
Qt::Key_unknown, // 62 0x3E -- unassigned --
Qt::Key_unknown, // 63 0x3F -- unassigned --
Qt::Key_unknown, // 64 0x40 -- unassigned --
0, // 65 0x41 (VK_A) | A key
0, // 66 0x42 (VK_B) | B key
0, // 67 0x43 (VK_C) | C key
0, // 68 0x44 (VK_D) | D key
0, // 69 0x45 (VK_E) | E key
0, // 70 0x46 (VK_F) | F key
0, // 71 0x47 (VK_G) | G key
0, // 72 0x48 (VK_H) | H key
0, // 73 0x49 (VK_I) | I key
0, // 74 0x4A (VK_J) | J key
0, // 75 0x4B (VK_K) | K key
0, // 76 0x4C (VK_L) | L key
0, // 77 0x4D (VK_M) | M key
0, // 78 0x4E (VK_N) | N key
0, // 79 0x4F (VK_O) | O key
0, // 80 0x50 (VK_P) | P key
0, // 81 0x51 (VK_Q) | Q key
0, // 82 0x52 (VK_R) | R key
0, // 83 0x53 (VK_S) | S key
0, // 84 0x54 (VK_T) | T key
0, // 85 0x55 (VK_U) | U key
0, // 86 0x56 (VK_V) | V key
0, // 87 0x57 (VK_W) | W key
0, // 88 0x58 (VK_X) | X key
0, // 89 0x59 (VK_Y) | Y key
0, // 90 0x5A (VK_Z) | Z key
Qt::Key_Meta, // 91 0x5B VK_LWIN | Left Windows - MS Natural kbd
Qt::Key_Meta, // 92 0x5C VK_RWIN | Right Windows - MS Natural kbd
Qt::Key_Menu, // 93 0x5D VK_APPS | Application key-MS Natural kbd
Qt::Key_unknown, // 94 0x5E -- reserved --
Qt::Key_Sleep, // 95 0x5F VK_SLEEP
Qt::Key_0, // 96 0x60 VK_NUMPAD0 | Numeric keypad 0 key
Qt::Key_1, // 97 0x61 VK_NUMPAD1 | Numeric keypad 1 key
Qt::Key_2, // 98 0x62 VK_NUMPAD2 | Numeric keypad 2 key
Qt::Key_3, // 99 0x63 VK_NUMPAD3 | Numeric keypad 3 key
Qt::Key_4, // 100 0x64 VK_NUMPAD4 | Numeric keypad 4 key
Qt::Key_5, // 101 0x65 VK_NUMPAD5 | Numeric keypad 5 key
Qt::Key_6, // 102 0x66 VK_NUMPAD6 | Numeric keypad 6 key
Qt::Key_7, // 103 0x67 VK_NUMPAD7 | Numeric keypad 7 key
Qt::Key_8, // 104 0x68 VK_NUMPAD8 | Numeric keypad 8 key
Qt::Key_9, // 105 0x69 VK_NUMPAD9 | Numeric keypad 9 key
Qt::Key_Asterisk, // 106 0x6A VK_MULTIPLY | Multiply key
Qt::Key_Plus, // 107 0x6B VK_ADD | Add key
Qt::Key_unknown, // 108 0x6C VK_SEPARATOR | Separator key (locale-dependent)
Qt::Key_Minus, // 109 0x6D VK_SUBTRACT | Subtract key
Qt::Key_unknown, // 110 0x6E VK_DECIMAL | Decimal key (locale-dependent)
Qt::Key_Slash, // 111 0x6F VK_DIVIDE | Divide key
Qt::Key_F1, // 112 0x70 VK_F1 | F1 key
Qt::Key_F2, // 113 0x71 VK_F2 | F2 key
Qt::Key_F3, // 114 0x72 VK_F3 | F3 key
Qt::Key_F4, // 115 0x73 VK_F4 | F4 key
Qt::Key_F5, // 116 0x74 VK_F5 | F5 key
Qt::Key_F6, // 117 0x75 VK_F6 | F6 key
Qt::Key_F7, // 118 0x76 VK_F7 | F7 key
Qt::Key_F8, // 119 0x77 VK_F8 | F8 key
Qt::Key_F9, // 120 0x78 VK_F9 | F9 key
Qt::Key_F10, // 121 0x79 VK_F10 | F10 key
Qt::Key_F11, // 122 0x7A VK_F11 | F11 key
Qt::Key_F12, // 123 0x7B VK_F12 | F12 key
Qt::Key_F13, // 124 0x7C VK_F13 | F13 key
Qt::Key_F14, // 125 0x7D VK_F14 | F14 key
Qt::Key_F15, // 126 0x7E VK_F15 | F15 key
Qt::Key_F16, // 127 0x7F VK_F16 | F16 key
Qt::Key_F17, // 128 0x80 VK_F17 | F17 key
Qt::Key_F18, // 129 0x81 VK_F18 | F18 key
Qt::Key_F19, // 130 0x82 VK_F19 | F19 key
Qt::Key_F20, // 131 0x83 VK_F20 | F20 key
Qt::Key_F21, // 132 0x84 VK_F21 | F21 key
Qt::Key_F22, // 133 0x85 VK_F22 | F22 key
Qt::Key_F23, // 134 0x86 VK_F23 | F23 key
Qt::Key_F24, // 135 0x87 VK_F24 | F24 key
Qt::Key_unknown, // 136 0x88 -- unassigned --
Qt::Key_unknown, // 137 0x89 -- unassigned --
Qt::Key_unknown, // 138 0x8A -- unassigned --
Qt::Key_unknown, // 139 0x8B -- unassigned --
Qt::Key_unknown, // 140 0x8C -- unassigned --
Qt::Key_unknown, // 141 0x8D -- unassigned --
Qt::Key_unknown, // 142 0x8E -- unassigned --
Qt::Key_unknown, // 143 0x8F -- unassigned --
Qt::Key_NumLock, // 144 0x90 VK_NUMLOCK | Num Lock key
Qt::Key_ScrollLock, // 145 0x91 VK_SCROLL | Scroll Lock key
// Fujitsu/OASYS kbd --------------------
0, //Qt::Key_Jisho, // 146 0x92 VK_OEM_FJ_JISHO | 'Dictionary' key /
// VK_OEM_NEC_EQUAL = key on numpad on NEC PC-9800 kbd
Qt::Key_Massyo, // 147 0x93 VK_OEM_FJ_MASSHOU | 'Unregister word' key
Qt::Key_Touroku, // 148 0x94 VK_OEM_FJ_TOUROKU | 'Register word' key
0, //Qt::Key_Oyayubi_Left,//149 0x95 VK_OEM_FJ_LOYA | 'Left OYAYUBI' key
0, //Qt::Key_Oyayubi_Right,//150 0x96 VK_OEM_FJ_ROYA | 'Right OYAYUBI' key
Qt::Key_unknown, // 151 0x97 -- unassigned --
Qt::Key_unknown, // 152 0x98 -- unassigned --
Qt::Key_unknown, // 153 0x99 -- unassigned --
Qt::Key_unknown, // 154 0x9A -- unassigned --
Qt::Key_unknown, // 155 0x9B -- unassigned --
Qt::Key_unknown, // 156 0x9C -- unassigned --
Qt::Key_unknown, // 157 0x9D -- unassigned --
Qt::Key_unknown, // 158 0x9E -- unassigned --
Qt::Key_unknown, // 159 0x9F -- unassigned --
Qt::Key_Shift, // 160 0xA0 VK_LSHIFT | Left Shift key
