如何以编程方式隐藏任务栏后使运行exe激活c＃

Question

我需要使用alt + f4关闭exe。 1.在运行exe时，用户可以通过按PrintScreen保存屏幕截图，此时任务栏被隐藏。 2.显示保存任务栏后。 3.保存后，用户需要按Alt + f4键关闭exe文件，但控件进入窗口并显示关机窗口

保存屏幕截图后，exe需要关闭

以下是实施的代码。

private void GuiPane_KeyUp(object sender, KeyEventArgs e)
{
 try
{
 if ((e.KeyCode == Keys.PrintScreen))
  {
    Taskbar.Hide();
    Bitmap bitmap;
    Rectangle bounds = this.Bounds;
    using ( bitmap = new Bitmap(bounds.Width, bounds.Height))
     {
     using (Graphics g = Graphics.FromImage(bitmap))
     {
     g.CopyFromScreen(new Point(bounds.Left, bounds.Top), Point.Empty, bounds.Size);
      }
     SaveImage(bitmap);
     }
     Taskbar.Show();
    }
  }
catch (Exception)
{
 throw;
 }
}

public class Taskbar

        {

                [DllImport("user32.dll")]
                private static extern int FindWindow(string className, string windowText);

                [DllImport("user32.dll")]
                private static extern int ShowWindow(int hwnd, int command);

                [DllImport("user32.dll")]
                public static extern int FindWindowEx(int parentHandle, int childAfter, string className, int windowTitle);

                [DllImport("user32.dll")]
                private static extern int GetDesktopWindow();

                private const int SW_HIDE = 0;
                private const int SW_SHOW = 1;

                protected static int Handle
                {
                    get
                    {
                        return FindWindow("Shell_TrayWnd", "");
                    }
                }

                protected static int HandleOfStartButton
                {
                    get
                    {
                        int handleOfDesktop = GetDesktopWindow();
                        int handleOfStartButton = FindWindowEx(handleOfDesktop, 0, "button", 0);
                        return handleOfStartButton;
                    }
                }

                private Taskbar()
                {
                    // hide ctor
                }

                public static void Show()
                {
                    ShowWindow(Handle, SW_SHOW);
                    ShowWindow(HandleOfStartButton, SW_SHOW);
                }

                public static void Hide()
                {
                    ShowWindow(Handle, SW_HIDE);
                    ShowWindow(HandleOfStartButton, SW_HIDE);
                }
            }