private IntPtr WindowProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam)
{
switch (msg)
{
#region keyboard
case 0x100: /*WM_KEYDOWN*/
{
var keyCode = wParam.ToInt32();
if (wParam.ToInt64() < 256)
{
Keyboard.Instance.lastKeyStates[keyCode] = Keyboard.Instance.keyStates[keyCode];
Keyboard.Instance.keyStates[keyCode] = KeyState.Down;
}
if (keyCode == (int)Key.Enter)
{
Ime.ImeBuffer.Enqueue('\n');
return(new IntPtr(1));
}
//DEBUG only begin
if (keyCode == (int)Key.Escape)
{
Application.Quit();
}
//DEBUG only end
return(IntPtr.Zero);
}
case 0x101: /*WM_KEYUP*/
{
var keyCode = wParam.ToInt32();
if (wParam.ToInt64() < 256)
{
Keyboard.Instance.lastKeyStates[keyCode] = Keyboard.Instance.keyStates[keyCode];
Keyboard.Instance.keyStates[keyCode] = KeyState.Up;
}
return(IntPtr.Zero);
}
#endregion
#region mouse
case 0x0020: //WM_SETCURSOR
{
if (wParam == hWnd)
{
//HTCLIENT is 1, see https://docs.microsoft.com/en-us/windows/win32/inputdev/wm-nchittest#return-value
if (unchecked ((short)lParam) == 1 /*HTCLIENT*/)
{
Win32Cursor.ChangeCursor(Mouse.Instance.Cursor);
return(TRUE);
}
}
break;
}
case 0x0201: //WM_LBUTTONDOWN
Mouse.Instance.LeftButtonState = KeyState.Down;
return(IntPtr.Zero);
case 0x0202: //WM_LBUTTONUP
Mouse.Instance.LeftButtonState = KeyState.Up;
return(IntPtr.Zero);
case 0x0203: //WM_LBUTTONDBLCLK
return(IntPtr.Zero);
case 0x0206: //WM_RBUTTONDBLCLK
return(IntPtr.Zero);
case 0x0204: //WM_RBUTTONDOWN
Mouse.Instance.RightButtonState = KeyState.Down;
return(IntPtr.Zero);
case 0x0205: //WM_RBUTTONUP
Mouse.Instance.RightButtonState = KeyState.Up;
return(IntPtr.Zero);
case 0x020A: //WM_MOUSEWHEEL
Mouse.Instance.MouseWheel = ((short)(wParam.ToInt64() >> 16));
return(IntPtr.Zero);
case 0x0200: //WM_MOUSEMOVE
var p = new POINT
{
X = unchecked ((short)lParam),
Y = unchecked ((short)((uint)lParam >> 16))
};
Mouse.Instance.Position = new Point(p.X, p.Y);
return(IntPtr.Zero);
#endregion
#region ime
//http://blog.csdn.net/shuilan0066/article/details/7679825
case 0x0286: /*WM_IME_CHAR*/
{
char c = (char)wParam;
if (c > 0 && !char.IsControl(c))
{
Ime.ImeBuffer.Enqueue(c);
}
return(IntPtr.Zero);
}
case 0x0102: /*WM_CHAR*/
{
char c = (char)wParam;
if (c > 0 && !char.IsControl(c))
{
Ime.ImeBuffer.Enqueue(c);
}
return(IntPtr.Zero);
}
#endregion
case 0x2: //WM_DESTROY
Close();
return(IntPtr.Zero);
}
return(DefWindowProc(hWnd, msg, wParam, lParam));
}
private static void DoChangeCursor(Cursor cursor)
{
Win32Cursor.ChangeCursor(cursor);
}