Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / WinForms / Managed / System / WinForms / PreviewKeyDownEventArgs.cs / 1 / PreviewKeyDownEventArgs.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System.Diagnostics; using System.Diagnostics.CodeAnalysis; using System; ////// /// /// public class PreviewKeyDownEventArgs : EventArgs { private readonly Keys _keyData; private bool _isInputKey; ////// Provides data for the PreviewKeyDownEvent /// ////// /// public PreviewKeyDownEventArgs(Keys keyData) { _keyData = keyData; } ///[To be supplied.] ////// /// public bool Alt { get { return (_keyData & Keys.Alt) == Keys.Alt; } } ////// Gets a value indicating whether the ALT key was pressed. /// ////// /// public bool Control { get { return (_keyData & Keys.Control) == Keys.Control; } } ////// Gets a value indicating whether the CTRL key was pressed. /// ////// /// //subhag : changed the behaviour of the KeyCode as per the new requirements. public Keys KeyCode { [ // Keys is discontiguous so we have to use Enum.IsDefined. SuppressMessage("Microsoft.Performance", "CA1803:AvoidCostlyCallsWherePossible") ] get { Keys keyGenerated = _keyData & Keys.KeyCode; // since Keys can be discontiguous, keeping Enum.IsDefined. if (!Enum.IsDefined(typeof(Keys),(int)keyGenerated)) return Keys.None; else return keyGenerated; } } ////// Gets the keyboard code for a ///or /// event. /// /// /// //subhag : added the KeyValue as per the new requirements. public int KeyValue { get { return (int)(_keyData & Keys.KeyCode); } } ////// Gets the keyboard value for a ///or /// event. /// /// /// public Keys KeyData { get { return _keyData; } } ////// Gets the key data for a ///or /// event. /// /// /// public Keys Modifiers { get { return _keyData & Keys.Modifiers; } } ////// Gets the modifier flags for a ///or event. /// This indicates which modifier keys (CTRL, SHIFT, and/or ALT) were pressed. /// /// /// public bool Shift { get { return (_keyData & Keys.Shift) == Keys.Shift; } } public bool IsInputKey { get { return _isInputKey; } set { _isInputKey = value; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved./// Gets /// a value indicating whether the SHIFT key was pressed. /// ///
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DisplayMemberTemplateSelector.cs
- FastPropertyAccessor.cs
- MachineKeyConverter.cs
- KeyValuePair.cs
- PagesSection.cs
- UpdateExpressionVisitor.cs
- LinearKeyFrames.cs
- CollectionViewGroupInternal.cs
- TextAutomationPeer.cs
- BrowserInteropHelper.cs
- ClientSettingsProvider.cs
- DocumentSchemaValidator.cs
- VerificationAttribute.cs
- OpenTypeLayout.cs
- WeakEventTable.cs
- unsafeIndexingFilterStream.cs
- SQLDateTimeStorage.cs
- PropertySourceInfo.cs
- ExpandableObjectConverter.cs
- ObjectPropertyMapping.cs
- ClientScriptManagerWrapper.cs
- PenContext.cs
- ComAdminInterfaces.cs
- _SingleItemRequestCache.cs
- CheckPair.cs
- CompilationLock.cs
- SettingsProviderCollection.cs
- AssemblyBuilder.cs
- ToolBar.cs
- LabelTarget.cs
- SimpleBitVector32.cs
- MobileControlsSectionHandler.cs
- ConfigurationValidatorAttribute.cs
- SafeLocalMemHandle.cs
- ArraySortHelper.cs
- CodeValidator.cs
- SecurityUniqueId.cs
- XmlConvert.cs
- SqlInternalConnectionTds.cs
- RequestStatusBarUpdateEventArgs.cs
- InternalBufferOverflowException.cs
- ObjectDataSourceDisposingEventArgs.cs
- TextEditorSelection.cs
- DataGridViewLinkColumn.cs
- StructuredTypeInfo.cs
- KeyValuePairs.cs
- ComplexPropertyEntry.cs
- DataGridDetailsPresenterAutomationPeer.cs
- LoadRetryStrategyFactory.cs
- DataGridViewLayoutData.cs
- DataGridViewCellPaintingEventArgs.cs
- BooleanStorage.cs
- StreamAsIStream.cs
- MemoryFailPoint.cs
- DbConnectionStringBuilder.cs
- ParamArrayAttribute.cs
- uribuilder.cs
- PassportIdentity.cs
- SerTrace.cs
- PageThemeParser.cs
- Deserializer.cs
- DeviceContext2.cs
- CryptoApi.cs
- MobileControlsSection.cs
- PathSegment.cs
- OdbcStatementHandle.cs
- Adorner.cs
- WebPartZoneBase.cs
- TableSectionStyle.cs
- TextSerializer.cs
- TextSelectionHelper.cs
- DomainConstraint.cs
- FigureParaClient.cs
- SmiEventSink_DeferedProcessing.cs
- ControlOperationBehavior.cs
- CodeTryCatchFinallyStatement.cs
- WizardSideBarListControlItem.cs
- TextBox.cs
- SelectionService.cs
- EntityContainerAssociationSetEnd.cs
- DataListItemEventArgs.cs
- MsmqHostedTransportConfiguration.cs
- DoubleIndependentAnimationStorage.cs
- MouseDevice.cs
- DBParameter.cs
- FormsAuthenticationUser.cs
- PointF.cs
- XpsDigitalSignature.cs
- PassportAuthenticationModule.cs
- XmlHierarchicalEnumerable.cs
- ContentPlaceHolder.cs
- TreeChangeInfo.cs
- NativeCompoundFileAPIs.cs
- ByteConverter.cs
- ThumbButtonInfo.cs
- CellTreeNode.cs
- GenericEnumerator.cs
- Int16KeyFrameCollection.cs
- TransactionTraceIdentifier.cs
- UpdateTracker.cs