MouseWheelEventArgs.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Input / MouseWheelEventArgs.cs / 1 / MouseWheelEventArgs.cs
                        

                        
                             
using System;
namespace System.Windows.Input
{
    ///  
    ///     The MouseWheelEventArgs describes the state of a Mouse wheel.
    ///  
    public class MouseWheelEventArgs : MouseEventArgs 
    {
        ///  
        ///     Initializes a new instance of the MouseWheelEventArgs class.
        /// 
        /// 
        ///     The Mouse device associated with this event. 
        /// 
        ///  
        ///     The time when the input occured. 
        /// 
        ///  
        ///     How much the mouse wheel turned.
        /// 
        public MouseWheelEventArgs(MouseDevice mouse, int timestamp, int delta) : base(mouse, timestamp)
        { 
            _delta = delta;
        } 
 
        /// 
        ///     Read-only access to the amount the mouse wheel turned. 
        /// 
        public int Delta
        {
            get {return _delta;} 
        }
 
        ///  
        ///     The mechanism used to call the type-specific handler on the
        ///     target. 
        /// 
        /// 
        ///     The generic handler to call in a type-specific way.
        ///  
        /// 
        ///     The target to call the handler on. 
        ///  
        protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget)
        { 
            MouseWheelEventHandler handler = (MouseWheelEventHandler) genericHandler;
            handler(genericTarget, this);
        }
 
        private static int _delta;
    } 
} 

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

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