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 / Input / Stylus / RawStylusInputReport.cs / 1 / RawStylusInputReport.cs
using System; using System.ComponentModel; using System.Windows; using System.Windows.Threading; using System.Windows.Media; using System.Windows.Input.StylusPlugIns; using System.Security; using System.Security.Permissions; using MS.Internal.PresentationCore; // SecurityHelper using MS.Internal; using SR=MS.Internal.PresentationCore.SR; using SRID=MS.Internal.PresentationCore.SRID; namespace System.Windows.Input { ///////////////////////////////////////////////////////////////////////// ////// The RawStylusInputReport class encapsulates the raw input provided /// from a stylus. /// ////// It is important to note that the InputReport class only contains /// blittable types. This is required so that the report can be /// marshalled across application domains. /// internal class RawStylusInputReport : InputReport { ///////////////////////////////////////////////////////////////////// ////// Constructs an instance of the RawStylusInputReport class. /// /// /// The mode in which the input is being provided. /// /// /// The time when the input occured. /// /// /// The PresentationSource over which the stylus moved. /// /// /// The PenContext. /// /// /// The set of actions being reported. /// /// /// Tablet device id. /// /// /// Stylus device id. /// /// /// Raw stylus data. /// ////// Critical: This handles critical data in the form of PresentationSource. /// TreatAsSafe:There are demands on the critical data(PresentationSource) /// [SecurityCritical,SecurityTreatAsSafe] internal RawStylusInputReport( InputMode mode, int timestamp, PresentationSource inputSource, PenContext penContext, RawStylusActions actions, int tabletDeviceId, int stylusDeviceId, int[] data) : base(inputSource, InputType.Stylus, mode, timestamp) { // Validate parameters if (!RawStylusActionsHelper.IsValid(actions)) { throw new InvalidEnumArgumentException(SR.Get(SRID.Enum_Invalid, "actions")); } if (data == null && actions != RawStylusActions.InRange) { throw new ArgumentNullException("data"); } _penContext = new SecurityCriticalDataClass(penContext); _actions = actions; _tabletDeviceId = tabletDeviceId; _stylusDeviceId = stylusDeviceId; _data = data; _isSynchronize = false; } ///////////////////////////////////////////////////////////////////// /// /// Constructs an instance of the RawStylusInputReport class. /// /// /// The mode in which the input is being provided. /// /// /// The time when the input occured. /// /// /// The PresentationSource over which the stylus moved. /// /// /// The set of actions being reported. /// /// /// Raw stylus data StylusPointDescription. /// /// /// Raw stylus data. /// ////// Critical: This handles critical data in the form of PresentationSource. /// TreatAsSafe:There are demands on the critical data(PresentationSource) /// [SecurityCritical,SecurityTreatAsSafe] internal RawStylusInputReport( InputMode mode, int timestamp, PresentationSource inputSource, RawStylusActions actions, StylusPointDescription mousePointDescription, int[] mouseData) : base(inputSource, InputType.Stylus, mode, timestamp) { // Validate parameters if (!RawStylusActionsHelper.IsValid(actions)) { throw new InvalidEnumArgumentException(SR.Get(SRID.Enum_Invalid, "actions")); } if (mouseData == null) { throw new ArgumentNullException("mouseData"); } _penContext = new SecurityCriticalDataClass(null); _actions = actions; _tabletDeviceId = 0; _stylusDeviceId = 0; _data = mouseData; _isSynchronize = false; _mousePointDescription = mousePointDescription; _isMouseInput = true; } ///////////////////////////////////////////////////////////////////// /// /// Read-only access to the set of actions that were reported. /// internal RawStylusActions Actions { get { return _actions; } } ///////////////////////////////////////////////////////////////////// ////// Read-only access to stylus context id that reported the data. /// internal int TabletDeviceId { get { return _tabletDeviceId; } } ///////////////////////////////////////////////////////////////////// ////// Read-only access to stylus context id that reported the data. /// ////// Critical: provides access to critical member _penContext /// internal PenContext