ConsoleKeyInfo.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / ConsoleKeyInfo.cs / 1 / ConsoleKeyInfo.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*==============================================================================
** 
** Class: ConsoleKeyInfo 
**
** 
** Purpose: This value type represents a single key press, with modifier keys
**          like Alt, Control, and Shift.
**
** 
=============================================================================*/
 
namespace System { 
    [Serializable]
    public struct ConsoleKeyInfo { 
        private char _keyChar;
        private ConsoleKey _key;
        private ConsoleModifiers _mods;
 
        public ConsoleKeyInfo(char keyChar, ConsoleKey key, bool shift, bool alt, bool control) {
            // Limit ConsoleKey values to 0 to 255, but don't check whether the 
            // key is a valid value in our ConsoleKey enum.  There are a few 
            // values in that enum that we didn't define, and reserved keys
            // that might start showing up on keyboards in a few years. 
            if (((int)key) < 0 || ((int)key) > 255)
                throw new ArgumentOutOfRangeException("key", Environment.GetResourceString("ArgumentOutOfRange_ConsoleKey"));

            _keyChar = keyChar; 
            _key = key;
            _mods = 0; 
            if (shift) 
                _mods |= ConsoleModifiers.Shift;
            if (alt) 
                _mods |= ConsoleModifiers.Alt;
            if (control)
                _mods |= ConsoleModifiers.Control;
        } 

        public char KeyChar { 
            get { return _keyChar; } 
        }
 
        public ConsoleKey Key {
            get { return _key; }
        }
 
        public ConsoleModifiers Modifiers {
            get { return _mods; } 
        } 

        public override bool Equals(Object value) 
        {
            if (value is ConsoleKeyInfo)
                return Equals((ConsoleKeyInfo)value);
            else 
                return false;
        } 
 
        public bool Equals(ConsoleKeyInfo obj)
        { 
            return obj._keyChar == _keyChar && obj._key == _key && obj._mods == _mods;
        }

        public static bool operator ==(ConsoleKeyInfo a, ConsoleKeyInfo b) 
        {
            return a.Equals(b); 
        } 

        public static bool operator !=(ConsoleKeyInfo a, ConsoleKeyInfo b) 
        {
            return !(a == b);
        }
 
        public override int GetHashCode()
        { 
            return (int)_keyChar | (int) _mods; 
        }
    } 
}

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