Function winapi::um::winhttp::WinHttpSendRequest

pub unsafe extern "system" fn WinHttpSendRequest(
    hRequest: HINTERNET, 
    lpszHeaders: LPCWSTR, 
    dwHeadersLength: DWORD, 
    lpOptional: LPVOID, 
    dwOptionalLength: DWORD, 
    dwTotalLength: DWORD, 
    dwContext: DWORD_PTR
) -> BOOL