public void intersect(Region region) {
public void intersect(Rectangle rect) {
public void intersect(Region region) {	if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);	if (region == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);	if (region.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);	OS.SectRgn(handle, region.handle, handle);}