winforms\Managed\System\WinForms\VisualStyles\VisualStyleRenderer.cs (2)
948lastHResult = SafeNativeMethods.HitTestThemeBackground( new HandleRef( this, Handle ), hdc, part, state, (int) options, new NativeMethods.COMRECT( backgroundRectangle ), NativeMethods.NullHandleRef, point, ref htCode );
991lastHResult = SafeNativeMethods.HitTestThemeBackground( new HandleRef( this, Handle ), hdc, part, state, (int) options, new NativeMethods.COMRECT( backgroundRectangle ), new HandleRef( this, hRgn ), point, ref htCode );