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
- XmlSchemaRedefine.cs
- CriticalExceptions.cs
- JavaScriptObjectDeserializer.cs
- SystemIPGlobalStatistics.cs
- Point3DValueSerializer.cs
- ProcessProtocolHandler.cs
- MatrixUtil.cs
- ProfileModule.cs
- UTF32Encoding.cs
- XmlEntity.cs
- HostProtectionException.cs
- DataService.cs
- MonthChangedEventArgs.cs
- PingReply.cs
- SqlFlattener.cs
- ClientRuntimeConfig.cs
- CompilerCollection.cs
- InternalPermissions.cs
- Cloud.cs
- ServiceDefaults.cs
- GridViewSelectEventArgs.cs
- RegistrationServices.cs
- Mutex.cs
- SspiWrapper.cs
- BamlStream.cs
- XmlFormatExtensionAttribute.cs
- Int32.cs
- SqlDataSourceSummaryPanel.cs
- TraceContext.cs
- RangeBase.cs
- NameValueFileSectionHandler.cs
- DocumentGridContextMenu.cs
- SHA384Managed.cs
- HeaderedContentControl.cs
- HashHelper.cs
- BaseContextMenu.cs
- ConfigXmlElement.cs
- Int32Rect.cs
- ContentType.cs
- MasterPageCodeDomTreeGenerator.cs
- FacetValueContainer.cs
- TextRangeEdit.cs
- StreamGeometry.cs
- XmlDictionary.cs
- ExternalException.cs
- OdbcConnectionString.cs
- SimpleWebHandlerParser.cs
- Decimal.cs
- HttpRuntime.cs
- Control.cs
- ConfigXmlCDataSection.cs
- FormsAuthentication.cs
- XmlAttributeCollection.cs
- HttpStreams.cs
- SymbolType.cs
- RelationshipDetailsRow.cs
- PermissionSetEnumerator.cs
- UnsignedPublishLicense.cs
- safesecurityhelperavalon.cs
- ListView.cs
- wgx_commands.cs
- QueryableDataSourceEditData.cs
- NativeMethodsCLR.cs
- IntPtr.cs
- Button.cs
- ComponentChangingEvent.cs
- ClaimSet.cs
- XmlElementAttributes.cs
- DataServiceRequestException.cs
- XmlComment.cs
- AddInEnvironment.cs
- TrackBarRenderer.cs
- OutputScopeManager.cs
- FontTypeConverter.cs
- SqlProfileProvider.cs
- GB18030Encoding.cs
- TreeView.cs
- FileDialog.cs
- DoubleAnimation.cs
- PropagatorResult.cs
- SupportsPreviewControlAttribute.cs
- Region.cs
- XmlBinaryWriter.cs
- LastQueryOperator.cs
- ConnectionStringsExpressionBuilder.cs
- ComponentCommands.cs
- HostExecutionContextManager.cs
- httpapplicationstate.cs
- EncryptedXml.cs
- ConvertEvent.cs
- ReflectionTypeLoadException.cs
- ListControlDataBindingHandler.cs
- UpdateProgress.cs
- CollectionDataContractAttribute.cs
- ErrorItem.cs
- ApplicationFileCodeDomTreeGenerator.cs
- DetailsViewRowCollection.cs
- AnimatedTypeHelpers.cs
- SerialPinChanges.cs
- HttpHeaderCollection.cs