private void InvalidateWindowRegion()
{
if (DesignMode)
{
return;
}
if (m_dummyControlPaintEventHandler == null)
{
m_dummyControlPaintEventHandler = new PaintEventHandler(DummyControl_Paint);
}
DummyControl.Paint += m_dummyControlPaintEventHandler;
DummyControl.Invalidate();
}