_gsBack _gsFront _lastCenter _lastScale _mgview _view _zoomEnabled _zooming _zoomTimes checkZoomTimes cmdView copyGs deviceView draw dyndraw frontGraph GcBaseView graph isZoomEnabled isZooming onGesture onSize setZoomEnabled submitBackXform twoFingersMove xform ~GcBaseView

frontGraph() GiGraphics* GcBaseView::frontGraph ( ) 得到前端图形显示对象 这是这个函数的调用关系图: