pub unsafe extern "system" fn WinHttpOpenRequest(
    hconnect: *mut c_void,
    pwszverb: PCWSTR,
    pwszobjectname: PCWSTR,
    pwszversion: PCWSTR,
    pwszreferrer: PCWSTR,
    ppwszaccepttypes: *const PCWSTR,
    dwflags: WINHTTP_OPEN_REQUEST_FLAGS
) -> *mut c_void