private IntPtr KeyHookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
Hook.KBDLLHOOKSTRUCT hs = (Hook.KBDLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(Hook.KBDLLHOOKSTRUCT));
Message.WindowsMessage wm = (Message.WindowsMessage)wParam;
if (nCode >= 0 && (_key == 0 || _key == hs.vkCode))
{
Keyboard.VirtualKeyStates key = (Keyboard.VirtualKeyStates)hs.vkCode;
Keyboard.ScanCodes scanCode = (Keyboard.ScanCodes)hs.scanCode;
KeyboardState.KeyStatus status;
switch (wm)
{
case Message.WindowsMessage.KEYDOWN:
case Message.WindowsMessage.SYSKEYDOWN:
status = KeyboardState.KeyStatus.Down;
break;
case Message.WindowsMessage.KEYUP:
case Message.WindowsMessage.SYSKEYUP:
status = KeyboardState.KeyStatus.Up;
break;
default:
status = KeyboardState.KeyStatus.None;
break;
}
TimeSpan time = TimeSpan.FromMilliseconds(hs.time);
KeyboardState ks = KeyboardState.CreateCurrent(key, scanCode, status, time);
switch (ks.Status)
{
case KeyboardState.KeyStatus.Down:
KeyAny?.Invoke(this, ks);
KeyPress?.Invoke(this, ks);
KeyDown?.Invoke(this, ks);
break;
case KeyboardState.KeyStatus.Hold:
KeyAny?.Invoke(this, ks);
KeyPress?.Invoke(this, ks);
KeyHold?.Invoke(this, ks);
break;
case KeyboardState.KeyStatus.Up:
KeyAny?.Invoke(this, ks);
KeyUp?.Invoke(this, ks);
break;
default:
KeyAny?.Invoke(this, ks);
break;
}
if (CallNextHook is null || CallNextHook(this, ks))
{
return(Hook.CallNextHookEx(_kHHook, nCode, wParam, lParam));
}
else
{
return(_kHHook);
}
}
protected void KeyEvent(KeyCode Key)
{
if ((NativeMethods.GetAsyncKeyState(Key) & 0x1) != 0)
{
KeyDown?.Invoke(this);
}
if ((NativeMethods.GetAsyncKeyState(Key) & 0x8000) != 0)
{
KeyHold?.Invoke(this);
}
}
public override void Update(GameTime gameTime)
{
base.Update(gameTime);
if (!Enabled)
{
return;
}
var state = Keyboard.GetState();
var oldPressed = _previousState.GetPressedKeys();
var newPressed = state.GetPressedKeys();
for (var i = 0; i < oldPressed.Length; ++i)
{
if (Array.IndexOf(newPressed, oldPressed[i]) < 0)
{
var e = new KeyEventArgs(oldPressed[i], KeyState.Down, KeyState.Up);
KeyUp?.Invoke(this, e);
}
}
for (var i = 0; i < newPressed.Length; ++i)
{
if (Array.IndexOf(oldPressed, newPressed[i]) < 0)
{
var e = new KeyEventArgs(newPressed[i], KeyState.Up, KeyState.Down);
KeyDown?.Invoke(this, e);
}
else
{
var e = new KeyEventArgs(newPressed[i], KeyState.Down, KeyState.Down);
KeyHold?.Invoke(this, e);
}
}
_previousState = state;
}
