C＃我想使用MSTSCLib在后台保存RDP屏幕的快照

问题描述

我正在一个项目中在后台运行多个MSTSCLib RDP连接。建立连接后，我需要保存每个RDP连接的屏幕截图。我想将这些图像收集到一个文件夹中而不向用户显示。我有下面的代码，但是我只能得到一张黑色的图片。我该如何解决这个问题？

public class RemoteDesktopApi
{
    private Thread _thread;

    public void connect(string _Ip,Int32 _Port,Int32 _witdh,Int32 _height,Int32 _timeout,string _User,string _Pass)
    {
        try
        {
            var rdpForm = new System.Windows.Forms.Form();
            var rdp = new AxmsTSCLib.AxmsRdpClient6NotSafeForScripting();
            var tcs = new taskcompletionsource<TaskScheduler>();
            
            rdp.Height = _height;
            rdp.Height = _height;
            rdp.Width = _witdh;
            rdpForm.Width = _witdh;
            rdpForm.Height = _height;
            rdpForm.Controls.Add(rdp);
            rdpForm.ShowInTaskbar = false;
            
            rdpForm.Show();
            
            rdpForm.Text = Convert.ToString(rdpForm.Handle);

            rdp.AdvancedSettings7.EnableWindowsKey = 1;
            rdp.AdvancedSettings7.disableCtrlAltDel = 1;
            rdp.AdvancedSettings7.allowBackgroundInput = 1;
            rdp.AdvancedSettings7.AcceleratorPassthrough = 1;
            rdp.AdvancedSettings7.BitmapPeristence = 1;
            rdp.AdvancedSettings7.Compress = 1;
            rdp.AdvancedSettings7.DoubleClickDetect = 1;
            rdp.AdvancedSettings7.PerformanceFlags = 0x10;
            // rdpForm.ControlBox = false;
            //rdpForm.WindowState = FormWindowState.Minimized;

             rdpForm.Left = -2000;
            //rdpForm.MinimizeBox
            MessageBox.Show(Convert.ToString(rdpForm.Handle));

            rdp.Server = _Ip;
            rdp.UserName =_User;
            rdp.AdvancedSettings7.ClearTextPassword = _Pass;

            rdp.Connect();

            _thread = new Thread(startArg =>
            {
                while (rdp.Connected.ToString() == "2")
                {
                    Thread.Sleep(1000);
                }

                Thread.Sleep(5000);
              
                Control ctl = rdp;
                Control originalParent = ctl.Parent;
                int oldLeft = ctl.Left;
                ctl.Left = 22222;  // way outside
                ctl.Parent = rdpForm;
                System.Drawing.Imaging.ImageFormat fmt = System.Drawing.Imaging.ImageFormat.Jpeg;

                if ("test.png".ToLower().EndsWith(".png"))  
                    fmt = System.Drawing.Imaging.ImageFormat.Png;

                using (Bitmap bmp = new Bitmap(ctl.ClientSize.Width,ctl.ClientSize.Height))
                {
                    ctl.DrawToBitmap(bmp,ctl.ClientRectangle);
                    bmp.Save("test.png",fmt);
                }

                ctl.Parent = originalParent;
                ctl.Left = oldLeft;
            
                rdpForm.Parent = originalParent;
                rdpForm.Left = oldLeft;

                rdp.disconnect();

                rdpForm.Close();
            });

            _thread.SetApartmentState(ApartmentState.STA);
            _thread.IsBackground = true;
            _thread.Start();
        }
        catch
        {
        }
    }
}

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。

小编邮箱:dio#foxmail.com (将#修改为@）