Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / UIAutomation / UIAutomationClient / MS / Internal / Automation / WindowVisualStateTracker.cs / 1 / WindowVisualStateTracker.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Class used to track the visual appearance of Windows and make sure any events // are propogated to that new UI. // // History: // 01/05/2005 : Miw Created // //--------------------------------------------------------------------------- using System; using System.Windows.Automation; using MS.Win32; namespace MS.Internal.Automation { // Class used to track new UI appearing and make sure any events // are propogated to that new UI. internal class WindowVisualStateTracker : WinEventWrap { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors internal WindowVisualStateTracker() : base(new int[] { NativeMethods.EVENT_OBJECT_LOCATIONCHANGE }) { // Intentionally not setting the callback for the base WinEventWrap since the WinEventProc override // in this class calls RaiseEventInThisClientOnly to actually raise the event to the client. } #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; } OnStateChange(hwnd, idObject, idChild); } #endregion Internal Methods //------------------------------------------------------ // // Private Methods // //------------------------------------------------------ #region Private Methods private void OnStateChange(IntPtr hwnd, int idObject, int idChild) { NativeMethods.HWND nativeHwnd = NativeMethods.HWND.Cast(hwnd); // Ignore windows that have been destroyed if (!SafeNativeMethods.IsWindow(nativeHwnd)) { return; } AutomationElement rawEl = AutomationElement.FromHandle(hwnd); // Raise this event only for elements with the WindowPattern. object patternObject; if (!rawEl.TryGetCurrentPattern(WindowPattern.Pattern, out patternObject)) return; Object windowVisualState = rawEl.GetPatternPropertyValue(WindowPattern.WindowVisualStateProperty, false); // if has no state value just return if (!(windowVisualState is WindowVisualState)) { return; } WindowVisualState state = (WindowVisualState)windowVisualState; // Filter... avoid duplicate events if (hwnd == _lastHwnd && state == _lastState) { return; } AutomationPropertyChangedEventArgs e = new AutomationPropertyChangedEventArgs( WindowPattern.WindowVisualStateProperty, null, state); ClientEventManager.RaiseEventInThisClientOnly(AutomationElement.AutomationPropertyChangedEvent, rawEl, e); // save the last hwnd/rect for filtering out duplicates _lastHwnd = hwnd; _lastState = state; } #endregion Private Methods //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private WindowVisualState _lastState; // keep track of last visual state private IntPtr _lastHwnd; // and hwnd for dup checking #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 the visual appearance of Windows and make sure any events // are propogated to that new UI. // // History: // 01/05/2005 : Miw Created // //--------------------------------------------------------------------------- using System; using System.Windows.Automation; using MS.Win32; namespace MS.Internal.Automation { // Class used to track new UI appearing and make sure any events // are propogated to that new UI. internal class WindowVisualStateTracker : WinEventWrap { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors internal WindowVisualStateTracker() : base(new int[] { NativeMethods.EVENT_OBJECT_LOCATIONCHANGE }) { // Intentionally not setting the callback for the base WinEventWrap since the WinEventProc override // in this class calls RaiseEventInThisClientOnly to actually raise the event to the client. } #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; } OnStateChange(hwnd, idObject, idChild); } #endregion Internal Methods //------------------------------------------------------ // // Private Methods // //------------------------------------------------------ #region Private Methods private void OnStateChange(IntPtr hwnd, int idObject, int idChild) { NativeMethods.HWND nativeHwnd = NativeMethods.HWND.Cast(hwnd); // Ignore windows that have been destroyed if (!SafeNativeMethods.IsWindow(nativeHwnd)) { return; } AutomationElement rawEl = AutomationElement.FromHandle(hwnd); // Raise this event only for elements with the WindowPattern. object patternObject; if (!rawEl.TryGetCurrentPattern(WindowPattern.Pattern, out patternObject)) return; Object windowVisualState = rawEl.GetPatternPropertyValue(WindowPattern.WindowVisualStateProperty, false); // if has no state value just return if (!(windowVisualState is WindowVisualState)) { return; } WindowVisualState state = (WindowVisualState)windowVisualState; // Filter... avoid duplicate events if (hwnd == _lastHwnd && state == _lastState) { return; } AutomationPropertyChangedEventArgs e = new AutomationPropertyChangedEventArgs( WindowPattern.WindowVisualStateProperty, null, state); ClientEventManager.RaiseEventInThisClientOnly(AutomationElement.AutomationPropertyChangedEvent, rawEl, e); // save the last hwnd/rect for filtering out duplicates _lastHwnd = hwnd; _lastState = state; } #endregion Private Methods //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private WindowVisualState _lastState; // keep track of last visual state private IntPtr _lastHwnd; // and hwnd for dup checking #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
- Scene3D.cs
- StylusPlugInCollection.cs
- QueryLifecycle.cs
- ContextTokenTypeConverter.cs
- Visual.cs
- DayRenderEvent.cs
- EntityDataSourceView.cs
- SystemNetHelpers.cs
- webclient.cs
- CodeGenHelper.cs
- MimeReflector.cs
- TcpTransportBindingElement.cs
- XmlChoiceIdentifierAttribute.cs
- Update.cs
- hebrewshape.cs
- DurableOperationContext.cs
- RegistryExceptionHelper.cs
- UnmanagedBitmapWrapper.cs
- Script.cs
- SortExpressionBuilder.cs
- RelationshipFixer.cs
- LicFileLicenseProvider.cs
- CustomValidator.cs
- RulePatternOps.cs
- CallbackHandler.cs
- CatalogZoneDesigner.cs
- COM2IManagedPerPropertyBrowsingHandler.cs
- DSASignatureFormatter.cs
- ClosableStream.cs
- AudioFileOut.cs
- HtmlTextArea.cs
- COM2PropertyDescriptor.cs
- CssTextWriter.cs
- ToolboxBitmapAttribute.cs
- ToolStripSeparatorRenderEventArgs.cs
- EncodingTable.cs
- DbgUtil.cs
- CompositeTypefaceMetrics.cs
- HttpProfileGroupBase.cs
- ReflectTypeDescriptionProvider.cs
- Hashtable.cs
- ChtmlTextWriter.cs
- TextBoxLine.cs
- ReadOnlyPropertyMetadata.cs
- Path.cs
- EntityTransaction.cs
- XpsStructure.cs
- Operator.cs
- EdmScalarPropertyAttribute.cs
- Compiler.cs
- DefaultAutoFieldGenerator.cs
- ConfigurationLoaderException.cs
- UnsafeNativeMethodsMilCoreApi.cs
- PartialCachingAttribute.cs
- ListParagraph.cs
- RawStylusActions.cs
- HtmlUtf8RawTextWriter.cs
- UrlMappingCollection.cs
- SelectionItemPattern.cs
- EventsTab.cs
- Operand.cs
- InvalidWMPVersionException.cs
- PersonalizationProviderHelper.cs
- IISMapPath.cs
- StatusCommandUI.cs
- ProtocolsSection.cs
- SecurityDescriptor.cs
- RecordsAffectedEventArgs.cs
- Mappings.cs
- PageRequestManager.cs
- DesignerAutoFormatCollection.cs
- CommonGetThemePartSize.cs
- ObfuscateAssemblyAttribute.cs
- ConstructorExpr.cs
- mansign.cs
- NamespaceDecl.cs
- SqlParameterCollection.cs
- CaseCqlBlock.cs
- CodeTryCatchFinallyStatement.cs
- ComPlusTypeLoader.cs
- LinkDesigner.cs
- TraceSection.cs
- CaseInsensitiveComparer.cs
- DateTimeSerializationSection.cs
- PointLight.cs
- BaseTreeIterator.cs
- EntityDataSourceWizardForm.cs
- X509Certificate2Collection.cs
- EraserBehavior.cs
- VisualStateManager.cs
- DummyDataSource.cs
- ZipPackage.cs
- _RequestCacheProtocol.cs
- TryLoadRunnableWorkflowCommand.cs
- __TransparentProxy.cs
- AuthenticationService.cs
- invalidudtexception.cs
- SimpleRecyclingCache.cs
- Rectangle.cs
- CommonDialog.cs