Qt::Key_Shift, // 161 0xA1 VK_RSHIFT | Right Shift key
Qt::Key_Control, // 162 0xA2 VK_LCONTROL | Left Ctrl key
Qt::Key_Control, // 163 0xA3 VK_RCONTROL | Right Ctrl key
Qt::Key_Alt, // 164 0xA4 VK_LMENU | Left Menu key
Qt::Key_Alt, // 165 0xA5 VK_RMENU | Right Menu key
Qt::Key_Back, // 166 0xA6 VK_BROWSER_BACK | Browser Back key
Qt::Key_Forward, // 167 0xA7 VK_BROWSER_FORWARD | Browser Forward key
Qt::Key_Refresh, // 168 0xA8 VK_BROWSER_REFRESH | Browser Refresh key
Qt::Key_Stop, // 169 0xA9 VK_BROWSER_STOP | Browser Stop key
Qt::Key_Search, // 170 0xAA VK_BROWSER_SEARCH | Browser Search key
Qt::Key_Favorites, // 171 0xAB VK_BROWSER_FAVORITES| Browser Favorites key
Qt::Key_HomePage, // 172 0xAC VK_BROWSER_HOME | Browser Start and Home key
Qt::Key_VolumeMute, // 173 0xAD VK_VOLUME_MUTE | Volume Mute key
Qt::Key_VolumeDown, // 174 0xAE VK_VOLUME_DOWN | Volume Down key
Qt::Key_VolumeUp, // 175 0xAF VK_VOLUME_UP | Volume Up key
Qt::Key_MediaNext, // 176 0xB0 VK_MEDIA_NEXT_TRACK | Next Track key
Qt::Key_MediaPrevious, //177 0xB1 VK_MEDIA_PREV_TRACK | Previous Track key
Qt::Key_MediaStop, // 178 0xB2 VK_MEDIA_STOP | Stop Media key
Qt::Key_MediaTogglePlayPause,
// 179 0xB3 VK_MEDIA_PLAY_PAUSE | Play/Pause Media key
Qt::Key_LaunchMail, // 180 0xB4 VK_LAUNCH_MAIL | Start Mail key
Qt::Key_LaunchMedia,// 181 0xB5 VK_LAUNCH_MEDIA_SELECT Select Media key
Qt::Key_Launch0, // 182 0xB6 VK_LAUNCH_APP1 | Start Application 1 key
Qt::Key_Launch1, // 183 0xB7 VK_LAUNCH_APP2 | Start Application 2 key
Qt::Key_unknown, // 184 0xB8 -- reserved --
Qt::Key_unknown, // 185 0xB9 -- reserved --
0, // 186 0xBA VK_OEM_1 | ';:' for US
0, // 187 0xBB VK_OEM_PLUS | '+' any country
0, // 188 0xBC VK_OEM_COMMA | ',' any country
0, // 189 0xBD VK_OEM_MINUS | '-' any country
0, // 190 0xBE VK_OEM_PERIOD | '.' any country
0, // 191 0xBF VK_OEM_2 | '/?' for US
0, // 192 0xC0 VK_OEM_3 | '`~' for US
Qt::Key_unknown, // 193 0xC1 -- reserved --
Qt::Key_unknown, // 194 0xC2 -- reserved --
Qt::Key_unknown, // 195 0xC3 -- reserved --
Qt::Key_unknown, // 196 0xC4 -- reserved --
Qt::Key_unknown, // 197 0xC5 -- reserved --
Qt::Key_unknown, // 198 0xC6 -- reserved --
Qt::Key_unknown, // 199 0xC7 -- reserved --
Qt::Key_unknown, // 200 0xC8 -- reserved --
Qt::Key_unknown, // 201 0xC9 -- reserved --
Qt::Key_unknown, // 202 0xCA -- reserved --
Qt::Key_unknown, // 203 0xCB -- reserved --
Qt::Key_unknown, // 204 0xCC -- reserved --
Qt::Key_unknown, // 205 0xCD -- reserved --
Qt::Key_unknown, // 206 0xCE -- reserved --
Qt::Key_unknown, // 207 0xCF -- reserved --
Qt::Key_unknown, // 208 0xD0 -- reserved --
Qt::Key_unknown, // 209 0xD1 -- reserved --
Qt::Key_unknown, // 210 0xD2 -- reserved --
Qt::Key_unknown, // 211 0xD3 -- reserved --
Qt::Key_unknown, // 212 0xD4 -- reserved --
Qt::Key_unknown, // 213 0xD5 -- reserved --
Qt::Key_unknown, // 214 0xD6 -- reserved --
Qt::Key_unknown, // 215 0xD7 -- reserved --
Qt::Key_unknown, // 216 0xD8 -- unassigned --
Qt::Key_unknown, // 217 0xD9 -- unassigned --
Qt::Key_unknown, // 218 0xDA -- unassigned --
0, // 219 0xDB VK_OEM_4 | '[{' for US
0, // 220 0xDC VK_OEM_5 | '\|' for US
0, // 221 0xDD VK_OEM_6 | ']}' for US
0, // 222 0xDE VK_OEM_7 | ''"' for US
0, // 223 0xDF VK_OEM_8
Qt::Key_unknown, // 224 0xE0 -- reserved --
Qt::Key_unknown, // 225 0xE1 VK_OEM_AX | 'AX' key on Japanese AX kbd
Qt::Key_unknown, // 226 0xE2 VK_OEM_102 | "<>" or "\|" on RT 102-key kbd
Qt::Key_unknown, // 227 0xE3 VK_ICO_HELP | Help key on ICO
Qt::Key_unknown, // 228 0xE4 VK_ICO_00 | 00 key on ICO
Qt::Key_unknown, // 229 0xE5 VK_PROCESSKEY | IME Process key
Qt::Key_unknown, // 230 0xE6 VK_ICO_CLEAR |
Qt::Key_unknown, // 231 0xE7 VK_PACKET | Unicode char as keystrokes
Qt::Key_unknown, // 232 0xE8 -- unassigned --
// Nokia/Ericsson definitions ---------------
Qt::Key_unknown, // 233 0xE9 VK_OEM_RESET
Qt::Key_unknown, // 234 0xEA VK_OEM_JUMP
Qt::Key_unknown, // 235 0xEB VK_OEM_PA1
Qt::Key_unknown, // 236 0xEC VK_OEM_PA2
Qt::Key_unknown, // 237 0xED VK_OEM_PA3
Qt::Key_unknown, // 238 0xEE VK_OEM_WSCTRL
Qt::Key_unknown, // 239 0xEF VK_OEM_CUSEL
Qt::Key_unknown, // 240 0xF0 VK_OEM_ATTN
Qt::Key_unknown, // 241 0xF1 VK_OEM_FINISH
Qt::Key_unknown, // 242 0xF2 VK_OEM_COPY
Qt::Key_unknown, // 243 0xF3 VK_OEM_AUTO
Qt::Key_unknown, // 244 0xF4 VK_OEM_ENLW
Qt::Key_unknown, // 245 0xF5 VK_OEM_BACKTAB
Qt::Key_unknown, // 246 0xF6 VK_ATTN | Attn key
Qt::Key_unknown, // 247 0xF7 VK_CRSEL | CrSel key
Qt::Key_unknown, // 248 0xF8 VK_EXSEL | ExSel key
