if (OS.GetUpdateRect(control.handle, lpRect, false)) {
if (OS.GetUpdateRect(handle, lpRect, false)) {
void refresh() {	RECT lpRect = new RECT();	if (OS.GetUpdateRect(control.handle, lpRect, false)) {		OS.ImageList_DragShowNolock(false);		OS.RedrawWindow(control.handle, lpRect, 0, OS.RDW_UPDATENOW | OS.RDW_INVALIDATE);		OS.ImageList_DragShowNolock(true);	}}