Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / UIAutomation / UIAutomationClient / MS / Internal / Automation / WindowShowOrOpenTracker.cs / 1305600 / WindowShowOrOpenTracker.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Class used to track new UI appearing and make sure any events // are propogated to that new UI. // // History: // 06/17/2003 : BrendanM Ported to WCP // 11/20/2003 : Micw renamed NewUITracker.cs to WindowShowOrOpenTracker.cs // //--------------------------------------------------------------------------- using System; using System.Globalization; using System.Text; using System.Windows.Automation; using System.Diagnostics; using MS.Win32; namespace MS.Internal.Automation { // WindowShowOrOpenTracker - Class used to track new UI appearing and make sure any events // are propogated to that new UI. internal delegate void WindowShowOrOpenHandler( IntPtr hwnd, AutomationElement rawEl ); // Class used to track new UI appearing and make sure any events // are propogated to that new UI. internal class WindowShowOrOpenTracker : WinEventWrap { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors internal WindowShowOrOpenTracker(WindowShowOrOpenHandler newUIHandler) : base(new int[] {NativeMethods.EventObjectUIFragmentCreate, NativeMethods.EVENT_OBJECT_CREATE, NativeMethods.EVENT_OBJECT_SHOW}) { AddCallback(newUIHandler); } #endregion Constructors //------------------------------------------------------ // // Internal Methods // //----------------------------------------------------- #region Internal Methods internal override void WinEventProc(int eventId, IntPtr hwnd, int idObject, int idChild, uint eventTime) { // ignore any event not pertaining directly to the window if (idObject != UnsafeNativeMethods.OBJID_WINDOW) return; // Ignore if this is a bogus hwnd (shouldn't happen) if (hwnd == IntPtr.Zero) return; NativeMethods.HWND nativeHwnd = NativeMethods.HWND.Cast( hwnd ); // Ignore windows that have been destroyed if (! SafeNativeMethods.IsWindow( nativeHwnd )) return; // Ignore invisible windows (IsWindowVisible takes the hwnd ancestor // visibility into account) if (! SafeNativeMethods.IsWindowVisible( nativeHwnd )) return; if (eventId == NativeMethods.EVENT_OBJECT_CREATE) { // Ignore WCP hwnd creates; we get eventId EventObjectUIFragmentCreate for those // string str = ProxyManager.GetClassName(nativeHwnd); if (String.Compare(str, 0, _wcpClassName, 0, _wcpClassName.Length, StringComparison.OrdinalIgnoreCase) == 0) return; } AutomationElement rawEl = AutomationElement.FromHandle( hwnd ); // Do the notify. Note that this handler is used to notify client-side UIAutomation providers of windows // being destroyed or hidden. The delegate called here is itself protected by a lock. This delegate may // call out to proxies but also calls ClientEventManager.RaiseEventInThisClientOnly which properly // queues the actual callout to client code. object [] handlers = GetHandlers(); Debug.Assert(handlers.Length <= 1, "handlers.Length"); if (handlers.Length > 0) ((WindowShowOrOpenHandler)handlers[0])( hwnd, rawEl ); } #endregion Internal Methods //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields static readonly string _wcpClassName = "HwndWrapper"; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DuplexChannelFactory.cs
- AddressAccessDeniedException.cs
- BufferedGraphicsContext.cs
- MetadataAssemblyHelper.cs
- InternalSafeNativeMethods.cs
- StorageComplexTypeMapping.cs
- Site.cs
- ExpressionBuilder.cs
- WebPartRestoreVerb.cs
- InheritanceRules.cs
- OdbcConnectionHandle.cs
- QilUnary.cs
- ListBase.cs
- IxmlLineInfo.cs
- EventSetterHandlerConverter.cs
- GridProviderWrapper.cs
- RequestCacheManager.cs
- LocalServiceSecuritySettings.cs
- altserialization.cs
- InvariantComparer.cs
- ThreadSafeList.cs
- HTTPRemotingHandler.cs
- ListDictionary.cs
- FunctionNode.cs
- Literal.cs
- ItemMap.cs
- ValueUnavailableException.cs
- StylusButtonEventArgs.cs
- DataGridColumnHeaderCollection.cs
- AssemblyHash.cs
- CollectionViewSource.cs
- SplitterPanel.cs
- OperandQuery.cs
- AuthorizationRule.cs
- SyntaxCheck.cs
- MetadataWorkspace.cs
- DataGridViewRowConverter.cs
- GridViewUpdateEventArgs.cs
- WebPageTraceListener.cs
- MessageSecurityOverHttpElement.cs
- SQLSingleStorage.cs
- sortedlist.cs
- StorageTypeMapping.cs
- AsyncResult.cs
- SerTrace.cs
- _NTAuthentication.cs
- DropDownList.cs
- Comparer.cs
- Floater.cs
- SizeIndependentAnimationStorage.cs
- XmlSignificantWhitespace.cs
- Comparer.cs
- CodeThrowExceptionStatement.cs
- UniqueTransportManagerRegistration.cs
- RecognitionResult.cs
- DbConnectionPoolCounters.cs
- PathTooLongException.cs
- PenThreadPool.cs
- FragmentQuery.cs
- ConsumerConnectionPoint.cs
- AnimationTimeline.cs
- ContentDisposition.cs
- MulticastIPAddressInformationCollection.cs
- WS2007HttpBinding.cs
- ZoneButton.cs
- DesignSurfaceManager.cs
- ExtensibleSyndicationObject.cs
- DocumentSequenceHighlightLayer.cs
- XmlSchemaImport.cs
- XmlSchemaAttributeGroup.cs
- CodeGroup.cs
- KeyEvent.cs
- FillRuleValidation.cs
- ResetableIterator.cs
- StreamUpgradeAcceptor.cs
- CatalogPartChrome.cs
- AccessDataSource.cs
- HandlerWithFactory.cs
- FaultPropagationQuery.cs
- SecurityTokenParametersEnumerable.cs
- DirectoryNotFoundException.cs
- TypeUsageBuilder.cs
- XmlTextReader.cs
- Int64AnimationUsingKeyFrames.cs
- Html32TextWriter.cs
- UrlPath.cs
- XmlSchemaAny.cs
- _SafeNetHandles.cs
- PropertyTabAttribute.cs
- DashStyle.cs
- DataGridTablesFactory.cs
- InternalBufferOverflowException.cs
- RelationshipNavigation.cs
- StateBag.cs
- MessageQueueCriteria.cs
- EventSinkHelperWriter.cs
- RemoteWebConfigurationHostStream.cs
- XMLUtil.cs
- TextTreeText.cs
- PartDesigner.cs