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.
See Also