RawMouseInputReport.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 / wpf / src / Core / CSharp / System / Windows / Input / RawMouseInputReport.cs / 1305600 / RawMouseInputReport.cs
                        

                        
                            using System.Windows.Media; // 
using System.Security;
using System.Security.Permissions;
using MS.Internal;
using MS.Internal.PresentationCore; 
using MS.Win32;
using System; 
 
namespace System.Windows.Input
{ 
    /// 
    ///     The RawMouseInputReport class encapsulates the raw input provided
    ///     from a mouse.
    ///  
    /// 
    ///     It is important to note that the InputReport class only contains 
    ///     blittable types.  This is required so that the report can be 
    ///     marshalled across application domains.
    ///  
    [FriendAccessAllowed]
    internal class RawMouseInputReport : InputReport
    {
        ///  
        ///     Constructs ad instance of the RawMouseInputReport class.
        ///  
        ///  
        ///     The mode in which the input is being provided.
        ///  
        /// 
        ///     The time when the input occured.
        /// 
        ///  
        ///     The PresentationSource over which the mouse is moved.
        ///  
        ///  
        ///     The set of actions being reported.
        ///  
        /// 
        ///     If horizontal position being reported.
        /// 
        ///  
        ///     If vertical position being reported.
        ///  
        ///  
        ///     If wheel delta being reported.
        ///  
        /// 
        ///     Any extra information being provided along with the input.
        /// 
        ///  
        ///     Critical:This handles critical data in the form of PresentationSource and ExtraInformation
        ///     TreatAsSafe:There are demands on the  critical data(PresentationSource/ExtraInformation) 
        ///  
        [SecurityCritical, SecurityTreatAsSafe]
        public RawMouseInputReport( 
            InputMode mode,
            int timestamp,
            PresentationSource inputSource,
            RawMouseActions actions, 
            int x,
            int y, 
            int wheel, 
            IntPtr extraInformation) : base(inputSource, InputType.Mouse, mode, timestamp)
        { 
            if (!IsValidRawMouseActions(actions))
                throw new System.ComponentModel.InvalidEnumArgumentException("actions", (int)actions, typeof(RawMouseActions));

            /* we pass a null state from MouseDevice.PreProcessorInput, so null is valid value for state */ 
            _actions = actions;
            _x = x; 
            _y = y; 
            _wheel = wheel;
            _extraInformation = new SecurityCriticalData(extraInformation); 
        }

        /// 
        ///     Read-only access to the set of actions that were reported. 
        /// 
        public RawMouseActions Actions {get {return _actions;}} 
 
        /// 
        ///     Read-only access to the horizontal position that was reported. 
        /// 
        public int X {get {return _x;}}

        ///  
        ///     Read-only access to the vertical position that was reported.
        ///  
        public int Y {get {return _y;}} 

        ///  
        ///     Read-only access to the wheel delta that was reported.
        /// 
        public int Wheel {get {return _wheel;}}
 
        /// 
        ///     Read-only access to the extra information was provided along 
        ///     with the input. 
        /// 
        ///  
        ///     Critical: This data was got under an elevation. There exists a link demand to
        ///     block access. The critical exists to catch new callers too.
        /// 
        public IntPtr ExtraInformation 
        {
            [SecurityCritical] 
            get 
            {
                return _extraInformation.Value; 
            }
        }

        // IsValid Method for RawMouseActions. Relies on the enum being flags. 
        internal static bool IsValidRawMouseActions(RawMouseActions actions)
        { 
            if (actions == RawMouseActions.None) 
                return true;
 
            if ((( RawMouseActions.AttributesChanged | RawMouseActions.Activate | RawMouseActions.Deactivate |
                  RawMouseActions.RelativeMove | RawMouseActions.AbsoluteMove | RawMouseActions.VirtualDesktopMove |
                  RawMouseActions.Button1Press | RawMouseActions.Button1Release |
                  RawMouseActions.Button2Press | RawMouseActions.Button2Release | 
                  RawMouseActions.Button3Press | RawMouseActions.Button3Release |
                  RawMouseActions.Button4Press | RawMouseActions.Button4Release | 
                  RawMouseActions.Button5Press | RawMouseActions.Button5Release | 
                  RawMouseActions.VerticalWheelRotate | RawMouseActions.HorizontalWheelRotate |
                  RawMouseActions.CancelCapture | 
                  RawMouseActions.QueryCursor) & actions) == actions)
            {
                if (!(((RawMouseActions.Deactivate & actions) == actions && RawMouseActions.Deactivate != actions ) ||
                      (((RawMouseActions.Button1Press | RawMouseActions.Button1Release) & actions) == (RawMouseActions.Button1Press | RawMouseActions.Button1Release)) || 
                      (((RawMouseActions.Button2Press | RawMouseActions.Button2Release) & actions) == (RawMouseActions.Button2Press | RawMouseActions.Button2Release)) ||
                      (((RawMouseActions.Button3Press | RawMouseActions.Button3Release) & actions) == (RawMouseActions.Button3Press | RawMouseActions.Button3Release)) || 
                      (((RawMouseActions.Button4Press | RawMouseActions.Button4Release) & actions) == (RawMouseActions.Button4Press | RawMouseActions.Button4Release)) || 
                      (((RawMouseActions.Button5Press | RawMouseActions.Button5Release) & actions) == (RawMouseActions.Button5Press | RawMouseActions.Button5Release))))
                { 
                    return true;
                }
            }
            return false; 
        }
 
        private RawMouseActions _actions; 
        private int _x;
        private int _y; 
        private int _wheel;

        internal bool _isSynchronize; // Set from MouseDevice.Synchronize.
 
        /// 
        ///     Critical:This data was got under an elevation and is not safe to expose. 
        ///  
        private SecurityCriticalData _extraInformation;
    } 
}

// 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