ReadClassStg
A version of this page is also available for
4/8/2010
This function reads the CLSID previously written to a storage object with the WriteClassStg.
Syntax
WINOLEAPI ReadClassStg(
IStorage* pStg,
CLSID* pclsid
);
Parameters
- pStg
[in] Pointer to the IStorage interface on the storage object containing the CLSID to be retrieved.
- pclsid
[out] Pointer to where the CLSID is written. Can return CLSID_NULL.
Return Value
This function supports the standard return value E_OUTOFMEMORY. The return value S_OK means that the CLSID was returned successfully.
This function also returns any of the error values returned by the IStorage::Stat method.
Remarks
Passing into this function any invalid and, under some circumstances, NULL pointers results in unexpected termination of the application.
This function is a helper function that calls the IStorage::Stat method and retrieves the CLSID previously written to the storage object with a call to WriteClassStg from the STATSTG structure.
To determine whether the platform supports this function, see Determining Supported COM APIs.
Requirements
| Header | ole2.h |
| Library | ole32.lib |
| Windows Embedded CE | Windows CE 2.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |