Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / InterOp / HwndSourceKeyboardInputSite.cs / 1407647 / HwndSourceKeyboardInputSite.cs
using System; using System.Windows.Input; using System.Collections; using MS.Win32; using System.Windows.Media; using System.Windows.Threading; using SR=MS.Internal.PresentationCore.SR; using SRID=MS.Internal.PresentationCore.SRID; using System.Security ; using MS.Internal.PresentationCore; namespace System.Windows.Interop { internal class HwndSourceKeyboardInputSite : IKeyboardInputSite { ////// Critical: satisfies a LinkDemand for 'UIPermissionAttribute' on method /// 'System.Windows.Interop.IKeyboardInputSink.set_KeyboardInputSite(System.Windows.Interop.IKeyboardInputSite)'. /// [SecurityCritical] public HwndSourceKeyboardInputSite(HwndSource source, IKeyboardInputSink sink) { if(source == null) { throw new ArgumentNullException("source"); } if(sink == null) { throw new ArgumentNullException("sink"); } if(!(sink is UIElement)) { throw new ArgumentException(SR.Get(SRID.KeyboardSinkMustBeAnElement), "sink"); } _source = source; _sink = sink; _sink.KeyboardInputSite = this; _sinkElement = sink as UIElement; } #region IKeyboardInputSite ////// Unregisters a child KeyboardInputSink from this sink. /// ////// Requires unmanaged code permission. /// ////// Critical - calls CriticalUnregister. /// TreatAsSafe: - Interface declaration demands unrestricted UI permission /// [ SecurityCritical,SecurityTreatAsSafe ] void IKeyboardInputSite.Unregister() { CriticalUnregister(); } ////// Unregisters a child KeyboardInputSink from this sink. /// ////// Critical - calls CriticalUnregisterKeyboardInputSink /// [ SecurityCritical ] internal void CriticalUnregister() { if(_source != null && _sink != null) { _source.CriticalUnregisterKeyboardInputSink(this); _sink.KeyboardInputSite = null; } _source = null; _sink = null; } ////// Returns the sink associated with this site (the "child", not /// the "parent" sink that owns the site). There's no way of /// getting from the site to the parent sink. /// IKeyboardInputSink IKeyboardInputSite.Sink { get { return _sink; } } ////// Components call this when they want to move focus ("tab") but /// have nowhere further to tab within their own component. Return /// value is true if the site moved focus, false if the calling /// component still has focus and should wrap around. /// bool IKeyboardInputSite.OnNoMoreTabStops(TraversalRequest request) { bool traversed = false; if(_sinkElement != null) { traversed = _sinkElement.MoveFocus(request); } return traversed; } #endregion IKeyboardInputSite private HwndSource _source; private IKeyboardInputSink _sink; private UIElement _sinkElement; } } // 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
- SharedPersonalizationStateInfo.cs
- SqlCommandSet.cs
- TraceSwitch.cs
- VisualStyleElement.cs
- NameTable.cs
- DeleteWorkflowOwnerCommand.cs
- TextDecoration.cs
- AsyncParams.cs
- Error.cs
- XmlSchemaImporter.cs
- EntityContainer.cs
- XPathNodeList.cs
- PartitionResolver.cs
- IntSecurity.cs
- CollectionViewGroup.cs
- LinqDataSourceDisposeEventArgs.cs
- StackBuilderSink.cs
- RijndaelManagedTransform.cs
- DefaultValidator.cs
- StoreItemCollection.Loader.cs
- AxisAngleRotation3D.cs
- DropShadowEffect.cs
- ObjectComplexPropertyMapping.cs
- DataTableTypeConverter.cs
- WebServiceBindingAttribute.cs
- ConstructorExpr.cs
- XmlSchemaChoice.cs
- DeclarationUpdate.cs
- AnnotationObservableCollection.cs
- RegexCode.cs
- DatagridviewDisplayedBandsData.cs
- NativeMethods.cs
- HttpWriter.cs
- CodeDomLocalizationProvider.cs
- DataColumnMapping.cs
- CharacterBuffer.cs
- SignatureGenerator.cs
- RequiredAttributeAttribute.cs
- ZipFileInfo.cs
- ModuleConfigurationInfo.cs
- DelayedRegex.cs
- HtmlProps.cs
- PeerPresenceInfo.cs
- DataTemplate.cs
- CodeIdentifier.cs
- ipaddressinformationcollection.cs
- DataRecord.cs
- DataListItem.cs
- ScrollViewerAutomationPeer.cs
- MobileControlsSectionHandler.cs
- InvalidWMPVersionException.cs
- SourceLocationProvider.cs
- FigureParaClient.cs
- PeerUnsafeNativeMethods.cs
- LockCookie.cs
- UnsafeNativeMethodsCLR.cs
- SerializerWriterEventHandlers.cs
- ConfigurationSettings.cs
- DocumentGrid.cs
- DefaultTextStore.cs
- HandledEventArgs.cs
- GlyphsSerializer.cs
- GenerateTemporaryTargetAssembly.cs
- DaylightTime.cs
- XslTransform.cs
- ContextMenu.cs
- XPathNodeIterator.cs
- InvalidAsynchronousStateException.cs
- GlobalAllocSafeHandle.cs
- TraceContextEventArgs.cs
- IdlingCommunicationPool.cs
- ViewCellRelation.cs
- ObjectDataProvider.cs
- TableRowGroupCollection.cs
- CodeGotoStatement.cs
- FillRuleValidation.cs
- Scene3D.cs
- Rotation3DAnimation.cs
- SqlDataSourceView.cs
- RequestSecurityToken.cs
- CommonProperties.cs
- RootAction.cs
- CollectionEditVerbManager.cs
- PathData.cs
- SectionInformation.cs
- CustomAttribute.cs
- X509CertificateRecipientClientCredential.cs
- ISessionStateStore.cs
- TransformDescriptor.cs
- CellQuery.cs
- StrongTypingException.cs
- ArraySortHelper.cs
- ComponentRenameEvent.cs
- xmlfixedPageInfo.cs
- ConfigurationValue.cs
- ZoneMembershipCondition.cs
- AnonymousIdentificationSection.cs
- safelinkcollection.cs
- WizardStepCollectionEditor.cs
- TagMapInfo.cs