private IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
Key vkCode = Key.None;
IntPtr retVal = IntPtr.Zero;
KeyboardHookArgs args = null;
if (nCode >= 0)
{
vkCode = (Key)Marshal.ReadInt32(lParam);
args = new KeyboardHookArgs(vkCode, false);
if ((IntPtr)WM_KEYUP == wParam)
{
KeyUpEvent(args);
}
else if ((IntPtr)WM_KEYDOWN == wParam)
{
KeyDownEvent(args);
}
else if ((IntPtr)WM_SYSKEYUP == wParam)
{
Console.WriteLine($"SystemKey: {args.Key.ToString()}");
}
else
{
Console.WriteLine($"UnhandledKey: {args.Key.ToString()}");
}
}
if (true == args?.Handled)
{
retVal = (IntPtr)1;
}
else
{
retVal = CallNextHookEx(_hookID, nCode, wParam, lParam);
}
return(retVal);
}
private void KeyPressedEvent(KeyboardHookArgs args)
{
OnKeyPressed?.Invoke(this, args);
}
private void KeyDownEvent(KeyboardHookArgs args)
{
OnKeyDown?.Invoke(this, args);
}