protected virtual IntPtr FilterMessage(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
handled = false;
switch (msg)
{
//VS Does not behave like this, so commented out
case (int)WindowsMessage.WmActivate:
if (((int)wParam & 0xFFFF) == 0)
{
//if (lParam == this.GetParentWindowHandle())
//{
// Win32Helper.SetActiveWindow(_hwndSrc.Handle);
// handled = true;
//}
}
break;
case (int)WindowsMessage.WmExitsizemove:
UpdatePositionAndSizeOfPanes();
if (_dragService != null)
{
var mousePosition = this.TransformToDeviceDpi(NativeMethods.GetMousePosition());
_dragService.Drop(mousePosition, out var dropFlag);
_dragService = null;
SetIsDragging(false);
if (dropFlag)
{
InternalClose();
}
}
break;
case (int)WindowsMessage.WmMoving:
{
UpdateDragPosition();
}
break;
case (int)WindowsMessage.WmLbuttonup:
//set as handled right button click on title area (after showing context menu)
if (_dragService != null && Mouse.LeftButton == MouseButtonState.Released)
{
_dragService.Abort();
_dragService = null;
SetIsDragging(false);
}
break;
case (int)WindowsMessage.WmSyscommand:
IntPtr wMaximize = new IntPtr((int)Native.Platform.Enums.SystemCommands.ScMaximize);
IntPtr wRestore = new IntPtr((int)Native.Platform.Enums.SystemCommands.ScRestore);
if (wParam == wMaximize || wParam == wRestore)
{
UpdateMaximizedState(wParam == wMaximize);
}
break;
case (int)WindowsMessage.WmNclbuttondblclk:
if (msg != 24)
{
if (msg == (int)WindowsMessage.WmNclbuttondblclk)
{
WmNcLButtonDblClk(wParam, ref handled);
return(IntPtr.Zero);
}
}
else
{
WmShowWindow(hwnd, lParam);
return(IntPtr.Zero);
}
break;
}
return(IntPtr.Zero);
}
