我的是Win 64位,在XX Window服务启动后希望截屏保存到指定文件夹,发现保存的是黑屏,在测试界面测试该方法,没问题,Coding如下：

        /// <summary>
        /// 截屏保存目录
        /// </summary>
        readonly string _screenPicUrl = AppDomain.CurrentDomain.BaseDirectory + @"Loveing\Pic";

        /// <summary>
        /// 截取屏幕
        /// </summary>
        private void PrinScreen()
        {
            try
            {
                Thread.Sleep(2000);
                //创建保存目录
                if (!Directory.Exists(_zipFolderUrl))
                    Directory.CreateDirectory(_zipFolderUrl);
                if (!Directory.Exists(_screenPicUrl))
                    Directory.CreateDirectory(_screenPicUrl);
                //获得当前屏幕的分辨率
                Screen scr = Screen.PrimaryScreen;
                Rectangle rc = scr.Bounds;
                int iWidth = rc.Width;
                int iHeight = rc.Height;
                //创建一个和屏幕一样大的Bitmap
                Image myImage = new Bitmap(iWidth, iHeight);
                //从一个继承自Image类的对象中创建Graphics对象
                Graphics g = Graphics.FromImage(myImage);
                //抓屏并拷贝到myimage里
                g.CopyFromScreen(new Point(0, 0), new Point(0, 0), new Size(iWidth, iHeight));
                string url = _screenPicUrl + @"\" + DateTime.Now.ToString("yyyymmddhhmmss") + ".jpg";
                //保存为文件
                myImage.Save(url);

            }
            catch (Exception ex)
            {
                WriteLog("截屏异常：\r\n" + ex);
            }
        }