Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Core / CSharp / MS / Internal / Automation / InteropAutomationProvider.cs / 1 / InteropAutomationProvider.cs
using System; using System.Windows; using System.Windows.Automation.Peers; using System.Windows.Automation.Provider; using System.Security; using System.Security.Permissions; using MS.Internal.PresentationCore; namespace MS.Internal.Automation { [FriendAccessAllowed] // Built into Core, also used by Framework. internal class InteropAutomationProvider: IRawElementProviderFragmentRoot { #region Constructors internal InteropAutomationProvider(HostedWindowWrapper wrapper, AutomationPeer parent) { if (wrapper == null) { throw new ArgumentNullException("wrapper"); } if (parent == null) { throw new ArgumentNullException("parent"); } _wrapper = wrapper; _parent = parent; } #endregion Constructors #region IRawElementProviderSimple /// ProviderOptions IRawElementProviderSimple.ProviderOptions { get { return ProviderOptions.ServerSideProvider | ProviderOptions.OverrideProvider; } } /// object IRawElementProviderSimple.GetPatternProvider(int patternId) { return null; } /// object IRawElementProviderSimple.GetPropertyValue(int propertyId) { return null; } ////// Critical - Calls critical HostedWindowWrapper.Handle. /// TreatAsSafe - The reason is described in the following comment by BrendanM /// HostProviderFromHandle is a public method the APTCA assembly UIAutomationProvider.dll; /// ...\windows\AccessibleTech\longhorn\Automation\UIAutomationProvider\System\Windows\Automation\Provider\AutomationInteropProvider.cs /// This calls through to an internal P/Invoke layer... /// ...\windows\AccessibleTech\longhorn\Automation\UIAutomationProvider\MS\Internal\Automation\UiaCoreProviderApi.cs /// Which P/Invokes to unmanaged UIAutomationCore.dll's UiaHostProviderFromHwnd API, /// ...\windows\AccessibleTech\longhorn\Automation\UnmanagedCore\UIAutomationCoreAPI.cpp /// Which checks the HWND with IsWindow, and returns a new MiniHwndProxy instance: /// ...\windows\AccessibleTech\longhorn\Automation\UnmanagedCore\MiniHwndProxy.cpp /// /// MiniHwndProxy does implement the IRawElementProviderSimple interface, but all methods /// return NULL or empty values; it does not expose any values or functionality through this. /// This object is designed to be an opaque cookie to contain the HWND so that only UIACore /// itself can access it. UIACore accesses the HWND by QI'ing for a private GUID, and then /// casting the returnd value to MiniHwndProxy, and calling a nonvirtual method to access a /// _hwnd field. While managed PT code maybe able to do a QI, the only way it could extract /// the _hwnd field would be by using unmanaged code. /// IRawElementProviderSimple IRawElementProviderSimple.HostRawElementProvider { [SecurityCritical, SecurityTreatAsSafe] get { return AutomationInteropProvider.HostProviderFromHandle(_wrapper.Handle); } } #endregion IRawElementProviderSimple #region IRawElementProviderFragment ////// TreatAsSafe - The reason this method can be treated as safe is because it yeilds information /// about the parent provider which can even otherwise be obtained by using public APIs such /// as UIElement.OnCreateAutomationPeer and AutomationProvider.ProviderFromPeer. /// IRawElementProviderFragment IRawElementProviderFragment.Navigate(NavigateDirection direction) { if (direction == NavigateDirection.Parent) { return (IRawElementProviderFragment)_parent.ProviderFromPeer(_parent); } return null; } /// int [] IRawElementProviderFragment.GetRuntimeId() { return null; } /// Rect IRawElementProviderFragment.BoundingRectangle { get { return Rect.Empty; } } /// IRawElementProviderSimple [] IRawElementProviderFragment.GetEmbeddedFragmentRoots() { return