public BitMap GetCaptcha()
{
string htmlResult;
using (var wc = new CookieAwareWebClient())
{
wc.SetCookieContainer(_cookies);
wc.Headers[HttpRequestHeader.UserAgent] = "Mozilla/4.0 (compatible; Synapse)";
wc.Headers[HttpRequestHeader.KeepAlive] = "300";
htmlResult = wc.DownloadString(urlBaseReceitaFederal + paginaPrincipal);
}
if (htmlResult.Length > 0)
{
var wc2 = new CookieAwareWebClient();
wc2.SetCookieContainer(_cookies);
wc2.Headers[HttpRequestHeader.UserAgent] = "Mozilla/4.0 (compatible; Synapse)";
wc.Headers[HttpRequestHeader.KeepAlive] = "300";
byte[] data = wc2.DownloadData(urlBaseReceitaFederal + paginaCaptcha);
return(new BitMap(new MemoryStream(data)));
}
return(null);
}
