CLSIDFromProgID

Looks up a CLSID in the registry, given a ProgID.

HRESULT CLSIDFromProgID(
  LPCOLESTR lpszProgID,  //Pointer to the ProgID
  LPCLSID pclsid         //Pointer to the CLSID
);
 

Parameters

lpszProgID

[in] Pointer to the ProgID whose CLSID is requested.

pclsid

[out] Pointer to the retrieved CLSID on return.

Return Values

S_OK

The CLSID was retrieved successfully.

CO_E_CLASSSTRING

The registered CLSID for the ProgID is invalid.

REGDB_E_WRITEREGDB

An error occurred writing the CLSID to the registry. See "Remarks" below.

Remarks

Given a ProgID, CLSIDFromProgID looks up its associated CLSID in the registry. If the ProgID cannot be found in the registry, CLSIDFromProgID creates an OLE 1 CLSID for the ProgID and a CLSID entry in the registry. Because of the restrictions placed on OLE 1 CLSID values, CLSIDFromProgID and CLSIDFromString are the only two functions that can be used to generate a CLSID for an OLE 1 object.

QuickInfo

  Windows NT: Use version 3.1 or later.
  Windows: Use Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in objbase.h.
  Import Library: Included as a resource in ole32.dll.

See Also

ProgIDFromCLSID