Function DRMGetEnvironmentInfo 

pub unsafe fn DRMGetEnvironmentInfo<P1>(
    handle: u32,
    wszattribute: P1,
    peencoding: *mut DRMENCODINGTYPE,
    pcbuffer: *mut u32,
    pbbuffer: *mut u8,
) -> Result<()>
where
    P1: Param<PCWSTR>,