Qt::Key_unknown, // 249 0xF9 VK_EREOF | Erase EOF key
Qt::Key_Play, // 250 0xFA VK_PLAY | Play key
Qt::Key_Zoom, // 251 0xFB VK_ZOOM | Zoom key
Qt::Key_unknown, // 252 0xFC VK_NONAME | Reserved
Qt::Key_unknown, // 253 0xFD VK_PA1 | PA1 key
Qt::Key_Clear, // 254 0xFE VK_OEM_CLEAR | Clear key
0
};
static const uint CmdTbl[] = { // Multimedia keys mapping table
// Dec | Hex | AppCommand
Qt::Key_unknown, // 0 0x00
Qt::Key_Back, // 1 0x01 APPCOMMAND_BROWSER_BACKWARD
Qt::Key_Forward, // 2 0x02 APPCOMMAND_BROWSER_FORWARD
Qt::Key_Refresh, // 3 0x03 APPCOMMAND_BROWSER_REFRESH
Qt::Key_Stop, // 4 0x04 APPCOMMAND_BROWSER_STOP
Qt::Key_Search, // 5 0x05 APPCOMMAND_BROWSER_SEARCH
Qt::Key_Favorites, // 6 0x06 APPCOMMAND_BROWSER_FAVORITES
Qt::Key_Home, // 7 0x07 APPCOMMAND_BROWSER_HOME
Qt::Key_VolumeMute, // 8 0x08 APPCOMMAND_VOLUME_MUTE
Qt::Key_VolumeDown, // 9 0x09 APPCOMMAND_VOLUME_DOWN
Qt::Key_VolumeUp, // 10 0x0a APPCOMMAND_VOLUME_UP
Qt::Key_MediaNext, // 11 0x0b APPCOMMAND_MEDIA_NEXTTRACK
Qt::Key_MediaPrevious, // 12 0x0c APPCOMMAND_MEDIA_PREVIOUSTRACK
Qt::Key_MediaStop, // 13 0x0d APPCOMMAND_MEDIA_STOP
Qt::Key_MediaTogglePlayPause, // 14 0x0e APPCOMMAND_MEDIA_PLAYPAUSE
Qt::Key_LaunchMail, // 15 0x0f APPCOMMAND_LAUNCH_MAIL
Qt::Key_LaunchMedia, // 16 0x10 APPCOMMAND_LAUNCH_MEDIA_SELECT
Qt::Key_Launch0, // 17 0x11 APPCOMMAND_LAUNCH_APP1
Qt::Key_Launch1, // 18 0x12 APPCOMMAND_LAUNCH_APP2
Qt::Key_BassDown, // 19 0x13 APPCOMMAND_BASS_DOWN
Qt::Key_BassBoost, // 20 0x14 APPCOMMAND_BASS_BOOST
Qt::Key_BassUp, // 21 0x15 APPCOMMAND_BASS_UP
Qt::Key_TrebleDown, // 22 0x16 APPCOMMAND_TREBLE_DOWN
Qt::Key_TrebleUp, // 23 0x17 APPCOMMAND_TREBLE_UP
Qt::Key_MicMute, // 24 0x18 APPCOMMAND_MICROPHONE_VOLUME_MUTE
Qt::Key_MicVolumeDown, // 25 0x19 APPCOMMAND_MICROPHONE_VOLUME_DOWN
Qt::Key_MicVolumeUp, // 26 0x1a APPCOMMAND_MICROPHONE_VOLUME_UP
Qt::Key_Help, // 27 0x1b APPCOMMAND_HELP
Qt::Key_Find, // 28 0x1c APPCOMMAND_FIND
Qt::Key_New, // 29 0x1d APPCOMMAND_NEW
Qt::Key_Open, // 30 0x1e APPCOMMAND_OPEN
Qt::Key_Close, // 31 0x1f APPCOMMAND_CLOSE
Qt::Key_Save, // 32 0x20 APPCOMMAND_SAVE
Qt::Key_Printer, // 33 0x21 APPCOMMAND_PRINT
Qt::Key_Undo, // 34 0x22 APPCOMMAND_UNDO
Qt::Key_Redo, // 35 0x23 APPCOMMAND_REDO
Qt::Key_Copy, // 36 0x24 APPCOMMAND_COPY
Qt::Key_Cut, // 37 0x25 APPCOMMAND_CUT
Qt::Key_Paste, // 38 0x26 APPCOMMAND_PASTE
Qt::Key_Reply, // 39 0x27 APPCOMMAND_REPLY_TO_MAIL
Qt::Key_MailForward, // 40 0x28 APPCOMMAND_FORWARD_MAIL
Qt::Key_Send, // 41 0x29 APPCOMMAND_SEND_MAIL
Qt::Key_Spell, // 42 0x2a APPCOMMAND_SPELL_CHECK
Qt::Key_unknown, // 43 0x2b APPCOMMAND_DICTATE_OR_COMMAND_CONTROL_TOGGLE
Qt::Key_unknown, // 44 0x2c APPCOMMAND_MIC_ON_OFF_TOGGLE
Qt::Key_unknown, // 45 0x2d APPCOMMAND_CORRECTION_LIST
Qt::Key_MediaPlay, // 46 0x2e APPCOMMAND_MEDIA_PLAY
Qt::Key_MediaPause, // 47 0x2f APPCOMMAND_MEDIA_PAUSE
Qt::Key_MediaRecord, // 48 0x30 APPCOMMAND_MEDIA_RECORD
Qt::Key_AudioForward, // 49 0x31 APPCOMMAND_MEDIA_FAST_FORWARD
Qt::Key_AudioRewind, // 50 0x32 APPCOMMAND_MEDIA_REWIND
Qt::Key_ChannelDown, // 51 0x33 APPCOMMAND_MEDIA_CHANNEL_DOWN
Qt::Key_ChannelUp // 52 0x34 APPCOMMAND_MEDIA_CHANNEL_UP
};
// Possible modifier states.
// NOTE: The order of these states match the order in QWindowsKeyMapper::updatePossibleKeyCodes()!
static const Qt::KeyboardModifiers ModsTbl[] = {
Qt::NoModifier, // 0
Qt::ShiftModifier, // 1
Qt::ControlModifier, // 2
Qt::ControlModifier | Qt::ShiftModifier, // 3
Qt::AltModifier, // 4
Qt::AltModifier | Qt::ShiftModifier, // 5
Qt::AltModifier | Qt::ControlModifier, // 6
Qt::AltModifier | Qt::ShiftModifier | Qt::ControlModifier, // 7
Qt::NoModifier, // Fall-back to raw Key_*
};
static const size_t NumMods = sizeof ModsTbl / sizeof *ModsTbl;
static_assert((NumMods == KeyboardLayoutItem::NumQtKeys));
#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug d, const KeyboardLayoutItem &k)
{
QDebugStateSaver saver(d);
d.nospace();
d << "KeyboardLayoutItem(";
if (k.exists) {
for (size_t i = 0; i < NumMods; ++i) {
if (const quint32 qtKey = k.qtKey[i]) {
d << '[' << i << ' ';
QtDebugUtils::formatQFlags(d, ModsTbl[i]);
d << ' ' << Qt::hex << Qt::showbase << qtKey << Qt::dec << Qt::noshowbase << ' ';
QtDebugUtils::formatQEnum(d, Qt::Key(qtKey));
if (qtKey >= 32 && qtKey < 128)
d << " '" << char(qtKey) << '\'';
if (k.deadkeys & (1<<i))
d << " deadkey";
d << "] ";
}
}
}
d << ')';
return d;
}
#endif // QT_NO_DEBUG_STREAM
/**
Remap return or action key to select key for windows mobile.
