Function vc6_sys::StgOpenPropStg

pub unsafe extern "stdcall" fn StgOpenPropStg(
    pUnk: *mut IUnknown,
    fmtid: *const FMTID,
    grfFlags: DWORD,
    dwReserved: DWORD,
    ppPropStg: *mut *mut IPropertyStorage
) -> HRESULT