Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / UIAutomation / UIAutomationClient / MS / Internal / Automation / BoundingRectTracker.cs / 1 / BoundingRectTracker.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Class used to send BoundingRect changes for hwnds // // History: // 06/17/2003 : BrendanM Ported to WCP // //--------------------------------------------------------------------------- using System; using System.Windows; using System.Windows.Automation; using System.Runtime.InteropServices; using System.ComponentModel; using MS.Win32; namespace MS.Internal.Automation { // BoundingRectTracker - Class used to send BoundingRect changes for hwnds internal class BoundingRectTracker : WinEventWrap { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors internal BoundingRectTracker() : base(new int[]{NativeMethods.EVENT_OBJECT_LOCATIONCHANGE, NativeMethods.EVENT_OBJECT_HIDE}) { // 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) { // Filter... send an event for hwnd only if ( hwnd == IntPtr.Zero || idObject != UnsafeNativeMethods.OBJID_WINDOW ) return; switch (eventId) { case NativeMethods.EVENT_OBJECT_HIDE: OnHide(hwnd, idObject, idChild); break; case NativeMethods.EVENT_OBJECT_LOCATIONCHANGE: OnLocationChange(hwnd, idObject, idChild); break; } } #endregion Internal Methods //------------------------------------------------------ // // Private Methods // //------------------------------------------------------ #region Private Methods private void OnHide(IntPtr hwnd, int idObject, int idChild) { // Clear last hwnd/rect variables (stop looking for dups) _lastHwnd = hwnd; _lastRect = _emptyRect; } private void OnLocationChange(IntPtr hwnd, int idObject, int idChild) { // Filter... send events for visible hwnds only if (!SafeNativeMethods.IsWindowVisible(NativeMethods.HWND.Cast( hwnd ))) return; HandleBoundingRectChange(hwnd); } private void HandleBoundingRectChange(IntPtr hwnd) { NativeMethods.HWND nativeHwnd = NativeMethods.HWND.Cast( hwnd ); NativeMethods.RECT rc32 = new NativeMethods.RECT(0,0,0,0); // if GetWindwRect fails, most likely the nativeHwnd is an invalid window, so just return. if (!Misc.GetWindowRect(nativeHwnd, out rc32)) { return; } // Filter... avoid duplicate events if (hwnd == _lastHwnd && Compare( rc32, _lastRect )) { return; } AutomationElement rawEl = AutomationElement.FromHandle(hwnd); // // AutomationPropertyChangedEventArgs e = new AutomationPropertyChangedEventArgs( AutomationElement.BoundingRectangleProperty, Rect.Empty, new Rect (rc32.left, rc32.top, rc32.right - rc32.left, rc32.bottom - rc32.top)); // ClientEventManager.RaiseEventInThisClientOnly(AutomationElement.AutomationPropertyChangedEvent, rawEl, e); // save the last hwnd/rect for filtering out duplicates _lastHwnd = hwnd; _lastRect = rc32; } // private static bool Compare( NativeMethods.RECT rc1, NativeMethods.RECT rc2 ) { return rc1.left == rc2.left && rc1.top == rc2.top && rc1.right == rc2.right && rc1.bottom == rc2.bottom; } #endregion Private Methods //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private static NativeMethods.RECT _emptyRect = new NativeMethods.RECT(0,0,0,0); private NativeMethods.RECT _lastRect; // keep track of last location 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 send BoundingRect changes for hwnds // // History: // 06/17/2003 : BrendanM Ported to WCP // //--------------------------------------------------------------------------- using System; using System.Windows; using System.Windows.Automation; using System.Runtime.InteropServices; using System.ComponentModel; using MS.Win32; namespace MS.Internal.Automation { // BoundingRectTracker - Class used to send BoundingRect changes for hwnds internal class BoundingRectTracker : WinEventWrap { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors internal BoundingRectTracker() : base(new int[]{NativeMethods.EVENT_OBJECT_LOCATIONCHANGE, NativeMethods.EVENT_OBJECT_HIDE}) { // 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) { // Filter... send an event for hwnd only if ( hwnd == IntPtr.Zero || idObject != UnsafeNativeMethods.OBJID_WINDOW ) return; switch (eventId) { case NativeMethods.EVENT_OBJECT_HIDE: OnHide(hwnd, idObject, idChild); break; case NativeMethods.EVENT_OBJECT_LOCATIONCHANGE: OnLocationChange(hwnd, idObject, idChild); break; } } #endregion