backStep cancel click Create draw getStep hitTest initialize isIntersectMode longPress m_boxsel m_delIds MgCmdErase Name release touchBegan touchEnded touchMoved

cancel() bool MgCmdErase::cancel ( const MgMotion *  sender ) privatevirtual 取消命令 实现了 MgCommand. 函数调用图: 这是这个函数的调用关系图: