_removeObject abortTransaction addChildDocument addObject addObject afterRestore afterRestore commitTransaction create create deleteIDocument deleteSubPartOrProduct exportGraphviz exportObjects getAllDocument getAvailableRedoNames getAvailableRedos getAvailableUndos getDependentDocuments getDocCategory getDocumentByDocCategory getDocumentById getDocumentByName getDocumentId getDocumentObjects getDocumentObjectsHasName getDocumentType getErrorDescription getFileName getId getLinksTo getLocalPlacement getName getObject getObjectById getObserverDelegate getParentDocument getParentDocumentByType getPartMaps getPlacement getProgramVersion getPropertyAccessor getRefCount getRootDocument getRootObjects getSubDocument getTemplateDirName getTransactionID getTransientDirectoryName getUniqueObjectName hasPendingTransaction importFile importLinks isClosable isPerformingTransaction isSaved isTransactionEmpty loadFile locateObjs moveObject openTransaction paramterNewObject purgeTouched recomputeDocument removeAllObjects removeChildDocument removeObject save saveAs setActiveIDocument setDocCategory setDocumentLabel setDocumentName setFileName setId setLocalPlacement setObserverDelegate setPlacement setRootIDocument setUndoMode topologicalSort ~IDocument

getAvailableUndos() virtual int getAvailableUndos ( int  id = 0 ) const pure virtual 返回存储的Undo数 返回存储的Undo数，如果大于0，重做将有效。 参数 [in] id 表示事务的ID 返回 可用重做次数