Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / MS / Internal / Automation / RangeValueProviderWrapper.cs / 1305600 / RangeValueProviderWrapper.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Range 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 RangeValueProviderWrapper: MarshalByRefObject, IRangeValueProvider { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors private RangeValueProviderWrapper( AutomationPeer peer, IRangeValueProvider iface ) { _peer = peer; _iface = iface; } #endregion Constructors //------------------------------------------------------ // // Interface IRangeValueProvider // //----------------------------------------------------- #region Interface IRangeValueProvider public void SetValue( double val ) { ElementUtil.Invoke( _peer, new DispatcherOperationCallback( SetValueInternal ), val ); } public double Value { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetValue ), null ); } } public bool IsReadOnly { get { return (bool) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetIsReadOnly ), null ); } } public double Maximum { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetMaximum ), null ); } } public double Minimum { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetMinimum ), null ); } } public double LargeChange { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetLargeChange ), null ); } } public double SmallChange { get { return (double) ElementUtil.Invoke( _peer, new DispatcherOperationCallback( GetSmallChange ), null ); } } #endregion Interface IRangeValueProvider //------------------------------------------------------ // // Internal Methods // //------------------------------------------------------ #region Internal Methods internal static object Wrap( AutomationPeer peer, object iface ) { return new RangeValueProviderWrapper( peer, (IRangeValueProvider) iface ); } #endregion Internal Methods //----------------------------------------------------- // // Private Methods // //------------------------------------------------------ #region Private Methods private object SetValueInternal( object arg ) { _iface.SetValue( (double)arg ); return null; } private object GetValue( object unused ) { return _iface.Value; } private object GetIsReadOnly( object unused ) { return _iface.IsReadOnly; } private object GetMaximum( object unused ) { return _iface.Maximum; } private object GetMinimum( object unused ) { return _iface.Minimum; } private object GetLargeChange( object unused ) { return _iface.LargeChange; } private object GetSmallChange( object unused ) { return _iface.SmallChange; } #endregion Private Methods //----------------------------------------------------- // // Private Fields // //----------------------------------------------------- #region Private Fields private AutomationPeer _peer; private IRangeValueProvider _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
- BStrWrapper.cs
- _IPv6Address.cs
- HiddenFieldPageStatePersister.cs
- DocumentXmlWriter.cs
- webbrowsersite.cs
- GrammarBuilderWildcard.cs
- TTSEngineTypes.cs
- PropertyMap.cs
- XXXInfos.cs
- ContextBase.cs
- StylusPointPropertyInfoDefaults.cs
- ResourceContainerWrapper.cs
- LoginUtil.cs
- XmlNamespaceMappingCollection.cs
- Matrix3D.cs
- ScriptReference.cs
- IChannel.cs
- HttpCapabilitiesSectionHandler.cs
- DriveInfo.cs
- ClientFormsIdentity.cs
- MenuItemBinding.cs
- ReadOnlyDataSourceView.cs
- SiteOfOriginContainer.cs
- InternalCache.cs
- ReadOnlyDataSource.cs
- PageStatePersister.cs
- PathSegmentCollection.cs
- SafeCoTaskMem.cs
- _DisconnectOverlappedAsyncResult.cs
- IdleTimeoutMonitor.cs
- AnimationException.cs
- dsa.cs
- BuildProviderCollection.cs
- HashHelper.cs
- TransmissionStrategy.cs
- ContextDataSource.cs
- ApplicationHost.cs
- TextTrailingWordEllipsis.cs
- DeviceOverridableAttribute.cs
- SessionEndingCancelEventArgs.cs
- CodeConditionStatement.cs
- ListView.cs
- StringUtil.cs
- PropertyDescriptor.cs
- SqlLiftIndependentRowExpressions.cs
- PersonalizationProviderHelper.cs
- FileClassifier.cs
- SspiSafeHandles.cs
- Lazy.cs
- SQLByteStorage.cs
- CFStream.cs
- XmlWriterSettings.cs
- BypassElement.cs
- OlePropertyStructs.cs
- HostedHttpRequestAsyncResult.cs
- AtomContentProperty.cs
- XmlAttributeAttribute.cs
- FacetEnabledSchemaElement.cs
- Int32Rect.cs
- ChildDocumentBlock.cs
- RelationshipConstraintValidator.cs
- _NativeSSPI.cs
- DesignerActionService.cs
- DateTimeConverter.cs
- ObjectMemberMapping.cs
- SafeHandles.cs
- WsdlHelpGeneratorElement.cs
- DbConnectionHelper.cs
- BitmapEffectGroup.cs
- ObjectCache.cs
- UnknownMessageReceivedEventArgs.cs
- SHA256.cs
- ListenerElementsCollection.cs
- FileLogRecordStream.cs
- ElementMarkupObject.cs
- SoapCodeExporter.cs
- FrameworkPropertyMetadata.cs
- ComplexBindingPropertiesAttribute.cs
- DataGridViewSelectedRowCollection.cs
- IIS7WorkerRequest.cs
- EdmRelationshipRoleAttribute.cs
- RectAnimationClockResource.cs
- MemberRelationshipService.cs
- OpCellTreeNode.cs
- LinearQuaternionKeyFrame.cs
- TextTreeUndo.cs
- JsonReader.cs
- WebPartCatalogCloseVerb.cs
- DesignerSerializerAttribute.cs
- ContainerParaClient.cs
- ResourcesBuildProvider.cs
- MobileSysDescriptionAttribute.cs
- UInt16Storage.cs
- VerificationAttribute.cs
- ViewStateException.cs
- DashStyles.cs
- Stroke.cs
- OleDbWrapper.cs
- AbsoluteQuery.cs
- MSAAWinEventWrap.cs