Function OleCreateEmbeddingHelper 

pub unsafe extern "stdcall" fn OleCreateEmbeddingHelper(
    clsid: *const IID,
    pUnkOuter: LPUNKNOWN,
    flags: DWORD,
    pCF: LPCLASSFACTORY,
    riid: *const IID,
    lplpObj: *mut LPVOID,
) -> HRESULT