c#启动系统控制面板程序

c#启动系统控制面板程序

using System.Runtime.InteropServices; 

  [DllImport("kernel32.dll")]
  public static extern bool WinExec(string CmdLine,int uCmdShow);                 
  public const int SW_RESTORE=9;
  private void button1_Click(object sender, System.EventArgs e)
  {//启动控制面板
    WinExec("rundll32.exe shell32.dll,Control_RunDLL",SW_RESTORE);  
  }
  private void button2_Click(object sender, System.EventArgs e)
  {//启动显示属性\桌面
     WinExec("rundll32.exe shell32.dll,Control_RunDLL desk.cpl,,0",SW_RESTORE);
  }
  private void button3_Click(object sender, System.EventArgs e)
  {//启动显示属性\屏幕保护程序
    WinExec("rundll32.exe shell32.dll,Control_RunDLL desk.cpl,,1",SW_RESTORE); 
  }

  private void button4_Click(object sender, System.EventArgs e)
  {//设置显示属性\设置
     WinExec("rundll32.exe shell32.dll,Control_RunDLL desk.cpl,,3",SW_RESTORE);
  }

 ===============

  [DllImport("user32.dll")]
  public static extern bool SendMessage(IntPtr hwnd,int wMsg,int wParam,int lParam);                 
  public const int WM_SYSCOMMAND=0x0112;
  public const int SC_SCREENSAVE=0xF140;
  private void button1_Click(object sender, System.EventArgs e)
  {//启动屏幕保护程序   
   SendMessage(this.Handle,WM_SYSCOMMAND,SC_SCREENSAVE,0);
  }