This function looks up a class identifier in the registry, given a programmatic identifier.
HRESULT CLSIDFromProgID(LPCOLESTR lpszProgID,LPCLSID pclsid);
Parameters
- lpszProgID
 [in] Long pointer to the ProgID whose class identifier is requested.
- pclsid
 [out] Pointer to the retrieved class identifier on return.
Return Values
One of the values described in the following table is returned.
| Value | Description | 
|---|---|
| S_OK | The class identifier was retrieved successfully. | 
| CO_E_CLASSSTRING | The registered class identifier for the ProgID is invalid. | 
| REGDB_E_WRITEREGDB | An error occurred writing the class identifier to the registry. | 
| REGDB_E_CLASSNOTREG | The class identifier for the ProgID cannot be found in the registry. | 
Remarks
Given a ProgID, CLSIDFromProgID looks up its associated class identifier in the registry.
To determine whether the platform supports this function, see Determining Supported COM APIs.
Requirements
OS Versions: Windows CE 2.10 and later.
Header: Objbase.h.
Link Library: Ole32.lib.
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