pub unsafe extern "system" fn OleConvertOLESTREAMToIStorageEx2(
    polestm: *const OLESTREAM,
    pstg: *mut c_void,
    pcfformat: *mut u16,
    plwwidth: *mut i32,
    plheight: *mut i32,
    pdwsize: *mut u32,
    pmedium: *mut STGMEDIUM,
    opt: u32,
    pvcallbackcontext: *const c_void,
    pqueryconvertolelinkcallback: OLESTREAMQUERYCONVERTOLELINKCALLBACK,
) -> HRESULT