来自桌面c＃的截图

Question

我有一个用于从桌面获取屏幕截图的c＃代码

//Create a new bitmap.
            var bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width,
                                           Screen.PrimaryScreen.Bounds.Height,
                                           PixelFormat.Format32bppArgb);

            // Create a graphics object from the bitmap.
            var gfxScreenshot = Graphics.FromImage(bmpScreenshot);

            // Take the screenshot from the upper left corner to the right bottom corner.
            gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X,
                                        Screen.PrimaryScreen.Bounds.Y,
                                        0,
                                        0,
                                        Screen.PrimaryScreen.Bounds.Size,
                                        CopyPixelOperation.SourceCopy);

            // Save the screenshot to the specified path that the user has chosen.
            bmpScreenshot.Save("Screenshot.png", ImageFormat.Png);

此代码工作正常，但在运行需要＆＃34;管理员权限的程序时出现问题＆＃34;并显示此图片：

image

上面的代码不起作用并抛出异常：＆＃34;句柄无效＆＃34;

我该如何解决这个问题？