Internal Methods //------------------------------------------------------ // // Private Methods // //------------------------------------------------------ #region Private Methods private void OnHide(IntPtr hwnd, int idObject, int idChild) { // Clear last hwnd/rect variables (stop looking for dups) _lastHwnd = hwnd; _lastRect = _emptyRect; } private void OnLocationChange(IntPtr hwnd, int idObject, int idChild) { // Filter... send events for visible hwnds only if (!SafeNativeMethods.IsWindowVisible(NativeMethods.HWND.Cast( hwnd ))) return; HandleBoundingRectChange(hwnd); } private void HandleBoundingRectChange(IntPtr hwnd) { NativeMethods.HWND nativeHwnd = NativeMethods.HWND.Cast( hwnd ); NativeMethods.RECT rc32 = new NativeMethods.RECT(0,0,0,0); // if GetWindwRect fails, most likely the nativeHwnd is an invalid window, so just return. if (!Misc.GetWindowRect(nativeHwnd, out rc32)) { return; } // Filter... avoid duplicate events if (hwnd == _lastHwnd && Compare( rc32, _lastRect )) { return; } AutomationElement rawEl = AutomationElement.FromHandle(hwnd); // // AutomationPropertyChangedEventArgs e = new AutomationPropertyChangedEventArgs( AutomationElement.BoundingRectangleProperty, Rect.Empty, new Rect (rc32.left, rc32.top, rc32.right - rc32.left, rc32.bottom - rc32.top)); // ClientEventManager.RaiseEventInThisClientOnly(AutomationElement.AutomationPropertyChangedEvent, rawEl, e); // save the last hwnd/rect for filtering out duplicates _lastHwnd = hwnd; _lastRect = rc32; } // private static bool Compare( NativeMethods.RECT rc1, NativeMethods.RECT rc2 ) { return rc1.left == rc2.left && rc1.top == rc2.top && rc1.right == rc2.right && rc1.bottom == rc2.bottom; } #endregion Private Methods //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private static NativeMethods.RECT _emptyRect = new NativeMethods.RECT(0,0,0,0); private NativeMethods.RECT _lastRect; // keep track of last location 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
- RegistryPermission.cs
- UIPropertyMetadata.cs
- SecurityIdentifierElementCollection.cs
- Size.cs
- HttpConfigurationContext.cs
- ReflectEventDescriptor.cs
- Single.cs
- codemethodreferenceexpression.cs
- CellIdBoolean.cs
- StringAnimationUsingKeyFrames.cs
- MouseBinding.cs
- SqlDataSource.cs
- FormViewRow.cs
- PathGradientBrush.cs
- FlowDocumentScrollViewer.cs
- TextEditorDragDrop.cs
- TableTextElementCollectionInternal.cs
- SpAudioStreamWrapper.cs
- HttpDictionary.cs
- TargetException.cs
- DrawingCollection.cs
- Drawing.cs
- Size.cs
- SqlXmlStorage.cs
- CallbackValidator.cs
- FunctionGenerator.cs
- CacheAxisQuery.cs
- DocumentXmlWriter.cs
- GeneratedContractType.cs
- WebBrowser.cs
- RankException.cs
- TextParagraph.cs
- DefaultProxySection.cs
- PassportAuthentication.cs
- DrawingImage.cs
- DynamicValidator.cs
- ApplicationSecurityInfo.cs
- Win32.cs
- SafeFreeMibTable.cs
- FrameworkElement.cs
- WindowsSecurityTokenAuthenticator.cs
- _ReceiveMessageOverlappedAsyncResult.cs
- XamlTemplateSerializer.cs
- DataExchangeServiceBinder.cs
- XMLSchema.cs
- ToolStripRenderer.cs
- SoapExtension.cs
- WebPartTransformerCollection.cs
- EditorZone.cs
- PolygonHotSpot.cs
- DrawingDrawingContext.cs
- EntityRecordInfo.cs
- WebServiceBindingAttribute.cs
- SafeRightsManagementQueryHandle.cs
- List.cs
- FixedSOMFixedBlock.cs
- SAPIEngineTypes.cs
- PartialCachingControl.cs
- Pair.cs
- EraserBehavior.cs
- DataGridViewRowStateChangedEventArgs.cs
- XmlSchemaValidator.cs
- ListViewGroupConverter.cs
- EastAsianLunisolarCalendar.cs
- DesignerGeometryHelper.cs
- FormViewActionList.cs
- Control.cs
- ParameterModifier.cs
- ColumnReorderedEventArgs.cs
- DesignerWidgets.cs
- Compiler.cs
- TabRenderer.cs
- HtmlContainerControl.cs
- FullTextBreakpoint.cs
- RawStylusInputReport.cs
- DataReaderContainer.cs
- PropertyMetadata.cs
- MissingMethodException.cs
- SchemaNotation.cs
- ContentValidator.cs
- MimeObjectFactory.cs
- SimpleModelProvider.cs
- IConvertible.cs
- User.cs
- SqlServer2KCompatibilityAnnotation.cs
- RequestResizeEvent.cs
- FloaterParaClient.cs
- FocusChangedEventArgs.cs
- ManagementObject.cs
- DataServiceClientException.cs
- StateItem.cs
- SeekStoryboard.cs
- IisTraceListener.cs
- PointUtil.cs
- DBDataPermission.cs
- TypedDataSourceCodeGenerator.cs
- MarkupCompilePass2.cs
- SchemaElementDecl.cs
- MessageProperties.cs
- FormViewModeEventArgs.cs