private void ExcludeRegion()
{
if (!ShouldExlcudeRegion)
{
return;
}
IntPtr hRegion = IntPtr.Zero;
try
{
hRegion = GetRegion();
if (hRegion != IntPtr.Zero)
{
Gdi32.SetWindowRgn(Handle, hRegion, false);
}
if (Region != IntPtr.Zero)
{
Gdi32.DeleteObject(Region);
}
Region = hRegion;
}
finally
{
if (hRegion != IntPtr.Zero)
{
Gdi32.DeleteObject(hRegion);
}
}
}
internal void Close()
{
if (Region != IntPtr.Zero)
{
Gdi32.SetWindowRgn(Handle, IntPtr.Zero, false);
Gdi32.DeleteObject(Region);
}
User32.CloseWindow(_handle);
User32.SetParent((int)_handle, 0);
User32.DestroyWindow(_handle);
}