*/
inline quint32 winceKeyBend(quint32 keyCode)
{
return KeyTbl[keyCode];
}
// Translate a VK into a Qt key code, or unicode character
static inline quint32 toKeyOrUnicode(quint32 vk, quint32 scancode, unsigned char *kbdBuffer, bool *isDeadkey = nullptr)
{
Q_ASSERT(vk > 0 && vk < 256);
quint32 code = 0;
QChar unicodeBuffer[5];
int res = ToUnicode(vk, scancode, kbdBuffer, reinterpret_cast<LPWSTR>(unicodeBuffer), 5, 0);
// When Ctrl modifier is used ToUnicode does not return correct values. In order to assign the
// right key the control modifier is removed for just that function if the previous call failed.
if (res == 0 && kbdBuffer[VK_CONTROL]) {
const unsigned char controlState = kbdBuffer[VK_CONTROL];
kbdBuffer[VK_CONTROL] = 0;
res = ToUnicode(vk, scancode, kbdBuffer, reinterpret_cast<LPWSTR>(unicodeBuffer), 5, 0);
kbdBuffer[VK_CONTROL] = controlState;
}
if (res)
code = unicodeBuffer[0].toUpper().unicode();
// Qt::Key_*'s are not encoded below 0x20, so try again, and DEL keys (0x7f) is encoded with a
// proper Qt::Key_ code
if (code < 0x20 || code == 0x7f) // Handles res==0 too
code = winceKeyBend(vk);
if (isDeadkey)
*isDeadkey = (res == -1);
return code == Qt::Key_unknown ? 0 : code;
}
static inline int asciiToKeycode(char a, int state)
{
a = QtMiscUtils::toAsciiUpper(a);
if ((state & Qt::ControlModifier) != 0) {
if (a >= 0 && a <= 31) // Ctrl+@..Ctrl+A..CTRL+Z..Ctrl+_
a += '@'; // to @..A..Z.._
}
return a & 0xff;
}
// Key translation -----------------------------------------------------------------------[ end ]---
// Keyboard map private ----------------------------------------------------------------[ start ]---
void QWindowsKeyMapper::deleteLayouts()
{
for (KeyboardLayoutItem &k : keyLayout)
k.exists = false;
}
void QWindowsKeyMapper::changeKeyboard()
{
deleteLayouts();
/* MAKELCID()'s first argument is a WORD, and GetKeyboardLayout()
* returns a DWORD. */
LCID newLCID = MAKELCID(quintptr(GetKeyboardLayout(0)), SORT_DEFAULT);
// keyboardInputLocale = qt_localeFromLCID(newLCID);
bool bidi = false;
wchar_t LCIDFontSig[16];
if (GetLocaleInfo(newLCID, LOCALE_FONTSIGNATURE, LCIDFontSig, sizeof(LCIDFontSig) / sizeof(wchar_t))
&& (LCIDFontSig[7] & wchar_t(0x0800)))
bidi = true;
keyboardInputDirection = bidi ? Qt::RightToLeft : Qt::LeftToRight;
m_seenAltGr = false;
}
// Helper function that is used when obtaining the list of characters that can be produced by one key and
// every possible combination of modifiers
inline void setKbdState(unsigned char *kbd, bool shift, bool ctrl, bool alt)
{
kbd[VK_LSHIFT ] = (shift ? 0x80 : 0);
kbd[VK_SHIFT ] = (shift ? 0x80 : 0);
kbd[VK_LCONTROL] = (ctrl ? 0x80 : 0);
kbd[VK_CONTROL ] = (ctrl ? 0x80 : 0);
kbd[VK_RMENU ] = (alt ? 0x80 : 0);
kbd[VK_MENU ] = (alt ? 0x80 : 0);
}
// Adds the msg's key to keyLayout if it is not yet present there
void QWindowsKeyMapper::updateKeyMap(const MSG &msg)
{
unsigned char kbdBuffer[256]; // Will hold the complete keyboard state
GetKeyboardState(kbdBuffer);
const quint32 scancode = getScancode(msg);
updatePossibleKeyCodes(kbdBuffer, scancode, quint32(msg.wParam));
}
// Fills keyLayout for that vk_key. Values are all characters one can type using that key
// (in connection with every combination of modifiers) and whether these "characters" are
// dead keys.
void QWindowsKeyMapper::updatePossibleKeyCodes(unsigned char *kbdBuffer, quint32 scancode,
quint32 vk_key)
{
if (!vk_key || (keyLayout[vk_key].exists && !keyLayout[vk_key].dirty))
return;
// Copy keyboard state, so we can modify and query output for each possible permutation
unsigned char buffer[256];
memcpy(buffer, kbdBuffer, sizeof(buffer));
// Always 0, as Windows doesn't treat these as modifiers;
buffer[VK_LWIN ] = 0;
buffer[VK_RWIN ] = 0;
buffer[VK_CAPITAL ] = 0;
buffer[VK_NUMLOCK ] = 0;
buffer[VK_SCROLL ] = 0;
// Always 0, since we'll only change the other versions
buffer[VK_RSHIFT ] = 0;
buffer[VK_RCONTROL] = 0;
buffer[VK_LMENU ] = 0; // Use right Alt, since left Ctrl + right Alt is considered AltGraph
// keyLayout contains the actual characters which can be written using the vk_key together with the
// different modifiers. '2' together with shift will for example cause the character
// to be @ for a US key layout (thus keyLayout[vk_key].qtKey[1] will be @). In addition to that
// it stores whether the resulting key is a dead key as these keys have to be handled later.
bool isDeadKey = false;
keyLayout[vk_key].deadkeys = 0;
keyLayout[vk_key].dirty = false;
keyLayout[vk_key].exists = true;
setKbdState(buffer, false, false, false);
keyLayout[vk_key].qtKey[0] = toKeyOrUnicode(vk_key, scancode, buffer, &isDeadKey);
keyLayout[vk_key].deadkeys |= isDeadKey ? 0x01 : 0;
setKbdState(buffer, true, false, false);
keyLayout[vk_key].qtKey[1] = toKeyOrUnicode(vk_key, scancode, buffer, &isDeadKey);
keyLayout[vk_key].deadkeys |= isDeadKey ? 0x02 : 0;
setKbdState(buffer, false, true, false);
keyLayout[vk_key].qtKey[2] = toKeyOrUnicode(vk_key, scancode, buffer, &isDeadKey);
keyLayout[vk_key].deadkeys |= isDeadKey ? 0x04 : 0;
setKbdState(buffer, true, true, false);
keyLayout[vk_key].qtKey[3] = toKeyOrUnicode(vk_key, scancode, buffer, &isDeadKey);
keyLayout[vk_key].deadkeys |= isDeadKey ? 0x08 : 0;
setKbdState(buffer, false, false, true);
keyLayout[vk_key].qtKey[4] = toKeyOrUnicode(vk_key, scancode, buffer, &isDeadKey);
keyLayout[vk_key].deadkeys |= isDeadKey ? 0x10 : 0;
setKbdState(buffer, true, false, true);
keyLayout[vk_key].qtKey[5] = toKeyOrUnicode(vk_key, scancode, buffer, &isDeadKey);
keyLayout[vk_key].deadkeys |= isDeadKey ? 0x20 : 0;
setKbdState(buffer, false, true, true);
keyLayout[vk_key].qtKey[6] = toKeyOrUnicode(vk_key, scancode, buffer, &isDeadKey);
keyLayout[vk_key].deadkeys |= isDeadKey ? 0x40 : 0;
setKbdState(buffer, true, true, true);
keyLayout[vk_key].qtKey[7] = toKeyOrUnicode(vk_key, scancode, buffer, &isDeadKey);
keyLayout[vk_key].deadkeys |= isDeadKey ? 0x80 : 0;
// Add a fall back key for layouts which don't do composition and show non-latin1 characters
quint32 fallbackKey = winceKeyBend(vk_key);
if (!fallbackKey || fallbackKey == Qt::Key_unknown) {
fallbackKey = 0;
if (vk_key != keyLayout[vk_key].qtKey[0] && vk_key != keyLayout[vk_key].qtKey[1]
&& vk_key < 0x5B && vk_key > 0x2F)
fallbackKey = vk_key;
}
keyLayout[vk_key].qtKey[8] = fallbackKey;
// If one of the values inserted into the keyLayout above, can be considered a dead key, we have
// to run the workaround below.
if (keyLayout[vk_key].deadkeys) {
// Push a Space, then the original key through the low-level ToAscii functions.