null; } /// void IRawElementProviderFragment.SetFocus() { throw new NotSupportedException(); } /// IRawElementProviderFragmentRoot IRawElementProviderFragment.FragmentRoot { get { return null; } } #endregion IRawElementProviderFragment #region IRawElementProviderFragmentRoot /// IRawElementProviderFragment IRawElementProviderFragmentRoot.ElementProviderFromPoint( double x, double y ) { return null; } /// IRawElementProviderFragment IRawElementProviderFragmentRoot.GetFocus() { return null; } #endregion IRawElementProviderFragmentRoot #region Data private HostedWindowWrapper _wrapper; private AutomationPeer _parent; #endregion Data } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.Windows; using System.Windows.Automation.Peers; using System.Windows.Automation.Provider; using System.Security; using System.Security.Permissions; using MS.Internal.PresentationCore; namespace MS.Internal.Automation { [FriendAccessAllowed] // Built into Core, also used by Framework. internal class InteropAutomationProvider: IRawElementProviderFragmentRoot { #region Constructors internal InteropAutomationProvider(HostedWindowWrapper wrapper, AutomationPeer parent) { if (wrapper == null) { throw new ArgumentNullException("wrapper"); } if (parent == null) { throw new ArgumentNullException("parent"); } _wrapper = wrapper; _parent = parent; } #endregion Constructors #region IRawElementProviderSimple /// ProviderOptions IRawElementProviderSimple.ProviderOptions { get { return ProviderOptions.ServerSideProvider | ProviderOptions.OverrideProvider; } } /// object IRawElementProviderSimple.GetPatternProvider(int patternId) { return null; } /// object IRawElementProviderSimple.GetPropertyValue(int propertyId) { return null; } ////// Critical - Calls critical HostedWindowWrapper.Handle. /// TreatAsSafe - The reason is described in the following comment by BrendanM /// HostProviderFromHandle is a public method the APTCA assembly UIAutomationProvider.dll; /// ...\windows\AccessibleTech\longhorn\Automation\UIAutomationProvider\System\Windows\Automation\Provider\AutomationInteropProvider.cs /// This calls through to an internal P/Invoke layer... /// ...\windows\AccessibleTech\longhorn\Automation\UIAutomationProvider\MS\Internal\Automation\UiaCoreProviderApi.cs /// Which P/Invokes to unmanaged UIAutomationCore.dll's UiaHostProviderFromHwnd API, /// ...\windows\AccessibleTech\longhorn\Automation\UnmanagedCore\UIAutomationCoreAPI.cpp /// Which checks the HWND with IsWindow, and returns a new MiniHwndProxy instance: /// ...\windows\AccessibleTech\longhorn\Automation\UnmanagedCore\MiniHwndProxy.cpp /// /// MiniHwndProxy does implement the IRawElementProviderSimple interface, but all methods /// return NULL or empty values; it does not expose any values or functionality through this. /// This object is designed to be an opaque cookie to contain the HWND so that only UIACore /// itself can access it. UIACore accesses the HWND by QI'ing for a private GUID, and then /// casting the returnd value to MiniHwndProxy, and calling a nonvirtual method to access a /// _hwnd field. While managed PT code maybe able to do a QI, the only way it could extract /// the _hwnd field would be by using unmanaged code. /// IRawElementProviderSimple IRawElementProviderSimple.HostRawElementProvider { [SecurityCritical, SecurityTreatAsSafe] get { return AutomationInteropProvider.HostProviderFromHandle(_wrapper.Handle); } } #endregion IRawElementProviderSimple #region IRawElementProviderFragment ////// TreatAsSafe - The reason this method can be treated as safe is because it yeilds information /// about the parent provider which can even otherwise be obtained by using public APIs