IGH_UndoAction Methods | 
The IGH_UndoAction type exposes the following members.
| Name | Description | |
|---|---|---|
| Read | 
            This method is called whenever the instance is required to deserialize itself.
              (Inherited from GH_ISerializable.) | |
| Redo | 
 Redo the action stored in this record. 
   | |
| Undo | 
 Undo the action stored in this record. 
   | |
| Write | 
            This method is called whenever the instance is required to serialize itself.
              (Inherited from GH_ISerializable.) |