layout();
layout(false);
public void setTopRight(Control c) {	checkWidget();	if (c != null && c.getParent() != this) {		SWT.error(SWT.ERROR_INVALID_ARGUMENT);	}	if (this.topRight != null && !this.topRight.isDisposed()) {		Point size = this.topRight.getSize();		this.topRight.setLocation(OFFSCREEN - size.x, OFFSCREEN - size.y);	}	this.topRight = c;	layout();}