such /// as UIElement.OnCreateAutomationPeer and AutomationProvider.ProviderFromPeer. /// IRawElementProviderFragment IRawElementProviderFragment.Navigate(NavigateDirection direction) { if (direction == NavigateDirection.Parent) { return (IRawElementProviderFragment)_parent.ProviderFromPeer(_parent); } return null; } /// int [] IRawElementProviderFragment.GetRuntimeId() { return null; } /// Rect IRawElementProviderFragment.BoundingRectangle { get { return Rect.Empty; } } /// IRawElementProviderSimple [] IRawElementProviderFragment.GetEmbeddedFragmentRoots() { return null; } /// void IRawElementProviderFragment.SetFocus() { throw new NotSupportedException(); } /// IRawElementProviderFragmentRoot IRawElementProviderFragment.FragmentRoot { get { return null; } } #endregion IRawElementProviderFragment #region IRawElementProviderFragmentRoot /// IRawElementProviderFragment IRawElementProviderFragmentRoot.ElementProviderFromPoint( double x, double y ) { return null; } /// IRawElementProviderFragment IRawElementProviderFragmentRoot.GetFocus() { return null; } #endregion IRawElementProviderFragmentRoot #region Data private HostedWindowWrapper _wrapper; private AutomationPeer _parent; #endregion Data } } // 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
- FormConverter.cs
- messageonlyhwndwrapper.cs
- ExtensibleSyndicationObject.cs
- GridItem.cs
- ElementHost.cs
- CompositionTarget.cs
- ByteStorage.cs
- DeferrableContentConverter.cs
- UIPermission.cs
- recordstatescratchpad.cs
- MsmqIntegrationSecurityMode.cs
- SoapDocumentServiceAttribute.cs
- TextParagraphView.cs
- TcpProcessProtocolHandler.cs
- WorkflowHostingEndpoint.cs
- CodeGroup.cs
- TransformGroup.cs
- ReferentialConstraint.cs
- NameValueCollection.cs
- QuadraticBezierSegment.cs
- XmlNodeChangedEventArgs.cs
- EdgeProfileValidation.cs
- SoapInteropTypes.cs
- DynamicDiscoSearcher.cs
- GridViewColumnCollection.cs
- ObjectItemConventionAssemblyLoader.cs
- sqlstateclientmanager.cs
- RelationHandler.cs
- Operator.cs
- IDispatchConstantAttribute.cs
- ValidationHelpers.cs
- BitStream.cs
- PenLineJoinValidation.cs
- ConfigurationPropertyAttribute.cs
- ConnectionManagementElement.cs
- login.cs
- _LoggingObject.cs
- QueryReaderSettings.cs
- WCFBuildProvider.cs
- BorderGapMaskConverter.cs
- CompositeDesignerAccessibleObject.cs
- UseAttributeSetsAction.cs
- RecordsAffectedEventArgs.cs
- VectorKeyFrameCollection.cs
- MethodImplAttribute.cs
- BinHexDecoder.cs
- TemplateParser.cs
- AttachmentService.cs
- TraceFilter.cs
- GenerateScriptTypeAttribute.cs
- IndexedString.cs
- HtmlForm.cs
- ContextInformation.cs
- UnsafeNativeMethods.cs
- ParserExtension.cs
- PathSegment.cs
- ApplicationInterop.cs
- DocumentCollection.cs
- CustomAttributeFormatException.cs
- KeyValueSerializer.cs
- SQLByteStorage.cs
- RoutedEventConverter.cs
- BookmarkNameHelper.cs
- FloaterParaClient.cs
- XmlBufferReader.cs
- TextFormatterImp.cs
- DataListItemCollection.cs
- TrackingStringDictionary.cs
- XmlBinaryReader.cs
- BuiltInExpr.cs
- DataGridViewLinkCell.cs
- OletxTransactionManager.cs
- DBSchemaTable.cs
- CodeAssignStatement.cs
- DomainUpDown.cs
- ExtensibleClassFactory.cs
- FigureParagraph.cs
- SqlNodeAnnotation.cs
- QilXmlReader.cs
- DSASignatureFormatter.cs
- EncoderReplacementFallback.cs
- StreamResourceInfo.cs
- Compress.cs
- DrawingCollection.cs
- ClientSession.cs
- InvokeBase.cs
- LeaseManager.cs
- FrameworkPropertyMetadata.cs
- SettingsPropertyValueCollection.cs
- MethodCallTranslator.cs
- UrlMappingsModule.cs
- FunctionImportElement.cs
- Border.cs
- TextEditorParagraphs.cs
- WindowsGraphicsCacheManager.cs
- DataGridViewMethods.cs
- M3DUtil.cs
- TcpHostedTransportConfiguration.cs
- CodeNamespaceImportCollection.cs
- HopperCache.cs