Stores the specified CLSID in a storage object.
WINOLEAPI WriteClassStg(
IStorage * pStg, //Points to the IStorage interface on the
// storage object
REFCLSID rclsid //Specifies the CLSID to be stored in the
// storage object
);
IStorage::SetClass method error return values.
The WriteClassStg function writes a CLSID to the specified storage object so it can be read by the ReadClassStg function. Container applications typically call this function before calling the IPersistStorage::Save method.
Windows CE: Passing into this function any invalid and, under some circumstances, NULL pointers will result in unexpected termination of the application. For more information about handling exceptions, see Programming Considerations.
Windows NT: Use version 3.1 or later.
Windows: Use Windows 95 or later.
Windows CE: Use version 2.0 or later.
Header: Declared in ole2.h.
Import Library: Included as a resource in ole32.dll.