Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / UIAutomation / UIAutomationClient / MS / Internal / Automation / WindowHideOrCloseTracker.cs / 1 / WindowHideOrCloseTracker.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: // 11/20/2003 : Micw Created // //--------------------------------------------------------------------------- using System; using System.Text; using System.Windows.Automation; using MS.Win32; using System.Diagnostics; namespace MS.Internal.Automation { // WindowHideOrCloseTracker - Class used to track new UI appearing and make sure any events // are propogated to that new UI. internal delegate void WindowHideOrCloseHandler( IntPtr hwnd, AutomationElement rawEl, int[] runtimeId ); // Class used to track new UI appearing and make sure any events // are propogated to that new UI. internal class WindowHideOrCloseTracker : WinEventWrap { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors internal WindowHideOrCloseTracker(WindowHideOrCloseHandler newUIHandler) : base(new int[] {NativeMethods.EVENT_OBJECT_DESTROY, NativeMethods.EVENT_OBJECT_HIDE}) { 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 ); // Purposefully including windows that have been destroyed (e.g. IsWindow will return // false here for EVENT_OBJECT_DESTROY) because we need that notification. if (eventId == NativeMethods.EVENT_OBJECT_HIDE && !SafeNativeMethods.IsWindow( nativeHwnd )) { return; } int[] runtimeId; AutomationElement rawEl; if (eventId == NativeMethods.EVENT_OBJECT_DESTROY) { // If the window has been destroyed just report the RuntimeId with the event. runtimeId = HwndProxyElementProvider.MakeRuntimeId( nativeHwnd ); rawEl = null; } else { // If the window is just being hidden then can create (and return as event src) a real element rawEl = AutomationElement.FromHandle( hwnd ); runtimeId = rawEl.GetRuntimeId(); } // 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 ) ( (WindowHideOrCloseHandler)handlers [0] )( hwnd, rawEl, runtimeId ); } #endregion Internal Methods //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields // no state #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // //// 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: // 11/20/2003 : Micw Created // //--------------------------------------------------------------------------- using System; using System.Text; using System.Windows.Automation; using MS.Win32; using System.Diagnostics; namespace MS.Internal.Automation { // WindowHideOrCloseTracker - Class used to track new UI appearing and make sure any events // are propogated to that new UI. internal delegate void WindowHideOrCloseHandler( IntPtr hwnd, AutomationElement rawEl, int[] runtimeId ); // Class used to track new UI appearing and make sure any events // are propogated to that new UI. internal class WindowHideOrCloseTracker : WinEventWrap { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors internal WindowHideOrCloseTracker(WindowHideOrCloseHandler newUIHandler) : base(new int[] {NativeMethods.EVENT_OBJECT_DESTROY, NativeMethods.EVENT_OBJECT_HIDE}) { 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 ); // Purposefully including windows that have been destroyed (e.g. IsWindow will return // false here for EVENT_OBJECT_DESTROY) because we need that notification. if (eventId == NativeMethods.EVENT_OBJECT_HIDE && !SafeNativeMethods.IsWindow( nativeHwnd )) { return; } int[] runtimeId; AutomationElement rawEl; if (eventId == NativeMethods.EVENT_OBJECT_DESTROY) { // If the window has been destroyed just report the RuntimeId with the event. runtimeId = HwndProxyElementProvider.MakeRuntimeId( nativeHwnd ); rawEl = null; } else { // If the window is just being hidden then can create (and return as event src) a real element rawEl = AutomationElement.FromHandle( hwnd ); runtimeId = rawEl.GetRuntimeId(); } // 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 ) ( (WindowHideOrCloseHandler)handlers [0] )( hwnd, rawEl, runtimeId ); } #endregion Internal Methods //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields // no state #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
- CompiledRegexRunner.cs
- PropertyInformationCollection.cs
- LoginView.cs
- Rijndael.cs
- TouchEventArgs.cs
- RowParagraph.cs
- WebPartUserCapability.cs
- XmlMapping.cs
- ConnectivityStatus.cs
- BitmapCacheBrush.cs
- ResXDataNode.cs
- AttachmentCollection.cs
- ADMembershipProvider.cs
- ClientProxyGenerator.cs
- mda.cs
- Page.cs
- ResourceDictionary.cs
- DelegatingConfigHost.cs
- BaseProcessor.cs
- XmlSerializationReader.cs
- HtmlInputCheckBox.cs
- TextRangeEditTables.cs
- RemoteDebugger.cs
- DynamicILGenerator.cs
- RadioButtonBaseAdapter.cs
- KnownTypesHelper.cs
- HierarchicalDataSourceConverter.cs
- SafeCoTaskMem.cs
- SoapRpcMethodAttribute.cs
- WorkflowServiceAttributesTypeConverter.cs
- MetadataProperty.cs
- DependencyObject.cs
- WebConvert.cs
- FormView.cs
- MimeWriter.cs
- StatusBarPanelClickEvent.cs
- DeriveBytes.cs
- InputLanguage.cs
- ActivityExecutionContext.cs
- WindowsClaimSet.cs
- Internal.cs
- EncryptedData.cs
- MimeBasePart.cs
- latinshape.cs
- HttpCacheParams.cs
- XmlIlVisitor.cs
- WindowsStatic.cs
- EditingMode.cs
- ResourceCategoryAttribute.cs
- AggregatePushdown.cs
- ContextBase.cs
- TriState.cs
- ReaderContextStackData.cs
- AffineTransform3D.cs
- StackBuilderSink.cs
- XhtmlBasicPageAdapter.cs
- SQLInt32Storage.cs
- IIS7WorkerRequest.cs
- UrlMappingCollection.cs
- URLString.cs
- CodeAttributeArgument.cs
- SqlUserDefinedAggregateAttribute.cs
- GridItem.cs
- InstanceData.cs
- OpenTypeLayout.cs
- BitVector32.cs
- PageWrapper.cs
- RowBinding.cs
- SqlCharStream.cs
- SmtpClient.cs
- WinEventQueueItem.cs
- TraceHandler.cs
- FaultPropagationQuery.cs
- JoinCqlBlock.cs
- SimpleExpression.cs
- LongCountAggregationOperator.cs
- SocketElement.cs
- SmiRequestExecutor.cs
- TextEvent.cs
- WCFBuildProvider.cs
- TextBoxLine.cs
- TemplateManager.cs
- ContentPresenter.cs
- WebScriptServiceHostFactory.cs
- MulticastNotSupportedException.cs
- LicFileLicenseProvider.cs
- ViewManagerAttribute.cs
- mansign.cs
- Vector3DAnimationUsingKeyFrames.cs
- CatalogZoneBase.cs
- TextEditorTyping.cs
- TextDecorationUnitValidation.cs
- ObjectViewListener.cs
- StringSource.cs
- PassportAuthenticationModule.cs
- ToolStripButton.cs
- DynamicQueryStringParameter.cs
- ProfessionalColors.cs
- SrgsDocument.cs
- ProtectedConfigurationProviderCollection.cs