unigui图形验证码

unigui图形验证码

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procedure TMainForm.UniButton1Click(Sender: TObject); var   url: SockString;   serial: TynSerial;   i: Integer;   ms: TMemoryStream; begin   serial := TynSerial.Create;   ms := TMemoryStream.Create;   try     url := 'verifycode';     i := FHttp.Post(url, '', 'text/plain; charset=UTF-8');     if i = 200 then     begin       serial.Text := FHttp.Content;       UniEdit1.Text := serial.ReadString('code');       serial.ReadStream('image', ms);       ms.Position := 0;       UniImage1.LoadFromStream(ms);     end     else       ShowMessage(i.ToString + ' error');   finally     serial.Free;     ms.Free;   end; end;