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

hide() virtual void hide ( ) virtual 隐藏视图提供者 触发视图提供者的隐藏操作。