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
- AssemblyResolver.cs
- OdbcDataReader.cs
- TransactionTable.cs
- DurableEnlistmentState.cs
- NotFiniteNumberException.cs
- DataControlFieldCell.cs
- SqlCacheDependency.cs
- WebControlsSection.cs
- HMACRIPEMD160.cs
- ConnectionManagementSection.cs
- Utils.cs
- UnsafeNativeMethods.cs
- MdiWindowListStrip.cs
- ChannelSinkStacks.cs
- ScaleTransform3D.cs
- QueryComponents.cs
- NumberSubstitution.cs
- WebBrowserPermission.cs
- TagMapInfo.cs
- WebDisplayNameAttribute.cs
- ImageAutomationPeer.cs
- thaishape.cs
- TextDecorationCollection.cs
- StringToken.cs
- BinaryObjectReader.cs
- EventLogPermissionEntryCollection.cs
- CacheMemory.cs
- TracingConnectionInitiator.cs
- XmlSchemaSearchPattern.cs
- SHA1Managed.cs
- CombinedGeometry.cs
- ColorMatrix.cs
- UriParserTemplates.cs
- WebCodeGenerator.cs
- ObjectQueryProvider.cs
- TimeSpanSecondsConverter.cs
- DataGridViewCellStyleConverter.cs
- ToolboxDataAttribute.cs
- TransactionState.cs
- PictureBox.cs
- Codec.cs
- ADMembershipUser.cs
- SecurityTokenParameters.cs
- BindMarkupExtensionSerializer.cs
- Parser.cs
- selecteditemcollection.cs
- TransactionCache.cs
- ListItemConverter.cs
- WebPartVerbCollection.cs
- GeneralTransform3DCollection.cs
- CodeGenHelper.cs
- DbMetaDataColumnNames.cs
- StickyNoteHelper.cs
- X509Chain.cs
- GraphicsPathIterator.cs
- HtmlTableCellCollection.cs
- COM2PictureConverter.cs
- Material.cs
- MailMessageEventArgs.cs
- TripleDES.cs
- ScopedKnownTypes.cs
- ColumnHeader.cs
- DurableInstanceManager.cs
- ToolStripSplitStackLayout.cs
- Clipboard.cs
- Variant.cs
- WebPartVerbCollection.cs
- SchemaCollectionCompiler.cs
- Int16.cs
- BinarySerializer.cs
- FastEncoderStatics.cs
- XmlByteStreamReader.cs
- CodeSnippetStatement.cs
- EllipseGeometry.cs
- DataColumn.cs
- IISMapPath.cs
- ReachSerializableProperties.cs
- TrayIconDesigner.cs
- XmlUtil.cs
- VectorCollectionValueSerializer.cs
- OleDbInfoMessageEvent.cs
- InvalidDataContractException.cs
- SqlRecordBuffer.cs
- KeyValueInternalCollection.cs
- KeyboardEventArgs.cs
- InstanceCreationEditor.cs
- XmlSchemaSubstitutionGroup.cs
- RtfControlWordInfo.cs
- processwaithandle.cs
- ClaimTypeElementCollection.cs
- DbProviderFactory.cs
- ChangeDirector.cs
- AppearanceEditorPart.cs
- Point3DCollection.cs
- SslStream.cs
- StateBag.cs
- Double.cs
- JsonFormatWriterGenerator.cs
- Maps.cs
- CultureInfoConverter.cs