Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Core / CSharp / System / Windows / Input / KeyEventArgs.cs / 1 / KeyEventArgs.cs
using System; using System.Security; using MS.Internal; using MS.Internal.PresentationCore; // SecurityHelper namespace System.Windows.Input { ////// The KeyEventArgs class contains information about key states. /// ///public class KeyEventArgs : KeyboardEventArgs { /// /// Constructs an instance of the KeyEventArgs class. /// /// /// The logical keyboard device associated with this event. /// /// /// The input source that provided this input. /// /// /// The time when the input occured. /// /// /// The key referenced by the event. /// ////// Critical - accepts PresentationSource. /// [SecurityCritical] public KeyEventArgs(KeyboardDevice keyboard, PresentationSource inputSource, int timestamp, Key key) : base(keyboard, timestamp) { if (inputSource == null) throw new ArgumentNullException("inputSource"); if (!Keyboard.IsValidKey(key)) throw new System.ComponentModel.InvalidEnumArgumentException("key", (int)key, typeof(Key)); _inputSource = inputSource; _realKey = key; _isRepeat = false; // Start out assuming that this is just a normal key. MarkNormal(); } ////// The input source that provided this input. /// ////// Callers must have UIPermission(PermissionState.Unrestricted) to call this API. /// ////// Critical - hands out _inputSource via UnsafeInputSource call. /// PublicOK - there is a demand. /// public PresentationSource InputSource { [SecurityCritical ] get { SecurityHelper.DemandUnrestrictedUIPermission(); return UnsafeInputSource; } } ////// The Key referenced by the event, if the key is not being /// handled specially. /// public Key Key { get {return _key;} } ////// The original key, as opposed to ///, which might /// have been changed (e.g. by MarkTextInput). /// /// Note: This should remain internal. When a processor obfuscates the key, /// such as changing characters to Key.TextInput, we're deliberately trying to /// hide it and make it hard to find. But internally we'd like an easy way to find /// it. So we have this internal, but it must remain internal. /// internal Key RealKey { get { return _realKey; } } ////// The Key referenced by the event, if the key is going to be /// processed by an IME. /// public Key ImeProcessedKey { get { return (_key == Key.ImeProcessed) ? _realKey : Key.None;} } ////// The Key referenced by the event, if the key is going to be /// processed by an system. /// public Key SystemKey { get { return (_key == Key.System) ? _realKey : Key.None;} } ////// The state of the key referenced by the event. /// public KeyStates KeyStates { get {return this.KeyboardDevice.GetKeyStates(_realKey);} } ////// Whether the key pressed is a repeated key or not. /// public bool IsRepeat { get {return _isRepeat;} } ////// Whether or not the key referenced by the event is down. /// ///public bool IsDown { get {return this.KeyboardDevice.IsKeyDown(_realKey);} } /// /// Whether or not the key referenced by the event is up. /// ///public bool IsUp { get {return this.KeyboardDevice.IsKeyUp(_realKey);} } /// /// Whether or not the key referenced by the event is toggled. /// ///public bool IsToggled { get {return this.KeyboardDevice.IsKeyToggled(_realKey);} } /// /// The mechanism used to call the type-specific handler on the /// target. /// /// /// The generic handler to call in a type-specific way. /// /// /// The target to call the handler on. /// ///protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget) { KeyEventHandler handler = (KeyEventHandler) genericHandler; handler(genericTarget, this); } internal void SetRepeat( bool newRepeatState ) { _isRepeat = newRepeatState; } internal void MarkNormal() { _key = _realKey; } internal void MarkSystem() { _key = Key.System; } internal void MarkImeProcessed() { _key = Key.ImeProcessed; } /// /// Critical - hands out _inputSource. /// internal PresentationSource UnsafeInputSource { [SecurityCritical] get { return _inputSource; } } internal int ScanCode { get {return _scanCode;} set {_scanCode = value;} } internal bool IsExtendedKey { get {return _isExtendedKey;} set {_isExtendedKey = value;} } private Key _realKey; private Key _key; ////// Critical - PresentationSource required elevations to create it. /// [SecurityCritical] private PresentationSource _inputSource; private bool _isRepeat; private int _scanCode; private bool _isExtendedKey; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.Security; using MS.Internal; using MS.Internal.PresentationCore; // SecurityHelper namespace System.Windows.Input { ////// The KeyEventArgs class contains information about key states. /// ///public class KeyEventArgs : KeyboardEventArgs { /// /// Constructs an instance of the KeyEventArgs class. /// /// /// The logical keyboard device associated with this event. /// /// /// The input source that provided this input. /// /// /// The time when the input occured. /// /// /// The key referenced by the event. /// ////// Critical - accepts PresentationSource. /// [SecurityCritical] public KeyEventArgs(KeyboardDevice keyboard, PresentationSource inputSource, int timestamp, Key key) : base(keyboard, timestamp) { if (inputSource == null) throw new ArgumentNullException("inputSource"); if (!Keyboard.IsValidKey(key)) throw new System.ComponentModel.InvalidEnumArgumentException("key", (int)key, typeof(Key)); _inputSource = inputSource; _realKey = key; _isRepeat = false; // Start out assuming that this is just a normal key. MarkNormal(); } ////// The input source that provided this input. /// ////// Callers must have UIPermission(PermissionState.Unrestricted) to call this API. /// ////// Critical - hands out _inputSource via UnsafeInputSource call. /// PublicOK - there is a demand. /// public PresentationSource InputSource { [SecurityCritical ] get { SecurityHelper.DemandUnrestrictedUIPermission(); return UnsafeInputSource; } } ////// The Key referenced by the event, if the key is not being /// handled specially. /// public Key Key { get {return _key;} } ////// The original key, as opposed to ///, which might /// have been changed (e.g. by MarkTextInput). /// /// Note: This should remain internal. When a processor obfuscates the key, /// such as changing characters to Key.TextInput, we're deliberately trying to /// hide it and make it hard to find. But internally we'd like an easy way to find /// it. So we have this internal, but it must remain internal. /// internal Key RealKey { get { return _realKey; } } ////// The Key referenced by the event, if the key is going to be /// processed by an IME. /// public Key ImeProcessedKey { get { return (_key == Key.ImeProcessed) ? _realKey : Key.None;} } ////// The Key referenced by the event, if the key is going to be /// processed by an system. /// public Key SystemKey { get { return (_key == Key.System) ? _realKey : Key.None;} } ////// The state of the key referenced by the event. /// public KeyStates KeyStates { get {return this.KeyboardDevice.GetKeyStates(_realKey);} } ////// Whether the key pressed is a repeated key or not. /// public bool IsRepeat { get {return _isRepeat;} } ////// Whether or not the key referenced by the event is down. /// ///public bool IsDown { get {return this.KeyboardDevice.IsKeyDown(_realKey);} } /// /// Whether or not the key referenced by the event is up. /// ///public bool IsUp { get {return this.KeyboardDevice.IsKeyUp(_realKey);} } /// /// Whether or not the key referenced by the