Function CCODE::StgOpenPropStg

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