pub unsafe extern "system" fn DRMSetMetaData(
    hissuancelicense: u32,
    wszcontentid: PCWSTR,
    wszcontentidtype: PCWSTR,
    wszskuid: PCWSTR,
    wszskuidtype: PCWSTR,
    wszcontenttype: PCWSTR,
    wszcontentname: PCWSTR
) -> HRESULT