The IGetClusterDataInfo interface is called by a Cluster Administrator extension to retrieve information about a cluster.
| GetClusterName | Retrieves the name of the current cluster. | 
| GetClusterHandle | Retrieves a handle to the current cluster. | 
| GetObjectCount | Retrieves a count of the number of selected objects. | 
To call the methods in the IGetClusterDataInfo interface, Cluster Administrator extensions use an interface pointer provided by Cluster Administrator. An extension can access this pointer by calling the IUnknown::QueryInterface method with the piData pointer passed to one of these methods:
IWEExtendPropertySheet::CreatePropertySheetPages
IWEExtendContextMenu::AddContextMenuItems
IWEExtendWizard::CreateWizardPages
IWEInvokeCommand::InvokeCommand
  Version: Use Windows NT Server Enterprise Edition 4.0.
  Windows CE: Unsupported.
  Header: Declared in cluadmex.h.