void TbHotkey_OnPreviewKeyDown(object sender, KeyEventArgs e)
{
e.Handled = true;
tbMsg.Visibility = Visibility.Hidden;
//when alt is pressed, the real key should be e.SystemKey
Key key = (e.Key == Key.System ? e.SystemKey : e.Key);
SpecialKeyState specialKeyState = GlobalHotkey.Instance.CheckModifiers();
var hotkeyModel = new HotkeyModel(
specialKeyState.AltPressed,
specialKeyState.ShiftPressed,
specialKeyState.WinPressed,
specialKeyState.CtrlPressed,
key);
var hotkeyString = hotkeyModel.ToString();
if (hotkeyString == tbHotkey.Text)
{
return;
}
Dispatcher.InvokeAsync(async () =>
{
await Task.Delay(500);
SetHotkey(hotkeyModel);
});
}
public void RemoveHotkey(HotkeyModel hotkey)
{
if (_hotkeys.ContainsKey(hotkey))
{
_hotkeys.Remove(hotkey);
}
}
public void SetHotkey(HotkeyModel hotkey, Action action)
{
if (!_hotkeys.ContainsKey(hotkey) && hotkey.Key != Key.None && hotkey.ModifierKeys.Length > 0)
{
_hotkeys[hotkey] = action;
}
else
{
throw new ArgumentException("hotkey existed");
}
}
public void SetHotkey(HotkeyModel keyModel, bool triggerValidate = true)
{
CurrentHotkey = keyModel;
tbHotkey.Text = CurrentHotkey.ToString();
tbHotkey.Select(tbHotkey.Text.Length, 0);
if (triggerValidate)
{
CurrentHotkeyAvailable = CheckHotkeyAvailability();
if (!CurrentHotkeyAvailable)
{
tbMsg.Foreground = new SolidColorBrush(Colors.Red);
tbMsg.Text = InternationalizationManager.Instance.GetTranslation("hotkeyUnavailable");
}
else
{
tbMsg.Foreground = new SolidColorBrush(Colors.Green);
tbMsg.Text = InternationalizationManager.Instance.GetTranslation("succeed");
}
tbMsg.Visibility = Visibility.Visible;
OnHotkeyChanged();
}
}
private void SetHotkey(HotkeyModel hotkey, EventHandler<HotkeyEventArgs> action)
{
string hotkeyStr = hotkey.ToString();
try
{
HotkeyManager.Current.AddOrReplace(hotkeyStr, hotkey.CharKey, hotkey.ModifierKeys, action);
}
catch (Exception)
{
string errorMsg = string.Format(InternationalizationManager.Instance.GetTranslation("registerHotkeyFailed"), hotkeyStr);
MessageBox.Show(errorMsg);
}
}
void TbHotkey_OnPreviewKeyDown(object sender, KeyEventArgs e)
{
e.Handled = true;
tbMsg.Visibility = Visibility.Hidden;
//when alt is pressed, the real key should be e.SystemKey
Key key = (e.Key == Key.System ? e.SystemKey : e.Key);
SpecialKeyState specialKeyState = GlobalHotkey.Instance.CheckModifiers();
var hotkeyModel = new HotkeyModel(
specialKeyState.AltPressed,
specialKeyState.ShiftPressed,
specialKeyState.WinPressed,
specialKeyState.CtrlPressed,
key);
var hotkeyString = hotkeyModel.ToString();
if (hotkeyString == tbHotkey.Text)
{
return;
}
Dispatcher.DelayInvoke("HotkeyAvailabilityTest",
o =>
{
SetHotkey(hotkeyModel);
},
TimeSpan.FromMilliseconds(500));
}
public void SetHotkey(string hotkeyStr, EventHandler<HotkeyEventArgs> action)
{
var hotkey = new HotkeyModel(hotkeyStr);
SetHotkey(hotkey, action);
}
private IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam)
{
const int pressed = 0; // HC_ACTION
IntPtr intercepted = (IntPtr)1;
if (nCode == pressed)
{
var m = (WindowsMessage)wParam.ToInt32();
var info = (KBDLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(KBDLLHOOKSTRUCT));
if (m == WindowsMessage.KEYDOWN || m == WindowsMessage.SYSKEYDOWN)
{
var pressedHotkey = new HotkeyModel(info.vkCode);
if (pressedHotkey.Key != Key.None &&
pressedHotkey.ModifierKeys.Length != 0)
{
if (!Capturing)
{
if (_hotkeys.ContainsKey(pressedHotkey))
{
_modifierPressed = true;
var action = _hotkeys[pressedHotkey];
action();
return(intercepted);
}
else
{
return(InterceptKeys.CallNextHookEx(_hookID, nCode, wParam, lParam));
}
}
else if (HotkeyCaptured != null)
{
_modifierPressed = true;
var args = new HotkeyCapturedEventArgs
{
Hotkey = pressedHotkey,
Available = !_hotkeys.ContainsKey(pressedHotkey),
};
HotkeyCaptured.Invoke(this, args);
return(intercepted);
}
else
{
return(InterceptKeys.CallNextHookEx(_hookID, nCode, wParam, lParam));
}
}
else
{
return(InterceptKeys.CallNextHookEx(_hookID, nCode, wParam, lParam));
}
}
else if (m == WindowsMessage.KEYUP)
{
// if win+r is pressed, windows star menu will still popup
// so we need to discard keyup event
if (_modifierPressed)
{
_modifierPressed = false;
if (info.vkCode == Key.LWIN || info.vkCode == Key.RWIN || info.vkCode == Key.WIN)
{
return(intercepted);
}
else
{
return(InterceptKeys.CallNextHookEx(_hookID, nCode, wParam, lParam));
}
}
else
{
return(InterceptKeys.CallNextHookEx(_hookID, nCode, wParam, lParam));
}
}
else
{
return(InterceptKeys.CallNextHookEx(_hookID, nCode, wParam, lParam));
}
}
else
{
return(InterceptKeys.CallNextHookEx(_hookID, nCode, wParam, lParam));
}
}