// We do this because these functions (ToAscii / ToUnicode) will alter the internal state of
// the keyboard driver By doing the following, we set the keyboard driver state back to what
// it was before we wrecked it with the code above.
// We need to push the space with an empty keystate map, since the driver checks the map for
// transitions in modifiers, so this helps us capture all possible deadkeys.
unsigned char emptyBuffer[256];
memset(emptyBuffer, 0, sizeof(emptyBuffer));
::ToAscii(VK_SPACE, 0, emptyBuffer, reinterpret_cast<LPWORD>(&buffer), 0);
::ToAscii(vk_key, scancode, kbdBuffer, reinterpret_cast<LPWORD>(&buffer), 0);
}
qCDebug(lcQpaEvents) << __FUNCTION__ << "for virtual key="
<< Qt::hex << Qt::showbase << vk_key << Qt::dec << Qt::noshowbase << keyLayout[vk_key];
}
static inline QString messageKeyText(const MSG &msg)
{
const QChar ch = QChar(ushort(msg.wParam));
return ch.isNull() ? QString() : QString(ch);
}
[[nodiscard]] static inline int getTitleBarHeight(const HWND hwnd)
{
const BOOL bNewAPI = (QWindowsContext::user32dll.getSystemMetricsForDpi != nullptr);
const UINT dpi = bNewAPI ? QWindowsContext::user32dll.getDpiForWindow(hwnd) : vxkex::GetDpiForWindow(hwnd);
const int captionHeight = bNewAPI ? QWindowsContext::user32dll.getSystemMetricsForDpi(SM_CYCAPTION, dpi) : vxkex::GetSystemMetricsForDpi(SM_CYCAPTION, dpi);
if (IsZoomed(hwnd))
return captionHeight;
// The frame height should also be taken into account if the window
// is not maximized.
const int frameHeight = bNewAPI ?
(QWindowsContext::user32dll.getSystemMetricsForDpi(SM_CYSIZEFRAME, dpi) + QWindowsContext::user32dll.getSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi))
: (vxkex::GetSystemMetricsForDpi(SM_CYSIZEFRAME, dpi) + vxkex::GetSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi));
return captionHeight + frameHeight;
}
[[nodiscard]] static inline bool isSystemMenuOffsetNeeded(const Qt::WindowFlags flags)
{
static constexpr const Qt::WindowFlags titleBarHints =
Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint | Qt::WindowContextHelpButtonHint;
return (flags & Qt::WindowSystemMenuHint) && (flags & Qt::WindowTitleHint) && !(flags & titleBarHints)
&& (flags & (Qt::FramelessWindowHint | Qt::CustomizeWindowHint));
}
static void showSystemMenu(QWindow* w)
{
QWindow *topLevel = QWindowsWindow::topLevelOf(w);
HWND topLevelHwnd = QWindowsWindow::handleOf(topLevel);
HMENU menu = GetSystemMenu(topLevelHwnd, FALSE);
if (!menu)
return; // no menu for this window
#define enabled (MF_BYCOMMAND | MFS_ENABLED)
#define disabled (MF_BYCOMMAND | MFS_GRAYED)
EnableMenuItem(menu, SC_MINIMIZE, (topLevel->flags() & Qt::WindowMinimizeButtonHint) ? enabled : disabled);
const bool maximized = IsZoomed(topLevelHwnd);
EnableMenuItem(menu, SC_MAXIMIZE, !(topLevel->flags() & Qt::WindowMaximizeButtonHint) || maximized ? disabled : enabled);
// We should _not_ check with the setFixedSize(x,y) case here, since Windows is not able to check
// this and our menu here would be out-of-sync with the menu produced by mouse-click on the
// System Menu, or right-click on the title bar.
EnableMenuItem(menu, SC_SIZE, (topLevel->flags() & Qt::MSWindowsFixedSizeDialogHint) || maximized ? disabled : enabled);
EnableMenuItem(menu, SC_MOVE, maximized ? disabled : enabled);
EnableMenuItem(menu, SC_CLOSE, enabled);
EnableMenuItem(menu, SC_RESTORE, maximized ? enabled : disabled);
// Highlight the first entry in the menu, this is what native Win32 applications usually do.
HiliteMenuItem(topLevelHwnd, menu, SC_RESTORE, MF_BYCOMMAND | MFS_HILITE);
// Set bold on close menu item
SetMenuDefaultItem(menu, SC_CLOSE, FALSE);
#undef enabled
#undef disabled
const QPoint pos = QHighDpi::toNativePixels(topLevel->geometry().topLeft(), topLevel);
const int titleBarOffset = isSystemMenuOffsetNeeded(topLevel->flags()) ? getTitleBarHeight(topLevelHwnd) : 0;
const int ret = TrackPopupMenuEx(menu,
TPM_LEFTALIGN | TPM_TOPALIGN | TPM_NONOTIFY | TPM_RETURNCMD,
pos.x(), pos.y() + titleBarOffset,
topLevelHwnd,
nullptr);
// Remove the highlight of the restore menu item, otherwise when the user right-clicks
// on the title bar, the popuped system menu will also highlight the restore item, which
// is not appropriate, it should only be highlighted if the menu is brought up by keyboard.
HiliteMenuItem(topLevelHwnd, menu, SC_RESTORE, MF_BYCOMMAND | MFS_UNHILITE);
if (ret)
qWindowsWndProc(topLevelHwnd, WM_SYSCOMMAND, WPARAM(ret), 0);
}
static inline void sendExtendedPressRelease(QWindow *w, unsigned long timestamp, int k,
Qt::KeyboardModifiers mods,
quint32 nativeScanCode,
quint32 nativeVirtualKey,
quint32 nativeModifiers,
const QString & text = QString(),
bool autorep = false,
ushort count = 1)
{
QWindowSystemInterface::handleExtendedKeyEvent(w, timestamp, QEvent::KeyPress, k, mods, nativeScanCode, nativeVirtualKey, nativeModifiers, text, autorep, count);
QWindowSystemInterface::handleExtendedKeyEvent(w, timestamp, QEvent::KeyRelease, k, mods, nativeScanCode, nativeVirtualKey, nativeModifiers, text, autorep, count);
}
/*!
\brief To be called from the window procedure.
*/
bool QWindowsKeyMapper::translateKeyEvent(QWindow *widget, HWND hwnd,
const MSG &msg, LRESULT *result)
{
*result = 0;
// Reset layout map when system keyboard layout is changed
if (msg.message == WM_INPUTLANGCHANGE) {
changeKeyboard();
return true;
}
#if defined(WM_APPCOMMAND)
if (msg.message == WM_APPCOMMAND)
return translateMultimediaKeyEventInternal(widget, msg);
#endif
// WM_(IME_)CHAR messages already contain the character in question so there is
// no need to fiddle with our key map. In any other case add this key to the
// keymap if it is not present yet.
if (msg.message != WM_CHAR && msg.message != WM_IME_CHAR)
updateKeyMap(msg);
MSG peekedMsg;
// consume dead chars?(for example, typing '`','a' resulting in a-accent).
if (PeekMessage(&peekedMsg, hwnd, 0, 0, PM_NOREMOVE) && peekedMsg.message == WM_DEADCHAR)
return true;
return translateKeyEventInternal(widget, msg, false, result);
}
bool QWindowsKeyMapper::translateMultimediaKeyEventInternal(QWindow *window, const MSG &msg)
{
#if defined(WM_APPCOMMAND)
const int cmd = GET_APPCOMMAND_LPARAM(msg.lParam);
// QTBUG-57198, do not send mouse-synthesized commands as key events in addition
bool skipPressRelease = false;
switch (GET_DEVICE_LPARAM(msg.lParam)) {
case FAPPCOMMAND_MOUSE:
return false;
case FAPPCOMMAND_KEY:
// QTBUG-62838, use WM_KEYDOWN/WM_KEYUP for commands that are reflected
// in VK(s) like VK_MEDIA_NEXT_TRACK, to get correct codes and autorepeat.
