Full Screen running of WINCE program, hide status bar operation

The implementation method is simple. You need to complete the following operations.

1. Set page properties to hide the title bar.

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

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

2. Use P/Invoke to call WIN32API to hide the status bar API call class:

 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;
     }

 

Call Method

   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;
        }

Usage:

Rectangle rectangle = Screen. PrimaryScreen. Bounds;
SetFullScreen (true, ref rectangle); // false indicates that the status bar is restored.

 

Add this method to the base class OnLoad method of the program form. The program is in the full screen status of WINCE when running the program. Call SetFullScreen (false, ref rectangle) in the exit method) it is used to restore the status bar after closing the program. In Windows, after the status bar is hidden, it is also hidden along with the input field. If the program needs to enable the soft keyboard, you need to find another method.