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
- TypeSchema.cs
- RedistVersionInfo.cs
- SafeHandles.cs
- TextParaClient.cs
- _ProxyChain.cs
- GenericTypeParameterBuilder.cs
- ThreadStateException.cs
- DnsPermission.cs
- PeerDefaultCustomResolverClient.cs
- CollectionCodeDomSerializer.cs
- BufferModesCollection.cs
- CorrelationValidator.cs
- TextParentUndoUnit.cs
- StringResourceManager.cs
- BaseParagraph.cs
- ImageKeyConverter.cs
- xmlsaver.cs
- XmlChildNodes.cs
- DesignerExtenders.cs
- ScrollProviderWrapper.cs
- WebEventTraceProvider.cs
- SqlLiftWhereClauses.cs
- ArithmeticException.cs
- ViewStateException.cs
- KerberosSecurityTokenProvider.cs
- FilePresentation.cs
- CharEnumerator.cs
- WebPartZoneDesigner.cs
- CheckBoxAutomationPeer.cs
- Converter.cs
- SupportingTokenDuplexChannel.cs
- DataBoundControlHelper.cs
- PackageDigitalSignatureManager.cs
- DecoderNLS.cs
- BinaryObjectInfo.cs
- SqlCharStream.cs
- TemplateControlCodeDomTreeGenerator.cs
- RegexCharClass.cs
- ArglessEventHandlerProxy.cs
- SQLBinary.cs
- WebEventCodes.cs
- InitializationEventAttribute.cs
- SerialStream.cs
- PersonalizationDictionary.cs
- StringArrayConverter.cs
- CoreSwitches.cs
- TraceLog.cs
- Completion.cs
- InitializationEventAttribute.cs
- TextRenderer.cs
- IdleTimeoutMonitor.cs
- TriggerAction.cs
- ProgressBarRenderer.cs
- TypefaceMap.cs
- TempEnvironment.cs
- BamlVersionHeader.cs
- UnsafePeerToPeerMethods.cs
- MimeMapping.cs
- ValidationErrorCollection.cs
- TextEditorCopyPaste.cs
- ComponentChangedEvent.cs
- AvTraceDetails.cs
- MissingManifestResourceException.cs
- Translator.cs
- DataControlLinkButton.cs
- BasePattern.cs
- DesignerVerbCollection.cs
- XmlSchemaObjectCollection.cs
- Intellisense.cs
- SmiMetaData.cs
- HtmlTextBoxAdapter.cs
- Point3DAnimationBase.cs
- ErrorProvider.cs
- ConnectionStringSettings.cs
- TypeValidationEventArgs.cs
- DesigntimeLicenseContextSerializer.cs
- ProfessionalColors.cs
- ReadOnlyNameValueCollection.cs
- DbConnectionPoolIdentity.cs
- SmuggledIUnknown.cs
- MonikerBuilder.cs
- GetPageCompletedEventArgs.cs
- DetailsViewDeletedEventArgs.cs
- EntityDataSourceMemberPath.cs
- CodeSnippetTypeMember.cs
- AxisAngleRotation3D.cs
- VectorConverter.cs
- ItemType.cs
- CacheAxisQuery.cs
- BaseCollection.cs
- Version.cs
- HostingEnvironment.cs
- SystemPens.cs
- Stylus.cs
- HttpContextServiceHost.cs
- DoubleConverter.cs
- JsonReader.cs
- FormViewDeletedEventArgs.cs
- Timer.cs
- ToolboxItemCollection.cs