private IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam)
{
var fEatKeyStroke = false;
var wParamTyped = wParam.ToInt32();
// ReSharper disable once InvertIf
if (Enum.IsDefined(typeof(KeyboardState), wParamTyped))
{
var o = Marshal.PtrToStructure(lParam, typeof(LowLevelKeyboardInputEvent));
var p = (LowLevelKeyboardInputEvent)o;
var eventArguments = new GlobalKeyboardHookEventArgs(p, (KeyboardState)wParamTyped);
var handler = KeyboardPressed;
handler?.Invoke(this, eventArguments);
fEatKeyStroke = eventArguments.Handled;
}
return(fEatKeyStroke ? (IntPtr)1 : CallNextHookEx(IntPtr.Zero, nCode, wParam, lParam));
}
private void OnKeyPressed(object sender, GlobalKeyboardHookEventArgs e)
{
const int ctrlKeyCode = 162;
const int altKeyCode = 164;
var keyCode = e.KeyboardData.VirtualCode;
if (keyCode == ctrlKeyCode || keyCode == altKeyCode)
{
if (
!ModKeyAltDown &&
keyCode == altKeyCode &&
(
e.KeyboardState == GlobalKeyboardHook.KeyboardState.SysKeyDown ||
e.KeyboardState == GlobalKeyboardHook.KeyboardState.KeyDown
)
)
{
ModKeyAltDown = true;
}
if (
!ModKeyCtrlDown &&
keyCode == ctrlKeyCode &&
(
e.KeyboardState == GlobalKeyboardHook.KeyboardState.SysKeyDown ||
e.KeyboardState == GlobalKeyboardHook.KeyboardState.KeyDown
)
)
{
ModKeyCtrlDown = true;
}
if (
ModKeyAltDown &&
keyCode == altKeyCode &&
(
e.KeyboardState == GlobalKeyboardHook.KeyboardState.SysKeyUp ||
e.KeyboardState == GlobalKeyboardHook.KeyboardState.KeyUp
)
)
{
ModKeyAltDown = false;
}
if (
ModKeyCtrlDown &&
keyCode == ctrlKeyCode &&
(
e.KeyboardState == GlobalKeyboardHook.KeyboardState.SysKeyUp ||
e.KeyboardState == GlobalKeyboardHook.KeyboardState.KeyUp
)
)
{
ModKeyCtrlDown = false;
}
}
else
{
var tModCtrl = ModKeyCtrlDown ? ModKeys.ModCtrl : 0;
var tModAlt = ModKeyAltDown ? ModKeys.ModAlt : 0;
var modKey = tModCtrl | tModAlt;
Debug.WriteLine(keyCode);
var hotkey = new HotkeyButton((Keys)keyCode, (int)modKey);
if (!HotkeyMap.ContainsKey(hotkey))
{
return;
}
if (
e.KeyboardState == GlobalKeyboardHook.KeyboardState.SysKeyDown ||
e.KeyboardState == GlobalKeyboardHook.KeyboardState.KeyUp
)
{
AudioPlayer.Instance.ProcessHotkey(HotkeyMap[hotkey]);
}
e.Handled = true;
}
}
