API Reference > OdDb Classes > OdDbBlockTableRecord Class > OdDbBlockTableRecord Methods > OdDbBlockTableRecord::applyPartialUndo Method
OdDbBlockTableRecord::applyPartialUndo Method
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Parameters |
Description |
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OdDbDwgFiler* pFiler |
[in] A pointer to the *undo* filer with the partial *undo* information. |
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OdRxClass* pClass |
[in] A pointer to the OdRxClass object for the class that will *handle* the Undo. |
Notification function called each time an Undo operation is performed this object is using partial Undo.
An object indicates it's using the partial *undo* mechanism, if and only if it has set autoUndo false in all calls to assertWriteEnabled(). This member function must know which types of fields to scan, and must stop after reading what it needs. If the class type specified by pClassObj does not matches the class of this object, this member function must call the parent class's applyPartialUndo() and return whatever it returns. If it does match the class of this object, this member function must use pUndoFiler to read the *undo* data, then typically use this object's set() method.
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