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GPParameterInfo Class.
| Interfaces | Description | 
|---|---|
| IClone (esriSystem) | Provides access to members that control cloning of objects. | 
| IGPParameterInfo | Provides access to the properties/methods of the parameter information. | 
| IGPParameterInfo2 | Set and get parameter domain | 
| IPersistStream (esriSystem) | |
| IXMLSerialize (esriSystem) | Provides access to members that XML serialize and deserialize an object to/from XML. |