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);
}
}
public KeyboardState(
Keyboard.VirtualKeyStates key = Keyboard.VirtualKeyStates.None,
Keyboard.ScanCodes scanCode = Keyboard.ScanCodes.None,
KeyStatus status = KeyStatus.None,
KeyModifiers modifiers = KeyModifiers.None,
TimeSpan time = new TimeSpan())
{
_Key = key;
_ScanCode = scanCode;
_Status = status;
_Modifiers = modifiers;
_Time = time;
}
public static IntPtr GetLParam(Keyboard.ScanCodes scanCode)
{
return((IntPtr)(((int)scanCode << 16) | 1));
}
public virtual void Up(Keyboard.VirtualKeyStates virtualKey, Keyboard.ScanCodes scanCode)
{
scanCode = GetClearScanCode(scanCode) | Keyboard.ScanCodes.Pressed | Keyboard.ScanCodes.Transition;
Message.PostMessage(WindowHandle, Message.WindowsMessage.KEYUP, (IntPtr)virtualKey, GetLParam(scanCode));
}
public static Keyboard.ScanCodes GetClearScanCode(Keyboard.ScanCodes scanCode)
{
return(scanCode & (Keyboard.ScanCodes.ScanCode | Keyboard.ScanCodes.Extended | Keyboard.ScanCodes.Context));
}
public virtual void Hold(Keyboard.VirtualKeyStates virtualKey, Keyboard.ScanCodes scanCode)
{
scanCode = GetClearScanCode(scanCode) | Keyboard.ScanCodes.Pressed;
Message.PostMessage(WindowHandle, Message.WindowsMessage.KEYDOWN, (IntPtr)virtualKey, GetLParam(scanCode));
}
public override void Down(Keyboard.VirtualKeyStates virtualKey, Keyboard.ScanCodes scanCode)
{
scanCode = GetClearScanCode(scanCode);
Message.PostMessage(WindowHandle, Message.WindowsMessage.SYSKEYDOWN, (IntPtr)virtualKey, GetLParam(scanCode));
}
