qt_demoe/third/3rd_qhotkey/qhotkey_win.cpp

275 lines
7.7 KiB
C++

#include "qhotkey.h"
#include "qhotkey_p.h"
#include <qt_windows.h>
#include <QDebug>
#define HKEY_ID(nativeShortcut) (((nativeShortcut.key ^ (nativeShortcut.modifier << 8)) & 0x0FFF) | 0x7000)
class QHotkeyPrivateWin : public QHotkeyPrivate
{
public:
// QAbstractNativeEventFilter interface
bool nativeEventFilter(const QByteArray &eventType, void *message, long *result) Q_DECL_OVERRIDE;
protected:
// QHotkeyPrivate interface
quint32 nativeKeycode(Qt::Key keycode, bool &ok) Q_DECL_OVERRIDE;
quint32 nativeModifiers(Qt::KeyboardModifiers modifiers, bool &ok) Q_DECL_OVERRIDE;
bool registerShortcut(QHotkey::NativeShortcut shortcut) Q_DECL_OVERRIDE;
bool unregisterShortcut(QHotkey::NativeShortcut shortcut) Q_DECL_OVERRIDE;
private:
static QString formatWinError(DWORD winError);
};
NATIVE_INSTANCE(QHotkeyPrivateWin)
bool QHotkeyPrivateWin::nativeEventFilter(const QByteArray &eventType, void *message, long *result)
{
Q_UNUSED(eventType);
Q_UNUSED(result);
MSG *msg = static_cast<MSG *>(message);
if (msg->message == WM_HOTKEY) {
this->activateShortcut(QHotkey::NativeShortcut(HIWORD(msg->lParam), LOWORD(msg->lParam)));
}
return false;
}
quint32 QHotkeyPrivateWin::nativeKeycode(Qt::Key keycode, bool &ok)
{
ok = true;
if (keycode <= 0xFFFF) { //Try to obtain the key from it's "character"
const SHORT vKey = VkKeyScanW(keycode);
if (vKey > -1) {
return LOBYTE(vKey);
}
}
//find key from switch/case --> Only finds a very small subset of keys
switch (keycode) {
case Qt::Key_Escape:
return VK_ESCAPE;
case Qt::Key_Tab:
case Qt::Key_Backtab:
return VK_TAB;
case Qt::Key_Backspace:
return VK_BACK;
case Qt::Key_Return:
case Qt::Key_Enter:
return VK_RETURN;
case Qt::Key_Insert:
return VK_INSERT;
case Qt::Key_Delete:
return VK_DELETE;
case Qt::Key_Pause:
return VK_PAUSE;
case Qt::Key_Print:
return VK_PRINT;
case Qt::Key_Clear:
return VK_CLEAR;
case Qt::Key_Home:
return VK_HOME;
case Qt::Key_End:
return VK_END;
case Qt::Key_Left:
return VK_LEFT;
case Qt::Key_Up:
return VK_UP;
case Qt::Key_Right:
return VK_RIGHT;
case Qt::Key_Down:
return VK_DOWN;
case Qt::Key_PageUp:
return VK_PRIOR;
case Qt::Key_PageDown:
return VK_NEXT;
case Qt::Key_CapsLock:
return VK_CAPITAL;
case Qt::Key_NumLock:
return VK_NUMLOCK;
case Qt::Key_ScrollLock:
return VK_SCROLL;
case Qt::Key_F1:
return VK_F1;
case Qt::Key_F2:
return VK_F2;
case Qt::Key_F3:
return VK_F3;
case Qt::Key_F4:
return VK_F4;
case Qt::Key_F5:
return VK_F5;
case Qt::Key_F6:
return VK_F6;
case Qt::Key_F7:
return VK_F7;
case Qt::Key_F8:
return VK_F8;
case Qt::Key_F9:
return VK_F9;
case Qt::Key_F10:
return VK_F10;
case Qt::Key_F11:
return VK_F11;
case Qt::Key_F12:
return VK_F12;
case Qt::Key_F13:
return VK_F13;
case Qt::Key_F14:
return VK_F14;
case Qt::Key_F15:
return VK_F15;
case Qt::Key_F16:
return VK_F16;
case Qt::Key_F17:
return VK_F17;
case Qt::Key_F18:
