| Read-only | About Cal Sets | 
| Description | Returns a string containing the GUID identifying this Cal Set. Each Cal Set is assigned a GUID (global unique ID). GUIDs are used to retrieve and select Cal Sets on the VNA. Learn more about reading and writing Cal Data using COM. | 
| VB Syntax | value = CalSet.GetGuid | 
| Variable | (Type) - Description | 
| value | (string) - Variable to store the returned GUID | 
| CalSet | (object) - A Cal Set object | 
| Return Type | String | 
| Default | Not Applicable | 
| Examples | guid = CalSet.GetGuid 'Read | 
| C++ Syntax | HRESULT GetGUID( BSTR* pGUIDString); | 
| Interface | ICalSet |