Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Input / MouseButtonEventArgs.cs / 1 / MouseButtonEventArgs.cs
using System; namespace System.Windows.Input { ////// The MouseButtonEventArgs describes the state of a Mouse button. /// public class MouseButtonEventArgs : MouseEventArgs { ////// Initializes a new instance of the MouseButtonEventArgs class. /// /// /// The logical Mouse device associated with this event. /// /// /// The time when the input occured. /// /// /// The mouse button whose state is being described. /// public MouseButtonEventArgs(MouseDevice mouse, int timestamp, MouseButton button) : base(mouse, timestamp) { MouseButtonUtilities.Validate(button); _button = button; _count = 1; } ////// Initializes a new instance of the MouseButtonEventArgs class. /// /// /// The logical Mouse device associated with this event. /// /// /// The time when the input occured. /// /// /// The Mouse button whose state is being described. /// /// /// The stylus device that was involved with this event. /// public MouseButtonEventArgs(MouseDevice mouse, int timestamp, MouseButton button, StylusDevice stylusDevice) : base(mouse, timestamp, stylusDevice) { MouseButtonUtilities.Validate(button); _button = button; _count = 1; } ////// Read-only access to the button being described. /// public MouseButton ChangedButton { get {return _button;} } ////// Read-only access to the button state. /// public MouseButtonState ButtonState { get { MouseButtonState state = MouseButtonState.Released; switch(_button) { case MouseButton.Left: state = this.MouseDevice.LeftButton; break; case MouseButton.Right: state = this.MouseDevice.RightButton; break; case MouseButton.Middle: state = this.MouseDevice.MiddleButton; break; case MouseButton.XButton1: state = this.MouseDevice.XButton1; break; case MouseButton.XButton2: state = this.MouseDevice.XButton2; break; } return state; } } ////// Read access to the button click count. /// public int ClickCount { get {return _count;} internal set { _count = value;} } ////// 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) { MouseButtonEventHandler handler = (MouseButtonEventHandler) genericHandler; handler(genericTarget, this); } private MouseButton _button; private int _count; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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