WINCE 程序运行全屏，隐藏状态栏操作

实现方式很简单，你需要完成如下操作。

1，设置页面的属性用来隐藏标题栏。

this.WindowState = System.Windows.Forms.FormWindowState.Maximized; 

this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; 

2，使用P/Invoke调用WIN32API进行隐藏状态栏 API调用类：

 public  class Win32
    {
            public const uint POWER_FORCE = 0x00001000u;
            public const uint POWER_STATE_RESET = 0x00800000u;        // reset state

            [DllImport("coredll.dll")]
            public static extern uint SetSystemPowerState([MarshalAs(UnmanagedType.LPWStr)]string psState, uint StateFlags, uint Options);

            [DllImport("coredll.dll", EntryPoint = "FindWindow")]

            public static extern int FindWindow(string lpWindowName, string lpClassName);
            [DllImport("coredll.dll", EntryPoint = "ShowWindow")]

            public static extern bool ShowWindow(IntPtr hwnd, int nCmdShow);
            [DllImport("coredll.dll", EntryPoint = "SystemParametersInfo")]
            public static extern int SystemParametersInfo(int uAction,int uParam,ref Rectangle lpvParam,int fuWinIni);

            public const int SPI_SETWORKAREA = 47;
            public const int SPI_GETWORKAREA = 48;

            public const int SW_HIDE = 0x00;
            public const int SW_SHOW = 0x0001;
            public const int SPIF_UPDATEINIFILE = 0x01;
     }

 调用方法 

   public static bool SetFullScreen(bool fullscreen, ref Rectangle rectOld)
        {
            int Hwnd = 0;
            Hwnd = Win32.FindWindow("HHTaskBar", null);
            if (Hwnd == 0) return false;
            if (fullscreen)
            {
                Win32.ShowWindow((IntPtr)Hwnd, Win32.SW_HIDE);
                Rectangle rectFull = Screen.PrimaryScreen.Bounds;
                Win32.SystemParametersInfo(Win32.SPI_GETWORKAREA, 0, ref rectOld, Win32.SPIF_UPDATEINIFILE);//get
                Win32.SystemParametersInfo(Win32.SPI_SETWORKAREA, 0, ref rectFull, Win32.SPIF_UPDATEINIFILE);//set
            }
            else
            {
                Win32.ShowWindow((IntPtr)Hwnd, Win32.SW_SHOW);
                Win32.SystemParametersInfo(Win32.SPI_SETWORKAREA, 0, ref rectOld, Win32.SPIF_UPDATEINIFILE);
            }
            return true;
        }

使用方法：

Rectangle rectangle = Screen.PrimaryScreen.Bounds; 
SetFullScreen(true, ref rectangle);//false为恢复状态栏

将此方法加在程序窗体的基类OnLoad方法里面，程序运行时处于WINCE全屏状态，在程序退出的方法中调用SetFullScreen(false, ref rectangle)用来在关闭程序后恢复状态栏。WINCE下，隐藏了状态栏之后连同输入法栏也会被隐藏，如果程序需要打开软键盘，那就需要另想办法了。