MouseEventArgs.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 / MouseEventArgs.cs / 1 / MouseEventArgs.cs
                        

                        
                            using System.Collections; 

using System;

namespace System.Windows.Input 
{
    ///  
    ///     The MouseEventArgs class provides access to the logical 
    ///     Mouse device for all derived event args.
    ///  
    public class MouseEventArgs : InputEventArgs
    {
        /// 
        ///     Initializes a new instance of the MouseEventArgs class. 
        /// 
        ///  
        ///     The logical Mouse device associated with this event. 
        /// 
        ///  
        ///     The time when the input occured.
        /// 
        public MouseEventArgs(MouseDevice mouse, int timestamp) : base(mouse, timestamp)
        { 
            if( mouse == null )
            { 
                throw new System.ArgumentNullException("mouse"); 
            }
            _stylusDevice = null; 
        }

        /// 
        ///     Initializes a new instance of the MouseEventArgs class. 
        /// 
        ///  
        ///     The logical Mouse device associated with this event. 
        /// 
        ///  
        ///     The time when the input occured.
        /// 
        /// 
        ///     The stylus device that was involved with this event. 
        /// 
        public MouseEventArgs(MouseDevice mouse, int timestamp, StylusDevice stylusDevice) : base(mouse, timestamp) 
        { 
            if( mouse == null )
            { 
                throw new System.ArgumentNullException("mouse");
            }
            _stylusDevice = stylusDevice;
        } 

        ///  
        ///     Read-only access to the mouse device associated with this 
        ///     event.
        ///  
        public MouseDevice MouseDevice
        {
            get {return (MouseDevice) this.Device;}
        } 

        ///  
        ///     Read-only access to the stylus Mouse associated with this event. 
        /// 
        public StylusDevice StylusDevice 
        {
            get {return _stylusDevice;}
        }
 
        /// 
        ///     Calculates the position of the mouse relative to 
        ///     a particular element. 
        /// 
        public Point GetPosition(IInputElement relativeTo) 
        {
            return this.MouseDevice.GetPosition(relativeTo);
        }
 
        /// 
        ///     The state of the left button. 
        ///  
        public MouseButtonState LeftButton
        { 
            get
            {
                return this.MouseDevice.LeftButton;
            } 
        }
 
        ///  
        ///     The state of the right button.
        ///  
        public MouseButtonState RightButton
        {
            get
            { 
                return this.MouseDevice.RightButton;
            } 
        } 

        ///  
        ///     The state of the middle button.
        /// 
        public MouseButtonState MiddleButton
        { 
            get
            { 
                return this.MouseDevice.MiddleButton; 
            }
        } 

        /// 
        ///     The state of the first extended button.
        ///  
        public MouseButtonState XButton1
        { 
            get 
            {
                return this.MouseDevice.XButton1; 
            }
        }

        ///  
        ///     The state of the second extended button.
        ///  
        public MouseButtonState XButton2 
        {
            get 
            {
                return this.MouseDevice.XButton2;
            }
        } 

        ///  
        ///     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) 
        {
            MouseEventHandler handler = (MouseEventHandler) genericHandler; 
            handler(genericTarget, this);
        }

        private StylusDevice _stylusDevice; 
    }
} 

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

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