// Don't do that for APPCOMMAND_BROWSER_HOME as that one does not trigger two events.
if (cmd != APPCOMMAND_BROWSER_HOME)
skipPressRelease = true;
break;
}
const int dwKeys = GET_KEYSTATE_LPARAM(msg.lParam);
int state = 0;
state |= (dwKeys & MK_SHIFT ? int(Qt::ShiftModifier) : 0);
state |= (dwKeys & MK_CONTROL ? int(Qt::ControlModifier) : 0);
QWindow *receiver = m_keyGrabber ? m_keyGrabber : window;
if (cmd < 0 || cmd > 52)
return false;
const int qtKey = int(CmdTbl[cmd]);
if (!skipPressRelease)
sendExtendedPressRelease(receiver, msg.time, qtKey, Qt::KeyboardModifier(state), 0, 0, 0);
// QTBUG-43343: Make sure to return false if Qt does not handle the key, otherwise,
// the keys are not passed to the active media player.
# if QT_CONFIG(shortcut)
const QKeySequence sequence(Qt::Modifier(state) | Qt::Key(qtKey));
return QGuiApplicationPrivate::instance()->shortcutMap.hasShortcutForKeySequence(sequence);
# else
return false;
# endif
#else
Q_UNREACHABLE();
return false;
#endif
}
// QTBUG-69317: Check for AltGr found on some keyboards
// which is a sequence of left Ctrl (SYSKEY) + right Menu (Alt).
static bool isAltGr(MSG *msg)
{
enum : LONG_PTR { RightFlag = 0x1000000 };
if (msg->wParam != VK_CONTROL || (msg->lParam & RightFlag) != 0
|| (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYUP)) {
return false;
}
const UINT expectedMessage = msg->message == WM_SYSKEYUP
? WM_KEYUP : msg->message;
MSG peekedMsg;
if (PeekMessage(&peekedMsg, msg->hwnd, 0, 0, PM_NOREMOVE) == FALSE
|| peekedMsg.message != expectedMessage || peekedMsg.wParam != VK_MENU
|| (peekedMsg.lParam & RightFlag) == 0) {
return false;
}
*msg = peekedMsg;
PeekMessage(&peekedMsg, msg->hwnd, 0, 0, PM_REMOVE);
return true;
}
bool QWindowsKeyMapper::translateKeyEventInternal(QWindow *window, MSG msg,
bool /* grab */, LRESULT *lResult)
{
const bool altGr = m_detectAltGrModifier && isAltGr(&msg);
if (altGr)
m_seenAltGr = true;
const UINT msgType = msg.message;
const quint32 scancode = getScancode(msg);
auto vk_key = quint32(msg.wParam);
quint32 nModifiers = 0;
QWindow *receiver = m_keyGrabber ? m_keyGrabber : window;
// Map native modifiers to some bit representation
nModifiers |= (GetKeyState(VK_LSHIFT ) & 0x80 ? ShiftLeft : 0);
nModifiers |= (GetKeyState(VK_RSHIFT ) & 0x80 ? ShiftRight : 0);
nModifiers |= (GetKeyState(VK_LCONTROL) & 0x80 ? ControlLeft : 0);
nModifiers |= (GetKeyState(VK_RCONTROL) & 0x80 ? ControlRight : 0);
nModifiers |= (GetKeyState(VK_LMENU ) & 0x80 ? AltLeft : 0);
nModifiers |= (GetKeyState(VK_RMENU ) & 0x80 ? AltRight : 0);
nModifiers |= (GetKeyState(VK_LWIN ) & 0x80 ? MetaLeft : 0);
nModifiers |= (GetKeyState(VK_RWIN ) & 0x80 ? MetaRight : 0);
// Add Lock keys to the same bits
nModifiers |= (GetKeyState(VK_CAPITAL ) & 0x01 ? CapsLock : 0);
nModifiers |= (GetKeyState(VK_NUMLOCK ) & 0x01 ? NumLock : 0);
nModifiers |= (GetKeyState(VK_SCROLL ) & 0x01 ? ScrollLock : 0);
if (msg.lParam & ExtendedKey)
nModifiers |= msg.lParam & ExtendedKey;
// Get the modifier states (may be altered later, depending on key code)
int state = 0;
state |= (nModifiers & ShiftAny ? int(Qt::ShiftModifier) : 0);
state |= (nModifiers & AltLeft ? int(Qt::AltModifier) : 0);
if ((nModifiers & AltRight) != 0)
state |= m_seenAltGr ? Qt::GroupSwitchModifier : Qt::AltModifier;
if ((nModifiers & ControlAny) != 0 && (state & Qt::GroupSwitchModifier) == 0)
state |= Qt::ControlModifier;
state |= (nModifiers & MetaAny ? int(Qt::MetaModifier) : 0);
// A multi-character key or a Input method character
// not found by our look-ahead
if (msgType == WM_CHAR || msgType == WM_IME_CHAR) {
sendExtendedPressRelease(receiver, msg.time, 0, Qt::KeyboardModifier(state), scancode, 0, nModifiers, messageKeyText(msg), false);
return true;
}
// Enable Alt accelerators ("&File") on menus
if (msgType == WM_SYSKEYDOWN && (nModifiers & AltAny) != 0 && GetMenu(msg.hwnd) != nullptr)
return false;
if (msgType == WM_SYSKEYUP && nModifiers == 0 && GetMenu(msg.hwnd) != nullptr)
return false;
bool result = false;
// handle Directionality changes (BiDi) with RTL extensions
if (m_useRTLExtensions) {
static int dirStatus = 0;
if (!dirStatus && state == Qt::ControlModifier
&& msg.wParam == VK_CONTROL
&& msgType == WM_KEYDOWN) {
if (GetKeyState(VK_LCONTROL) < 0)
dirStatus = VK_LCONTROL;
else if (GetKeyState(VK_RCONTROL) < 0)
dirStatus = VK_RCONTROL;
} else if (dirStatus) {
if (msgType == WM_KEYDOWN) {
if (msg.wParam == VK_SHIFT) {
if (dirStatus == VK_LCONTROL && GetKeyState(VK_LSHIFT) < 0)
dirStatus = VK_LSHIFT;
else if (dirStatus == VK_RCONTROL && GetKeyState(VK_RSHIFT) < 0)
dirStatus = VK_RSHIFT;
} else {
dirStatus = 0;
}
} else if (msgType == WM_KEYUP) {
if (dirStatus == VK_LSHIFT
&& ((msg.wParam == VK_SHIFT && GetKeyState(VK_LCONTROL))
|| (msg.wParam == VK_CONTROL && GetKeyState(VK_LSHIFT)))) {
sendExtendedPressRelease(receiver, msg.time, Qt::Key_Direction_L, {},
scancode, vk_key, nModifiers, QString(), false);
result = true;
dirStatus = 0;
} else if (dirStatus == VK_RSHIFT
&& ( (msg.wParam == VK_SHIFT && GetKeyState(VK_RCONTROL))
|| (msg.wParam == VK_CONTROL && GetKeyState(VK_RSHIFT)))) {
sendExtendedPressRelease(receiver, msg.time, Qt::Key_Direction_R, {},
scancode, vk_key, nModifiers, QString(), false);
result = true;
dirStatus = 0;
} else {
dirStatus = 0;
}
} else {
dirStatus = 0;
}
}
} // RTL
// IME will process these keys, so simply return
