protected virtual IntPtr WndProc(IntPtr hWnd, uint message, IntPtr wParam, IntPtr lParam)
{
WM wmMsg = (WM)message;
switch (wmMsg)
{
case WM.NCCREATE:
{
NativeInstance = this;
_handle = hWnd;
PreCreated(hWnd);
break;
}
case WM.CREATE:
{
OnCreated(hWnd);
var createdEvent = new CreatedEventArgs(_handle, _handle);
HostCreated?.Invoke(this, createdEvent);
_isInitialized = true;
break;
}
case WM.ERASEBKGND:
return(new IntPtr(1));
case WM.NCHITTEST:
if (_options.WindowFrameless)
{
return((IntPtr)HT.CAPTION);
}
break;
case WM.MOVING:
case WM.MOVE:
{
HostMoving?.Invoke(this, new MovingEventArgs());
return(IntPtr.Zero);
}
case WM.SIZING:
case WM.SIZE:
{
var size = GetClientSize();
OnSizeChanged(size.Width, size.Height);
break;
}
case WM.GETMINMAXINFO:
{
if (HandleMinMaxSizes(lParam))
{
return(IntPtr.Zero);
}
break;
}
case WM.CLOSE:
{
if (_handle != IntPtr.Zero && _isInitialized)
{
HostClose?.Invoke(this, new CloseEventArgs());
}
DetachHooks();
DestroyWindow(_handle);
break;
}
case WM.DESTROY:
{
if (_options.UseOnlyCefMessageLoop)
{
Cef.QuitMessageLoop();
}
PostQuitMessage(0);
break;
}
default:
break;
}
return(DefWindowProcW(hWnd, wmMsg, wParam, lParam));
}
