Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Core / CSharp / System / Windows / InterOp / HwndSourceKeyboardInputSite.cs / 1 / 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 { 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. 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 { 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
- ListItemCollection.cs
- WindowsListViewItemStartMenu.cs
- SiteOfOriginContainer.cs
- _NetRes.cs
- EdmType.cs
- OneOfElement.cs
- OracleParameter.cs
- TabControlCancelEvent.cs
- SqlUtil.cs
- CompiledQuery.cs
- TableRowGroup.cs
- Memoizer.cs
- RegisteredExpandoAttribute.cs
- PrintDocument.cs
- RolePrincipal.cs
- Number.cs
- MailAddressCollection.cs
- TransformerTypeCollection.cs
- SQLInt64Storage.cs
- EntryIndex.cs
- ExceptionNotification.cs
- CorrelationHandle.cs
- XmlWriter.cs
- FontFaceLayoutInfo.cs
- InvalidWMPVersionException.cs
- SrgsRuleRef.cs
- EventWaitHandle.cs
- ExtentCqlBlock.cs
- HwndTarget.cs
- MetabaseServerConfig.cs
- XsltLibrary.cs
- PageWrapper.cs
- GroupItem.cs
- MouseEvent.cs
- SizeChangedEventArgs.cs
- GlobalizationSection.cs
- ConfigUtil.cs
- TableCell.cs
- InstallerTypeAttribute.cs
- CRYPTPROTECT_PROMPTSTRUCT.cs
- filewebresponse.cs
- InstanceCreationEditor.cs
- UserControlCodeDomTreeGenerator.cs
- ResourcePermissionBaseEntry.cs
- OleDbWrapper.cs
- ServiceContractListItem.cs
- XPathPatternParser.cs
- MatchNoneMessageFilter.cs
- SoapEnvelopeProcessingElement.cs
- DLinqColumnProvider.cs
- DataControlPagerLinkButton.cs
- SimpleType.cs
- CodeRegionDirective.cs
- RawUIStateInputReport.cs
- Hash.cs
- PointValueSerializer.cs
- ObjectStorage.cs
- RegistryDataKey.cs
- TaiwanCalendar.cs
- SQLCharsStorage.cs
- ProvidersHelper.cs
- XmlSchemaIdentityConstraint.cs
- GPPOINTF.cs
- RegexMatchCollection.cs
- Stream.cs
- XmlSchemaExternal.cs
- ProgressBar.cs
- GridView.cs
- MsmqTransportElement.cs
- TextBreakpoint.cs
- RuleEngine.cs
- ToolStripDropDown.cs
- XmlSequenceWriter.cs
- PrinterResolution.cs
- CombinedGeometry.cs
- StrokeCollectionConverter.cs
- RawStylusInputCustomData.cs
- HatchBrush.cs
- SelectorAutomationPeer.cs
- TraceEventCache.cs
- AsyncPostBackTrigger.cs
- CookieProtection.cs
- TreeView.cs
- NameValuePair.cs
- ValidatorCollection.cs
- ZoomingMessageFilter.cs
- PrintEvent.cs
- PositiveTimeSpanValidatorAttribute.cs
- RuleSettingsCollection.cs
- GenericPrincipal.cs
- CollectionContainer.cs
- AppSettingsSection.cs
- ColorConverter.cs
- SweepDirectionValidation.cs
- RegexCapture.cs
- TypeLoadException.cs
- MaskedTextProvider.cs
- Grant.cs
- TransportChannelListener.cs
- XmlElementAttribute.cs