if (msg.wParam == VK_PROCESSKEY)
return true;
// Ignore invalid virtual keycodes (see bugs 127424, QTBUG-3630)
if (msg.wParam == 0 || msg.wParam == 0xFF)
return true;
// Translate VK_* (native) -> Key_* (Qt) keys
int modifiersIndex = 0;
modifiersIndex |= (nModifiers & ShiftAny ? 0x1 : 0);
modifiersIndex |= (nModifiers & ControlAny ? 0x2 : 0);
modifiersIndex |= (nModifiers & AltAny ? 0x4 : 0);
// Note: For the resulting key, AltGr is equivalent to Alt + Ctrl (as
// opposed to Linux); hence no entry in KeyboardLayoutItem is required
int code = keyLayout[vk_key].qtKey[modifiersIndex];
// If the bit 24 of lParm is set you received a enter,
// otherwise a Return. (This is the extended key bit)
if ((code == Qt::Key_Return) && (msg.lParam & 0x1000000))
code = Qt::Key_Enter;
else if (altGr)
code = Qt::Key_AltGr;
// Invert state logic:
// If the key actually pressed is a modifier key, then we remove its modifier key from the
// state, since a modifier-key can't have itself as a modifier
if (code == Qt::Key_Control)
state = state ^ Qt::ControlModifier;
else if (code == Qt::Key_Shift)
state = state ^ Qt::ShiftModifier;
else if (code == Qt::Key_Alt)
state = state ^ Qt::AltModifier;
else if (code == Qt::Key_AltGr)
state = state ^ Qt::GroupSwitchModifier;
// All cursor keys without extended bit
if (!(msg.lParam & 0x1000000)) {
switch (code) {
case Qt::Key_Left:
case Qt::Key_Right:
case Qt::Key_Up:
case Qt::Key_Down:
case Qt::Key_PageUp:
case Qt::Key_PageDown:
case Qt::Key_Home:
case Qt::Key_End:
case Qt::Key_Insert:
case Qt::Key_Delete:
case Qt::Key_Asterisk:
case Qt::Key_Plus:
case Qt::Key_Minus:
case Qt::Key_Period:
case Qt::Key_Comma:
case Qt::Key_0:
case Qt::Key_1:
case Qt::Key_2:
case Qt::Key_3:
case Qt::Key_4:
case Qt::Key_5:
case Qt::Key_6:
case Qt::Key_7:
case Qt::Key_8:
case Qt::Key_9:
state |= ((msg.wParam >= '0' && msg.wParam <= '9')
|| (msg.wParam >= VK_OEM_PLUS && msg.wParam <= VK_OEM_3))
? 0 : int(Qt::KeypadModifier);
Q_FALLTHROUGH();
default:
if (uint(msg.lParam) == 0x004c0001 || uint(msg.lParam) == 0xc04c0001)
state |= Qt::KeypadModifier;
break;
}
}
// Other keys with with extended bit
else {
switch (code) {
case Qt::Key_Enter:
case Qt::Key_Slash:
case Qt::Key_NumLock:
state |= Qt::KeypadModifier;
break;
default:
break;
}
}
// KEYDOWN ---------------------------------------------------------------------------------
if (msgType == WM_KEYDOWN || msgType == WM_IME_KEYDOWN || msgType == WM_SYSKEYDOWN) {
// Get the last record of this key press, so we can validate the current state
// The record is not removed from the list
KeyRecord *rec = key_recorder.findKey(int(msg.wParam), false);
// If rec's state doesn't match the current state, something has changed behind our back
// (Consumed by modal widget is one possibility) So, remove the record from the list
// This will stop the auto-repeat of the key, should a modifier change, for example
if (rec && rec->state != state) {
key_recorder.findKey(int(msg.wParam), true);
rec = nullptr;
}
// Find unicode character from Windows Message Queue
MSG wm_char;
UINT charType = (msgType == WM_KEYDOWN
? WM_CHAR
: msgType == WM_IME_KEYDOWN ? WM_IME_CHAR : WM_SYSCHAR);
QChar uch;
if (PeekMessage(&wm_char, nullptr, charType, charType, PM_REMOVE)) {
if (QWindowsContext::filterNativeEvent(&wm_char, lResult))
return true;
if (receiver && QWindowsContext::filterNativeEvent(receiver, &wm_char, lResult))
return true;
// Found a ?_CHAR
uch = QChar(ushort(wm_char.wParam));
if (uch.isHighSurrogate()) {
m_lastHighSurrogate = uch;
return true;
}
if (uch.isLowSurrogate() && !m_lastHighSurrogate.isNull()) {
if (QObject *focusObject = QGuiApplication::focusObject()) {
const QChar chars[2] = {m_lastHighSurrogate, uch};
QInputMethodEvent event;
event.setCommitString(QString(chars, 2));
QCoreApplication::sendEvent(focusObject, &event);
}
m_lastHighSurrogate = QChar();
return true;
} else {
m_lastHighSurrogate = QChar();
}
if (msgType == WM_SYSKEYDOWN && uch.isLetter() && (msg.lParam & KF_ALTDOWN))
uch = uch.toLower(); // (See doc of WM_SYSCHAR) Alt-letter
if (!code && !uch.row())
code = asciiToKeycode(char(uch.cell()), state);
}
// Special handling for the WM_IME_KEYDOWN message. Microsoft IME (Korean) will not
// generate a WM_IME_CHAR message corresponding to this message. We might get wrong
// results, if we map this virtual key-code directly (for eg '?' US layouts). So try
// to find the correct key using the current message parameters & keyboard state.
if (uch.isNull() && msgType == WM_IME_KEYDOWN) {
const auto *windowsInputContext =
qobject_cast<const QWindowsInputContext *>(QWindowsIntegration::instance()->inputContext());
if (!(windowsInputContext && windowsInputContext->isComposing()))
vk_key = ImmGetVirtualKey(reinterpret_cast<HWND>(window->winId()));
BYTE keyState[256];
wchar_t newKey[3] = {0};
GetKeyboardState(keyState);
int val = ToUnicode(vk_key, scancode, keyState, newKey, 2, 0);
if (val == 1) {
uch = QChar(newKey[0]);
} else {
// If we are still not able to find a unicode key, pass the WM_IME_KEYDOWN
// message to DefWindowProc() for generating a proper WM_KEYDOWN.
return false;
}
}
// If no ?_CHAR was found in the queue; deduct character from the ?_KEYDOWN parameters
if (uch.isNull()) {
if (msg.wParam == VK_DELETE) {
uch = QChar(QLatin1Char(0x7f)); // Windows doesn't know this one.
