Applies to: desktop apps only
Looks up a CLSID in the registry, given a ProgID.
Syntax
HRESULT CLSIDFromProgID( __in LPCOLESTR lpszProgID, __out LPCLSID lpclsid );
Parameters
- lpszProgID [in]
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A pointer to the ProgID whose CLSID is requested.
- lpclsid [out]
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Receives a pointer to the retrieved CLSID on return.
Return value
This function can return the following values.
| Return code | Description |
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The CLSID was retrieved successfully. |
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The registered CLSID for the ProgID is invalid. |
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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
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Minimum supported client | Windows 2000 Professional |
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Minimum supported server | Windows 2000 Server |
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Header |
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Library |
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DLL |
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See also
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Build date: 3/7/2012