_pAttachObject addExtensionSection canDelete claimChildren delegateName doubleClicked finishRestoring getAttachIDocumentObject getMDIView getViewProvider hide m_pViewProviewr setAttach setViewProvider show viewProviderCreating viewProviderIsBeingDestructed ViewProviderObserverDelegate viewProviderOnChange ~ViewProviderObserverDelegate

viewProviderCreating() virtual void viewProviderCreating ( ) virtual 视图提供者开始创建时回调 在 ViewProvider 构造过程中触发，可执行自定义初始化。