Function WinHttpGetProxyForUrlEx 

pub unsafe fn WinHttpGetProxyForUrlEx<P1>(
    hresolver: *const c_void,
    pcwszurl: P1,
    pautoproxyoptions: *const WINHTTP_AUTOPROXY_OPTIONS,
    pcontext: Option<usize>,
) -> u32
where
    P1: Param<PCWSTR>,