event is toggled. /// ///public bool IsToggled { get {return this.KeyboardDevice.IsKeyToggled(_realKey);} } /// /// The mechanism used to call the type-specific handler on the /// target. /// /// /// The generic handler to call in a type-specific way. /// /// /// The target to call the handler on. /// ///protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget) { KeyEventHandler handler = (KeyEventHandler) genericHandler; handler(genericTarget, this); } internal void SetRepeat( bool newRepeatState ) { _isRepeat = newRepeatState; } internal void MarkNormal() { _key = _realKey; } internal void MarkSystem() { _key = Key.System; } internal void MarkImeProcessed() { _key = Key.ImeProcessed; } /// /// Critical - hands out _inputSource. /// internal PresentationSource UnsafeInputSource { [SecurityCritical] get { return _inputSource; } } internal int ScanCode { get {return _scanCode;} set {_scanCode = value;} } internal bool IsExtendedKey { get {return _isExtendedKey;} set {_isExtendedKey = value;} } private Key _realKey; private Key _key; ////// Critical - PresentationSource required elevations to create it. /// [SecurityCritical] private PresentationSource _inputSource; private bool _isRepeat; private int _scanCode; private bool _isExtendedKey; } } // 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
- RepeatInfo.cs
- HttpDictionary.cs
- MeasureData.cs
- BackgroundFormatInfo.cs
- DBCommand.cs
- StringResourceManager.cs
- OlePropertyStructs.cs
- StateBag.cs
- CallbackValidatorAttribute.cs
- ResourceDescriptionAttribute.cs
- EventLogPermissionEntry.cs
- XmlUTF8TextReader.cs
- SystemWebCachingSectionGroup.cs
- CodeEventReferenceExpression.cs
- BoundColumn.cs
- SystemIcmpV6Statistics.cs
- MonthCalendarDesigner.cs
- Stack.cs
- CompensatableSequenceActivity.cs
- CallId.cs
- RelatedEnd.cs
- OdbcUtils.cs
- QueryStringParameter.cs
- ContainerControl.cs
- XmlIncludeAttribute.cs
- DataViewManagerListItemTypeDescriptor.cs
- RawUIStateInputReport.cs
- VisualTreeFlattener.cs
- FormViewRow.cs
- HtmlControl.cs
- Registry.cs
- DecimalKeyFrameCollection.cs
- RowVisual.cs
- ClientWindowsAuthenticationMembershipProvider.cs
- EdmConstants.cs
- DefaultBinder.cs
- ObjectDataSourceChooseTypePanel.cs
- LifetimeServices.cs
- ExpressionBuilder.cs
- PackageProperties.cs
- TableColumn.cs
- _LoggingObject.cs
- FrameworkTemplate.cs
- WindowsAuthenticationEventArgs.cs
- WebFaultException.cs
- FileEnumerator.cs
- QilXmlReader.cs
- GPPOINT.cs
- MimeTypeMapper.cs
- ScrollItemPattern.cs
- FlowLayoutSettings.cs
- ExtensionFile.cs
- OperationAbortedException.cs
- IteratorFilter.cs
- GridItemPatternIdentifiers.cs
- ZoneButton.cs
- TraceContextEventArgs.cs
- LogicalExpr.cs
- SafeProcessHandle.cs
- RetrieveVirtualItemEventArgs.cs
- DataKeyArray.cs
- MessageDroppedTraceRecord.cs
- XamlVector3DCollectionSerializer.cs
- MergablePropertyAttribute.cs
- HebrewCalendar.cs
- TypeBuilder.cs
- Renderer.cs
- AnnotationAdorner.cs
- NumberFunctions.cs
- EventLogEntryCollection.cs
- Token.cs
- ValidatingReaderNodeData.cs
- ZipFileInfo.cs
- CancellationTokenRegistration.cs
- TreeNode.cs
- WebPartCatalogCloseVerb.cs
- SchemaAttDef.cs
- HttpProxyTransportBindingElement.cs
- CheckableControlBaseAdapter.cs
- BooleanExpr.cs
- SplitterPanel.cs
- ConfigurationFileMap.cs
- SessionStateContainer.cs
- MatrixAnimationBase.cs
- BinaryMessageEncodingElement.cs
- messageonlyhwndwrapper.cs
- MoveSizeWinEventHandler.cs
- ParseElementCollection.cs
- OpCodes.cs
- MimePart.cs
- SecurityElement.cs
- NavigationFailedEventArgs.cs
- XmlSecureResolver.cs
- KnownIds.cs
- TemplateControlCodeDomTreeGenerator.cs
- InputMethod.cs
- BackStopAuthenticationModule.cs
- SmtpSpecifiedPickupDirectoryElement.cs
- ResXResourceWriter.cs
- ExpandedWrapper.cs