} else {
if (msgType != WM_SYSKEYDOWN || !code) {
UINT map = MapVirtualKey(UINT(msg.wParam), 2);
// If the high bit of the return value is set, it's a deadkey
if (!(map & 0x80000000))
uch = QChar(ushort(map));
}
}
if (!code && !uch.row())
code = asciiToKeycode(char(uch.cell()), state);
}
// Special handling of global Windows hotkeys
if (state == Qt::AltModifier) {
switch (code) {
case Qt::Key_Escape:
case Qt::Key_Tab:
case Qt::Key_F4:
return false; // Send the event on to Windows
case Qt::Key_Space:
// do not pass this key to windows, we will process it ourselves
showSystemMenu(receiver);
return true;
default:
break;
}
}
// Map SHIFT + Tab to SHIFT + BackTab, QShortcutMap knows about this translation
if (code == Qt::Key_Tab && (state & Qt::ShiftModifier) == Qt::ShiftModifier)
code = Qt::Key_Backtab;
// If we have a record, it means that the key is already pressed, the state is the same
// so, we have an auto-repeating key
if (rec) {
if (code < Qt::Key_Shift || code > Qt::Key_ScrollLock) {
QWindowSystemInterface::handleExtendedKeyEvent(receiver, msg.time, QEvent::KeyRelease, code,
Qt::KeyboardModifier(state), scancode, quint32(msg.wParam), nModifiers, rec->text, true);
QWindowSystemInterface::handleExtendedKeyEvent(receiver, msg.time, QEvent::KeyPress, code,
Qt::KeyboardModifier(state), scancode, quint32(msg.wParam), nModifiers, rec->text, true);
result = true;
}
}
// No record of the key being previous pressed, so we now send a QEvent::KeyPress event,
// and store the key data into our records.
else {
const QString text = uch.isNull() ? QString() : QString(uch);
const char a = uch.row() ? char(0) : char(uch.cell());
const Qt::KeyboardModifiers modifiers(state);
#ifndef QT_NO_SHORTCUT
// Is Qt interested in the context menu key?
if (modifiers == Qt::SHIFT && code == Qt::Key_F10
&& !QGuiApplicationPrivate::instance()->shortcutMap.hasShortcutForKeySequence(QKeySequence(Qt::SHIFT | Qt::Key_F10))) {
return false;
}
#endif // !QT_NO_SHORTCUT
key_recorder.storeKey(int(msg.wParam), a, state, text);
// QTBUG-71210
// VK_PACKET specifies multiple characters. The system only sends the first
// character of this sequence for each.
if (msg.wParam == VK_PACKET)
code = asciiToKeycode(char(uch.cell()), state);
QWindowSystemInterface::handleExtendedKeyEvent(receiver, msg.time, QEvent::KeyPress, code,
modifiers, scancode, quint32(msg.wParam), nModifiers, text, false);
result =true;
bool store = true;
// Alt+<alphanumerical> go to the Win32 menu system if unhandled by Qt
if (msgType == WM_SYSKEYDOWN && !result && a) {
HWND parent = GetParent(QWindowsWindow::handleOf(receiver));
while (parent) {
if (GetMenu(parent)) {
SendMessage(parent, WM_SYSCOMMAND, SC_KEYMENU, a);
store = false;
result = true;
break;
}
parent = GetParent(parent);
}
}
if (!store)
key_recorder.findKey(int(msg.wParam), true);
}
}
// KEYUP -----------------------------------------------------------------------------------
else {
// Try to locate the key in our records, and remove it if it exists.
// The key may not be in our records if, for example, the down event was handled by
// win32 natively, or our window gets focus while a key is already press, but now gets
// the key release event.
const KeyRecord *rec = key_recorder.findKey(int(msg.wParam), true);
if (!rec && !(code == Qt::Key_Shift
|| code == Qt::Key_Control
|| code == Qt::Key_Meta
|| code == Qt::Key_Alt)) {
// Workaround for QTBUG-77153:
// The Surface Pen eraser button generates Meta+F18/19/20 keystrokes,
// but when it is not touching the screen the Fn Down is eaten and only
// a Fn Up with the previous state as "not pressed" is generated, which
// would be ignored. We detect this case and synthesize the expected events.
if ((msg.lParam & 0x40000000) == 0 &&
Qt::KeyboardModifier(state) == Qt::NoModifier &&
((code == Qt::Key_F18) || (code == Qt::Key_F19) || (code == Qt::Key_F20))) {
QWindowSystemInterface::handleExtendedKeyEvent(receiver, msg.time, QEvent::KeyPress, code,
Qt::MetaModifier, scancode,
quint32(msg.wParam), MetaLeft);
QWindowSystemInterface::handleExtendedKeyEvent(receiver, msg.time, QEvent::KeyRelease, code,
Qt::NoModifier, scancode,
quint32(msg.wParam), 0);
result = true;
}
} else {
if (!code)
code = asciiToKeycode(rec->ascii ? char(rec->ascii) : char(msg.wParam), state);
// Map SHIFT + Tab to SHIFT + BackTab, QShortcutMap knows about this translation
if (code == Qt::Key_Tab && (state & Qt::ShiftModifier) == Qt::ShiftModifier)
code = Qt::Key_Backtab;
QWindowSystemInterface::handleExtendedKeyEvent(receiver, msg.time, QEvent::KeyRelease, code,
Qt::KeyboardModifier(state), scancode, quint32(msg.wParam),
nModifiers,
(rec ? rec->text : QString()), false);
result = true;
// don't pass Alt to Windows unless we are embedded in a non-Qt window
if (code == Qt::Key_Alt) {
const QWindowsContext *context = QWindowsContext::instance();
HWND parent = GetParent(QWindowsWindow::handleOf(receiver));
while (parent) {
if (!context->findPlatformWindow(parent) && GetMenu(parent)) {
result = false;
break;
}
parent = GetParent(parent);
}
}
}
}
return result;
}
Qt::KeyboardModifiers QWindowsKeyMapper::queryKeyboardModifiers() const
{
Qt::KeyboardModifiers modifiers = Qt::NoModifier;
if (GetKeyState(VK_SHIFT) < 0)
modifiers |= Qt::ShiftModifier;
if (GetKeyState(VK_CONTROL) < 0)
modifiers |= Qt::ControlModifier;
if (GetKeyState(VK_MENU) < 0)
modifiers |= Qt::AltModifier;
if (GetKeyState(VK_LWIN) < 0 || GetKeyState(VK_RWIN) < 0)
modifiers |= Qt::MetaModifier;
return modifiers;
}
QList<QKeyCombination> QWindowsKeyMapper::possibleKeyCombinations(const QKeyEvent *e) const
{
QList<QKeyCombination> result;
const quint32 nativeVirtualKey = e->nativeVirtualKey();
if (nativeVirtualKey > 255)
return result;
const KeyboardLayoutItem &kbItem = keyLayout[nativeVirtualKey];
if (!kbItem.exists)
return result;
quint32 baseKey = kbItem.qtKey[0];
Qt::KeyboardModifiers keyMods = e->modifiers();
if (baseKey == Qt::Key_Return && (e->nativeModifiers() & ExtendedKey)) {
result << (Qt::Key_Enter | keyMods);
return result;
}
// The base key is _always_ valid, of course
result << QKeyCombination::fromCombined(int(baseKey) + int(keyMods));
for (size_t i = 1; i < NumMods; ++i) {
Qt::KeyboardModifiers neededMods = ModsTbl[i];
quint32 key = kbItem.qtKey[i];
if (key && key != baseKey && ((keyMods & neededMods) == neededMods)) {
const Qt::KeyboardModifiers missingMods = keyMods & ~neededMods;
const auto matchedKey = QKeyCombination::fromCombined(int(key) + int(missingMods));
const auto it = std::find_if(result.begin(), result.end(),
[key](auto keyCombination) {
return keyCombination.key() == key;
});
// QTBUG-67200: Use the match with the least modifiers (prefer
// Shift+9 over Alt + Shift + 9) resulting in more missing modifiers.
if (it == result.end())
result << matchedKey;
else if (missingMods > it->keyboardModifiers())
*it = matchedKey;
}
}
qCDebug(lcQpaEvents) << __FUNCTION__ << e << "nativeVirtualKey="
<< Qt::showbase << Qt::hex << e->nativeVirtualKey() << Qt::dec << Qt::noshowbase
<< e->modifiers() << kbItem << "\n returns" << result;
return result;
}
QT_END_NAMESPACE
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