cloneShape context copy draw drawShape equals fromHandle getHandleCount getHandlePoint getHandleType getID getParent getPoint getPointCount getTag hasFillColor isKindOf load Null save setContext setContext setParent setTag shape shapec toHandle Type ~MgShape

getID() virtual int MgShape::getID ( ) const pure virtual 返回图形编号 在 MgShapeT< ShapeT, ContextT > , 以及 MgShapeExt 内被实现. 这是这个函数的调用关系图: