Looks up a CLSID in the registry, given a ProgID.
Syntax
HRESULT CLSIDFromProgID(
__in LPCOLESTR lpszProgID,
__out LPCLSID lpclsid
);
Parameters
- lpszProgID [in]
-
A pointer to the ProgID whose CLSID is requested.
- lpclsid [out]
-
Receives a pointer to the retrieved CLSID on return.
Return Value
This function can return the following values.
| Return code | Description |
|---|
- 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.
Requirements
| Minimum supported client | Windows 2000 Professional |
|---|
| Minimum supported server | Windows 2000 Server |
|---|
| Header | Objbase.h |
|---|
| Library | Ole32.lib |
|---|
| DLL | Ole32.dll |
|---|
See Also
- CLSIDFromProgIDEx
- ProgIDFromCLSID
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Build date: 10/22/2009