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
- OleDbConnectionFactory.cs
- TimeSpanMinutesConverter.cs
- DoubleSumAggregationOperator.cs
- AnnotationAdorner.cs
- ScrollPatternIdentifiers.cs
- ImpersonateTokenRef.cs
- OutputCacheProfileCollection.cs
- TdsRecordBufferSetter.cs
- RadioButton.cs
- ReadOnlyCollectionBase.cs
- DispatcherEventArgs.cs
- ProcessModule.cs
- EntityStoreSchemaGenerator.cs
- InvalidAsynchronousStateException.cs
- InstanceCollisionException.cs
- OracleMonthSpan.cs
- CultureSpecificCharacterBufferRange.cs
- NotImplementedException.cs
- ClientApiGenerator.cs
- Pair.cs
- StatusBarItemAutomationPeer.cs
- DataGridDetailsPresenterAutomationPeer.cs
- DetailsViewAutoFormat.cs
- CollectionConverter.cs
- basemetadatamappingvisitor.cs
- CodeThrowExceptionStatement.cs
- StringSorter.cs
- ReadWriteObjectLock.cs
- TextChangedEventArgs.cs
- ResourceDictionary.cs
- ClientSettingsProvider.cs
- CharacterString.cs
- WindowClosedEventArgs.cs
- ExtensionWindowHeader.cs
- BinaryNegotiation.cs
- Knowncolors.cs
- FontDriver.cs
- StylusPlugin.cs
- XamlSerializerUtil.cs
- Char.cs
- AvTraceFormat.cs
- HttpModuleActionCollection.cs
- TransformerConfigurationWizardBase.cs
- NetworkInformationPermission.cs
- WmfPlaceableFileHeader.cs
- TrustLevelCollection.cs
- ToolStripAdornerWindowService.cs
- DataGridViewBand.cs
- BaseParaClient.cs
- localization.cs
- DocumentReference.cs
- PenCursorManager.cs
- BindingGraph.cs
- SequentialUshortCollection.cs
- CustomError.cs
- PaginationProgressEventArgs.cs
- FontFamily.cs
- AuthorizationSection.cs
- WebPartDisplayMode.cs
- ApplyImportsAction.cs
- SqlStatistics.cs
- RuleSettings.cs
- ProcessDesigner.cs
- followingquery.cs
- PageParser.cs
- FileDetails.cs
- Parsers.cs
- ToolStrip.cs
- WebWorkflowRole.cs
- HttpCapabilitiesSectionHandler.cs
- HostSecurityManager.cs
- FileLogRecordStream.cs
- XmlAttributeProperties.cs
- EdmValidator.cs
- RotationValidation.cs
- WebPartConnectionsEventArgs.cs
- SecuritySessionServerSettings.cs
- GridViewEditEventArgs.cs
- WebContext.cs
- TextFormatterContext.cs
- SqlSelectStatement.cs
- FontFaceLayoutInfo.cs
- rsa.cs
- ObjectDataSourceEventArgs.cs
- UIPropertyMetadata.cs
- TaskHelper.cs
- GroupQuery.cs
- AttributeUsageAttribute.cs
- RoleServiceManager.cs
- OpacityConverter.cs
- InputReferenceExpression.cs
- ModuleElement.cs
- ServiceInfoCollection.cs
- ThreadAttributes.cs
- WhitespaceSignificantCollectionAttribute.cs
- BoundsDrawingContextWalker.cs
- DtrList.cs
- ArgumentException.cs
- Translator.cs
- SQLGuid.cs