void HandleSelectExtend(w, event, params, num_params) Widget w; XEvent *event;			 String *params GCC_UNUSED; Cardinal *num_params GCC_UNUSED;
void HandleSelectExtend( Widget w, XEvent *event,		 String *params GCC_UNUSED, Cardinal *num_params GCC_UNUSED)
void HandleSelectExtend(w, event, params, num_params)Widget w;XEvent *event;			/* must be XMotionEvent */String *params GCC_UNUSED;Cardinal *num_params GCC_UNUSED;{	register TScreen *screen;	int row, col;	if (!IsXtermWidget(w))		return;	screen = &((XtermWidget)w)->screen;	screen->selection_time = event->xmotion.time;	switch (eventMode) {		case LEFTEXTENSION :		case RIGHTEXTENSION :			PointToRowCol (event->xmotion.y, event->xmotion.x, 				       &row, &col);			ExtendExtend (row, col);			break;		case NORMAL :			/* will get here if send_mouse_pos != 0 */		        break;	}}