return VK_F18;
case Qt::Key_F19:
return VK_F19;
case Qt::Key_F20:
return VK_F20;
case Qt::Key_F21:
return VK_F21;
case Qt::Key_F22:
return VK_F22;
case Qt::Key_F23:
return VK_F23;
case Qt::Key_F24:
return VK_F24;
case Qt::Key_Menu:
return VK_APPS;
case Qt::Key_Help:
return VK_HELP;
case Qt::Key_MediaNext:
return VK_MEDIA_NEXT_TRACK;
case Qt::Key_MediaPrevious:
return VK_MEDIA_PREV_TRACK;
case Qt::Key_MediaPlay:
return VK_MEDIA_PLAY_PAUSE;
case Qt::Key_MediaStop:
return VK_MEDIA_STOP;
case Qt::Key_VolumeDown:
return VK_VOLUME_DOWN;
case Qt::Key_VolumeUp:
return VK_VOLUME_UP;
case Qt::Key_VolumeMute:
return VK_VOLUME_MUTE;
case Qt::Key_Mode_switch:
return VK_MODECHANGE;
case Qt::Key_Select:
return VK_SELECT;
case Qt::Key_Printer:
return VK_PRINT;
case Qt::Key_Execute:
return VK_EXECUTE;
case Qt::Key_Sleep:
return VK_SLEEP;
case Qt::Key_Period:
return VK_DECIMAL;
case Qt::Key_Play:
return VK_PLAY;
case Qt::Key_Cancel:
return VK_CANCEL;
case Qt::Key_Forward:
return VK_BROWSER_FORWARD;
case Qt::Key_Refresh:
return VK_BROWSER_REFRESH;
case Qt::Key_Stop:
return VK_BROWSER_STOP;
case Qt::Key_Search:
return VK_BROWSER_SEARCH;
case Qt::Key_Favorites:
return VK_BROWSER_FAVORITES;
case Qt::Key_HomePage:
return VK_BROWSER_HOME;
case Qt::Key_LaunchMail:
return VK_LAUNCH_MAIL;
case Qt::Key_LaunchMedia:
return VK_LAUNCH_MEDIA_SELECT;
case Qt::Key_Launch0:
return VK_LAUNCH_APP1;
case Qt::Key_Launch1:
return VK_LAUNCH_APP2;
case Qt::Key_Massyo:
return VK_OEM_FJ_MASSHOU;
case Qt::Key_Touroku:
return VK_OEM_FJ_TOUROKU;
default:
ok = false;
return 0;
}
}
quint32 QHotkeyPrivateWin::nativeModifiers(Qt::KeyboardModifiers modifiers, bool &ok)
{
quint32 nMods = 0;
if (modifiers & Qt::ShiftModifier) {
nMods |= MOD_SHIFT;
}
if (modifiers & Qt::ControlModifier) {
nMods |= MOD_CONTROL;
}
if (modifiers & Qt::AltModifier) {
nMods |= MOD_ALT;
}
if (modifiers & Qt::MetaModifier) {
nMods |= MOD_WIN;
}
ok = true;
return nMods;
}
bool QHotkeyPrivateWin::registerShortcut(QHotkey::NativeShortcut shortcut)
{
BOOL ok = RegisterHotKey(NULL,
HKEY_ID(shortcut),
shortcut.modifier,
shortcut.key);
if (ok) {
return true;
} else {
qDebug() << "Failed to register hotkey. Error:"
<< qPrintable(QHotkeyPrivateWin::formatWinError(::GetLastError()));
return false;
}
}
bool QHotkeyPrivateWin::unregisterShortcut(QHotkey::NativeShortcut shortcut)
{
BOOL ok = UnregisterHotKey(NULL, HKEY_ID(shortcut));
if (ok) {
return true;
} else {
qDebug() << "Failed to unregister hotkey. Error:"
<< qPrintable(QHotkeyPrivateWin::formatWinError(::GetLastError()));
return false;
}
}
QString QHotkeyPrivateWin::formatWinError(DWORD winError)
{
wchar_t *buffer = NULL;
DWORD num = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
winError,
0,
(LPWSTR)&buffer,
0,
NULL);
if (buffer) {
QString res = QString::fromWCharArray(buffer, num);
LocalFree(buffer);
return res;
} else {
return QString();
}
}