ConsoleKeyInfo.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / ConsoleKeyInfo.cs / 1305376 / ConsoleKeyInfo.cs

                            using System.Diagnostics.Contracts; 
// ==++==
//
//   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"));
            Contract.EndContractBlock(); 

            _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; 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK