CalloutQueueItem.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 / AccessibleTech / longhorn / Automation / UIAutomationClient / MS / Internal / Automation / CalloutQueueItem.cs / 1 / CalloutQueueItem.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// 
// Description: Class to create a queue on its own thread. 
//
// History: 
//  06/17/2003 : [....] Ported to WCP
//
//---------------------------------------------------------------------------
 
using System.Windows.Automation;
using System.Windows.Automation.Provider; 
using System; 
using System.Collections;
using System.ComponentModel; 
using MS.Internal.Automation;
using MS.Win32;

namespace MS.Internal.Automation 
{
    // Worker class used to queue callbacks that came from the PAW server.  Used by 
    // ClientEventManager in its event handler that recieves events from the server. 
    // These events are queued in order to get them off the servers UI thread.
    internal class CalloutQueueItem : QueueItem 
    {
        //-----------------------------------------------------
        //
        //  Constructors 
        //
        //----------------------------------------------------- 
 
        #region Constructors
 
        internal CalloutQueueItem(Delegate clientCallback, UiaCoreApi.UiaCacheResponse cacheResponse, AutomationEventArgs e, UiaCoreApi.UiaCacheRequest cacheRequest)
        {
            _clientCallback = clientCallback;
            _cacheResponse = cacheResponse; 
            _e = e;
            _cacheRequest = cacheRequest; 
        } 

        #endregion Constructors 


        //------------------------------------------------------
        // 
        //  Internal Methods
        // 
        //----------------------------------------------------- 

        #region Internal Methods 

        internal override void Process()
        {
            AutomationElement el = CacheHelper.BuildAutomationElementsFromResponse(_cacheRequest, _cacheResponse); 
            InvokeHandlers.InvokeClientHandler(_clientCallback, el, _e);
        } 
 
        #endregion Internal Methods
 

        //------------------------------------------------------
        //
        //  Private Fields 
        //
        //------------------------------------------------------ 
 
        #region Private Fields
 
        internal Delegate _clientCallback;                // the client's callback delegate
        internal UiaCoreApi.UiaCacheResponse _cacheResponse;      // prefetched data (possibly including the element and properties/patterns)
        internal UiaCoreApi.UiaCacheRequest _cacheRequest; // list of items to prefetch (also used when deserializing prefetched data)
        internal AutomationEventArgs _e;               // the event args for the callback 

        #endregion Private Fields 
    } 
}

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

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