how can I disable windows key in c#?

Question

How can i disable or lock windows button?

Answer 1

Take a look here for some sample code http://tamaspiros.co.uk/2007/12/20/c-disable-ctrl-alt-del-alt-tab-alt-f4-start-menu-and-so-on/

Answer 2

You need a keyboard hook. Starts somewhere like this:

 hKeyboardHook = SetWindowsHookEx(WH_KEYBOARD, KeyboardProc, hInstance, 0);

and continue like this:

  LRESULT KeyboardProc(...)
  {
     if (Key == VK_SOMEKEY)
    return 1;             // Trap key


    return CallNextHookEx(...); // Let the OS handle it

  }

And for more detail: http://www.codeproject.com/KB/winsdk/AntonioWinLock.aspx

Answer 3

Assuming that you wish to disable the Windows key permenantly and not just when your code is in focus then you can do so by editing the registry as follows:

To disable: Add a new REG_BINARY value called "Scancode Map" to "HKEY_LOCAL_ MACHINE\System\CurrentControlSet\Control\Keyboard Layout" with a data value of "00000000000000000300000000005BE000005CE000000000"

To enable: Delete the "Scancode Map" value entirely from the registry.

Answer 4

    // *********************************************************************
    // [DCOM Productions]
    // [Copyright (C) DCOM Productions All rights reserved.]
    //  >> Courtesy of Dave Anderson, DCOM Productions
    // *********************************************************************

    /// <summary>
    /// Security routines related to the Windows Key on a standard personal computer Keyboard
    /// </summary>
    public static class WindowsKey {
        /// <summary>
        /// Disables the Windows Key
        /// </summary>
        /// <remarks>May require the current user to logoff or restart the system</remarks>
        public static void Disable() {
            RegistryKey key = null;
            try {
                key = Registry.LocalMachine.OpenSubKey("System\\CurrentControlSet\\Control\\Keyboard Layout", true);
                byte[] binary = new byte[] { 
                    0x00, 
                    0x00, 
                    0x00, 
                    0x00, 
                    0x00, 
                    0x00, 
                    0x00, 
                    0x00, 
                    0x03, 
                    0x00, 
                    0x00, 
                    0x00, 
                    0x00, 
                    0x00, 
                    0x5B, 
                    0xE0, 
                    0x00, 
                    0x00, 
                    0x5C, 
                    0xE0, 
                    0x00, 
                    0x00, 
                    0x00, 
                    0x00 
                };
                key.SetValue("Scancode Map", binary, RegistryValueKind.Binary);
            }
            catch (System.Exception ex) {
                Debug.Assert(false, ex.ToString());
            }
            finally {
                key.Close();
            }
        }

        /// <summary>
        /// Enables the Windows Key
        /// </summary>
        /// <remarks>May require the current user to logoff or restart the system</remarks>
        public static void Enable() {
            RegistryKey key = null;
            try {
                key = Registry.LocalMachine.OpenSubKey("System\\CurrentControlSet\\Control\\Keyboard Layout", true);
                key.DeleteValue("Scancode Map", true);
            }
            catch (System.Exception ex) {
                Debug.Assert(false, ex.ToString());
            }
            finally {
                key.Close();
            }
        }
    }