Function CoGetInstanceFromIStorage 

pub unsafe extern "C" fn CoGetInstanceFromIStorage(
    pServerInfo: *mut COSERVERINFO,
    pClsid: *mut CLSID,
    punkOuter: *mut IUnknown,
    dwClsCtx: DWORD,
    pstg: *mut IStorage,
    dwCount: DWORD,
    pResults: *mut MULTI_QI,
) -> HRESULT