TrackDown(event) register XButtonEvent *event;
TrackDown(register XButtonEvent *event)
TrackDown(event)    register XButtonEvent *event;{	int startrow, startcol;	selectUnit = EvalSelectUnit(event->time, SELECTCHAR);	if (numberOfClicks > 1 ) {		PointToRowCol(event->y, event->x, &startrow, &startcol);		replyToEmacs = TRUE;		StartSelect(startrow, startcol);	} else {		waitingForTrackInfo = 1;		EditorButton((XButtonEvent *)event);	}}