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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;
}
}
}
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