Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / PreviewKeyDownEventArgs.cs / 1305376 / 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./// 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
- TreeBuilder.cs
- TextFormatter.cs
- ReaderContextStackData.cs
- XPathNodeHelper.cs
- UrlMappingsModule.cs
- UserControlAutomationPeer.cs
- SimpleType.cs
- KeyFrames.cs
- WpfWebRequestHelper.cs
- SmiTypedGetterSetter.cs
- Query.cs
- MappingSource.cs
- WebServiceTypeData.cs
- WindowsRegion.cs
- SQLStringStorage.cs
- BoundField.cs
- CultureInfoConverter.cs
- EqualityComparer.cs
- DependencyProperty.cs
- DataGridViewColumnStateChangedEventArgs.cs
- NavigationProperty.cs
- EventlogProvider.cs
- ReadContentAsBinaryHelper.cs
- EncodingDataItem.cs
- TcpServerChannel.cs
- OleDbEnumerator.cs
- ContentOnlyMessage.cs
- RSAPKCS1KeyExchangeDeformatter.cs
- ListDictionary.cs
- WorkflowApplicationUnloadedException.cs
- Hash.cs
- _ScatterGatherBuffers.cs
- IDQuery.cs
- GenericEnumerator.cs
- CodeMemberEvent.cs
- SqlDataSourceStatusEventArgs.cs
- SafeNativeMethodsMilCoreApi.cs
- FrameSecurityDescriptor.cs
- DirectionalLight.cs
- XmlNamespaceMapping.cs
- HandleRef.cs
- ServiceAppDomainAssociationProvider.cs
- ConstraintManager.cs
- XmlSchemaSimpleContent.cs
- PointCollectionConverter.cs
- UntrustedRecipientException.cs
- ObjectDataSourceDisposingEventArgs.cs
- InstanceDescriptor.cs
- MulticastDelegate.cs
- WindowsFormsSynchronizationContext.cs
- SecurityTokenReferenceStyle.cs
- FixedSOMSemanticBox.cs
- ComboBoxItem.cs
- SymLanguageVendor.cs
- BamlStream.cs
- NativeMethodsCLR.cs
- httpstaticobjectscollection.cs
- IncrementalCompileAnalyzer.cs
- StubHelpers.cs
- BaseDataListDesigner.cs
- FamilyTypeface.cs
- DrawingContextDrawingContextWalker.cs
- WaitHandle.cs
- CodeDOMUtility.cs
- EntityDataSourceMemberPath.cs
- XmlNodeList.cs
- LockRecursionException.cs
- ProviderConnectionPoint.cs
- MsmqChannelFactory.cs
- WebServiceErrorEvent.cs
- GradientBrush.cs
- DataServiceException.cs
- ViewKeyConstraint.cs
- MergePropertyDescriptor.cs
- XmlAttribute.cs
- FormViewInsertedEventArgs.cs
- ArgIterator.cs
- PersonalizationDictionary.cs
- InvalidFilterCriteriaException.cs
- PersistenceParticipant.cs
- GenericUriParser.cs
- CopyAttributesAction.cs
- MdiWindowListItemConverter.cs
- PreloadedPackages.cs
- AttachedAnnotation.cs
- MimeTypeMapper.cs
- LostFocusEventManager.cs
- TextPointerBase.cs
- SessionStateContainer.cs
- TextContainerChangedEventArgs.cs
- EdmScalarPropertyAttribute.cs
- OdbcParameterCollection.cs
- Size.cs
- HashMembershipCondition.cs
- LongAverageAggregationOperator.cs
- SmiMetaData.cs
- MiniCustomAttributeInfo.cs
- Models.cs
- FormViewDeletedEventArgs.cs
- MouseGesture.cs