How to programmatic disable C# Console Application's Quick Edit mode?

For those like me that like no-brainer code to copy/paste, here is the code inspired from the accepted answer:

using System;
using System.Runtime.InteropServices;

static class DisableConsoleQuickEdit {

   const uint ENABLE_QUICK_EDIT = 0x0040;

   // STD_INPUT_HANDLE (DWORD): -10 is the standard input device.
   const int STD_INPUT_HANDLE = -10;

   [DllImport("kernel32.dll", SetLastError = true)]
   static extern IntPtr GetStdHandle(int nStdHandle);

   [DllImport("kernel32.dll")]
   static extern bool GetConsoleMode(IntPtr hConsoleHandle, out uint lpMode);

   [DllImport("kernel32.dll")]
   static extern bool SetConsoleMode(IntPtr hConsoleHandle, uint dwMode);

   internal static bool Go() {

      IntPtr consoleHandle = GetStdHandle(STD_INPUT_HANDLE);

      // get current console mode
      uint consoleMode;
      if (!GetConsoleMode(consoleHandle, out consoleMode)) {
         // ERROR: Unable to get console mode.
         return false;
      }

      // Clear the quick edit bit in the mode flags
      consoleMode &= ~ENABLE_QUICK_EDIT;

      // set the new mode
      if (!SetConsoleMode(consoleHandle, consoleMode)) {
         // ERROR: Unable to set console mode
         return false;
      }

      return true;
   }
}

If you want to disable quick edit mode, you need to call GetConsoleMode to get the current mode. Then clear the bit that enables quick edit, and call SetConsoleMode. Assuming you have the managed prototypes for the unmanaged functions, you would write:

const int ENABLE_QUICK_EDIT = 0x0040;

IntPtr consoleHandle = GetConsoleWindow();
UInt32 consoleMode;

// get current console mode
if (!GetConsoleMode(consoleHandle, out consoleMode))
{
    // Error: Unable to get console mode.
    return;
}

// Clear the quick edit bit in the mode flags
mode &= ~ENABLE_QUICK_EDIT;

// set the new mode
if (!SetConsoleMode(consoleHandle, consoleMode))
{
    // ERROR: Unable to set console mode
}

If you want to disable mouse input, you want to clear the mouse input bit.

const int ENABLE_MOUSE_INPUT = 0x0010;

mode &= ~ENABLE_MOUSE_INPUT;

Having read above answers, GetConsoleWindow() can not be used. Instead GetStdHandle() must be used.

So here's a copy and paste class for enabling/disabling QuickEditMode. Call ConsoleWindow.QuickEditMode(false); to disable quick edit mode for the console window.

using System;
using System.Runtime.InteropServices;

public static class ConsoleWindow
{
    private static class NativeFunctions
    {
        public enum StdHandle : int
        {
            STD_INPUT_HANDLE = -10,
            STD_OUTPUT_HANDLE = -11,
            STD_ERROR_HANDLE = -12,
        }

        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern IntPtr GetStdHandle(int nStdHandle); //returns Handle

        public enum ConsoleMode : uint
        {
            ENABLE_ECHO_INPUT = 0x0004,
            ENABLE_EXTENDED_FLAGS = 0x0080,
            ENABLE_INSERT_MODE = 0x0020,
            ENABLE_LINE_INPUT = 0x0002,
            ENABLE_MOUSE_INPUT = 0x0010,
            ENABLE_PROCESSED_INPUT = 0x0001,
            ENABLE_QUICK_EDIT_MODE = 0x0040,
            ENABLE_WINDOW_INPUT = 0x0008,
            ENABLE_VIRTUAL_TERMINAL_INPUT = 0x0200,

            //screen buffer handle
            ENABLE_PROCESSED_OUTPUT = 0x0001,
            ENABLE_WRAP_AT_EOL_OUTPUT = 0x0002,
            ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x0004,
            DISABLE_NEWLINE_AUTO_RETURN = 0x0008,
            ENABLE_LVB_GRID_WORLDWIDE = 0x0010
        }

        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern bool GetConsoleMode(IntPtr hConsoleHandle, out uint lpMode);

        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern bool SetConsoleMode(IntPtr hConsoleHandle, uint dwMode);
    }

    public static void QuickEditMode(bool Enable)
    {
        //QuickEdit lets the user select text in the console window with the mouse, to copy to the windows clipboard.
        //But selecting text stops the console process (e.g. unzipping). This may not be always wanted.
        IntPtr consoleHandle = NativeFunctions.GetStdHandle((int)NativeFunctions.StdHandle.STD_INPUT_HANDLE);
        UInt32 consoleMode;

        NativeFunctions.GetConsoleMode(consoleHandle, out consoleMode);
        if (Enable)
            consoleMode |= ((uint)NativeFunctions.ConsoleMode.ENABLE_QUICK_EDIT_MODE);
        else
            consoleMode &= ~((uint)NativeFunctions.ConsoleMode.ENABLE_QUICK_EDIT_MODE);

        consoleMode |= ((uint)NativeFunctions.ConsoleMode.ENABLE_EXTENDED_FLAGS);

        NativeFunctions.SetConsoleMode(consoleHandle, consoleMode);
    }
}