Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / MS / Internal / Automation / ValueProviderWrapper.cs / 1305600 / ValueProviderWrapper.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Value pattern provider wrapper for WCP // // History: // 07/21/2003 : BrendanM Ported to WCP // //--------------------------------------------------------------------------- using System; using System.Windows.Threading; using System.Windows.Media; using System.Windows.Automation; using System.Windows.Automation.Provider; using System.Windows.Automation.Peers; namespace MS.Internal.Automation { // Automation/WCP Wrapper class: Implements that UIAutomation I...Provider // interface, and calls through to a WCP AutomationPeer which implements the corresponding // I...Provider inteface. Marshalls the call from the RPC thread onto the // target AutomationPeer's context. // // Class has two major parts to it: // * Implementation of the I...Provider, which uses Dispatcher.Invoke // to call a private method (lives in second half of the class) via a delegate, // if necessary, packages any params into an object param. Return type of Invoke // must be cast from object to appropriate type. // * private methods - one for each interface entry point - which get called back // on the right context. These call through to the peer that's actually // implenting the I...Provider version of the interface. internal class ValueProviderWrapper: MarshalByRefObject, IValueProvider { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors private ValueProviderWrapper( AutomationPeer peer, IValueProvider iface ) { _peer = peer; _iface = iface; } #endregion Constructors //------------------------------------------------------ // // Interface IValueProvider // //----------------------------------------------------- #region Interface IValueProvider public void SetValue( string val ) { ElementUtil.Invoke( _peer, new DispatcherOperationCallback( SetValueInternal ), val ); } public string Value { get { return (string) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetValue ), null ); } } public bool IsReadOnly { get { return (bool) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetIsReadOnly ), null ); } } #endregion Interface IValueProvider //------------------------------------------------------ // // Internal Methods // //------------------------------------------------------ #region Internal Methods internal static object Wrap( AutomationPeer peer, object iface ) { return new ValueProviderWrapper( peer, (IValueProvider) iface ); } #endregion Internal Methods //----------------------------------------------------- // // Private Methods // //------------------------------------------------------ #region Private Methods private object SetValueInternal( object arg ) { _iface.SetValue( (string)arg ); return null; } private object GetValue( object unused ) { return _iface.Value; } private object GetIsReadOnly( object unused ) { return _iface.IsReadOnly; } #endregion Private Methods //----------------------------------------------------- // // Private Fields // //----------------------------------------------------- #region Private Fields private AutomationPeer _peer; private IValueProvider _iface; #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
- Queue.cs
- OptimizerPatterns.cs
- Point4DValueSerializer.cs
- RegexRunnerFactory.cs
- SimpleWorkerRequest.cs
- ResourceProperty.cs
- DictionaryKeyPropertyAttribute.cs
- MsdtcWrapper.cs
- Literal.cs
- EpmCustomContentDeSerializer.cs
- ReaderWriterLockSlim.cs
- UDPClient.cs
- SiteMapSection.cs
- XPathDescendantIterator.cs
- DataMisalignedException.cs
- Update.cs
- CompensationParticipant.cs
- EmbeddedMailObject.cs
- DbParameterCollection.cs
- FileDialogCustomPlace.cs
- ConnectionManagementElementCollection.cs
- FlowPanelDesigner.cs
- FolderNameEditor.cs
- TypeDelegator.cs
- IConvertible.cs
- HttpPostServerProtocol.cs
- QuadTree.cs
- BlockCollection.cs
- DesignerObject.cs
- SectionVisual.cs
- ScriptBehaviorDescriptor.cs
- RuntimeConfigurationRecord.cs
- AnnotationDocumentPaginator.cs
- DataObjectAttribute.cs
- FactoryGenerator.cs
- ServicePointManager.cs
- ExchangeUtilities.cs
- DataRowCollection.cs
- DocumentGridContextMenu.cs
- clipboard.cs
- brushes.cs
- GenerateTemporaryAssemblyTask.cs
- CryptoKeySecurity.cs
- EntityClientCacheKey.cs
- DataListComponentEditor.cs
- DiffuseMaterial.cs
- DecimalSumAggregationOperator.cs
- Trace.cs
- ThemeInfoAttribute.cs
- WebPartCloseVerb.cs
- MessagePropertyFilter.cs
- BaseTemplateCodeDomTreeGenerator.cs
- SignedXml.cs
- EUCJPEncoding.cs
- HttpCookiesSection.cs
- TagPrefixCollection.cs
- BaseDataList.cs
- XmlAttributeAttribute.cs
- FunctionUpdateCommand.cs
- AmbiguousMatchException.cs
- FixedDocumentSequencePaginator.cs
- SplitterPanel.cs
- HtmlTableRow.cs
- Compiler.cs
- DBSqlParserTable.cs
- WpfKnownType.cs
- sqlinternaltransaction.cs
- XpsDigitalSignature.cs
- NativeMethods.cs
- XmlAtomicValue.cs
- RuntimeHelpers.cs
- ReadOnlyDictionary.cs
- DataRecordInternal.cs
- securitycriticaldataformultiplegetandset.cs
- ComboBox.cs
- SplayTreeNode.cs
- TableAutomationPeer.cs
- Atom10FormatterFactory.cs
- CaseStatement.cs
- OutOfMemoryException.cs
- ClassData.cs
- RuleSettings.cs
- FormViewRow.cs
- RunInstallerAttribute.cs
- PrinterUnitConvert.cs
- PersonalizationDictionary.cs
- LicenseContext.cs
- ObjectPersistData.cs
- TdsParameterSetter.cs
- Decorator.cs
- NetworkAddressChange.cs
- TimeEnumHelper.cs
- ModuleConfigurationInfo.cs
- XmlDictionaryReader.cs
- PageThemeCodeDomTreeGenerator.cs
- handlecollector.cs
- ImageListImageEditor.cs
- Run.cs
- TextLineResult.cs
- ZeroOpNode.cs