PenContext { [SecurityCritical] get { return _penContext.Value; } } ///////////////////////////////////////////////////////////////////// ////// Read-only access to stylus context id that reported the data. /// ////// Critical: This handles critical data _penContext /// TreatAsSafe: We're returning safe data /// internal StylusPointDescription StylusPointDescription { [SecurityCritical, SecurityTreatAsSafe] get { return _isMouseInput ? _mousePointDescription : _penContext.Value.StylusPointDescription; } } ///////////////////////////////////////////////////////////////////// ////// Read-only access to stylus device id that reported the data. /// internal int StylusDeviceId { get { return _stylusDeviceId; } } ///////////////////////////////////////////////////////////////////// internal StylusDevice StylusDevice { get { return _stylusDevice; } set { _stylusDevice = value; } } ///////////////////////////////////////////////////////////////////// ////// Read-only access to the raw data that was reported. /// ////// Critical: Access the critical field - _data /// TreatAsSafe: No input is taken. It's safe to a clone. /// [SecurityCritical, SecurityTreatAsSafe] internal int[] GetRawPacketData() { if (_data == null) return null; return (int[])_data.Clone(); } ///////////////////////////////////////////////////////////////////// ////// Critical: Access the critical field - _data /// TreatAsSafe: No input is taken. It's safe to return the last tablet point. /// [SecurityCritical, SecurityTreatAsSafe] internal Point GetLastTabletPoint() { int packetLength = StylusPointDescription.GetInputArrayLengthPerPoint(); int lastXIndex = _data.Length - packetLength; return new Point(_data[lastXIndex], _data[lastXIndex + 1]); } ///////////////////////////////////////////////////////////////////// ////// Critical - Hands out ref to internal data that can be used to spoof input. /// internal int[] Data { [SecurityCritical] get { return _data; } } ///////////////////////////////////////////////////////////////////// ////// Critical - Setting property can be used to spoof input. /// internal RawStylusInput RawStylusInput { get { return _rawStylusInput.Value; } [SecurityCritical] set { _rawStylusInput.Value = value; } } ///////////////////////////////////////////////////////////////////// internal bool Synchronized { get { return _isSynchronize; } set { _isSynchronize = value; } } ///////////////////////////////////////////////////////////////////// RawStylusActions _actions; int _tabletDeviceId; ////// Critical: Marked critical to prevent inadvertant spread to transparent code /// private SecurityCriticalDataClass_penContext; int _stylusDeviceId; /// /// Critical to prevent accidental spread to transparent code /// [SecurityCritical] int[] _data; StylusDevice _stylusDevice; // cached value looked up from _stylusDeviceId SecurityCriticalDataForSet_rawStylusInput; bool _isSynchronize; // Set from StylusDevice.Synchronize. bool _isMouseInput; // Special case of mouse input being sent to plugins StylusPointDescription _mousePointDescription; // layout for mouse points } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.ComponentModel; using System.Windows; using System.Windows.Threading; using System.Windows.Media; using System.Windows.Input.StylusPlugIns; using System.Security; using System.Security.Permissions; using MS.Internal.PresentationCore; // SecurityHelper using MS.Internal; using SR=MS.Internal.PresentationCore.SR; using SRID=MS.Internal.PresentationCore.SRID; namespace System.Windows.Input { ///////////////////////////////////////////////////////////////////////// /// /// The RawStylusInputReport class encapsulates the raw input provided /// from a stylus. /// ////// It is important to note that the InputReport class only contains /// blittable types. This is required so that the report can be /// marshalled across application domains. /// internal class RawStylusInputReport : InputReport { ///////////////////////////////////////////////////////////////////// ////// Constructs an instance of the RawStylusInputReport class. /// /// /// The mode in which the input is being provided. /// /// /// The time when the input occured. /// /// /// The PresentationSource over which the stylus moved. /// /// /// The PenContext. /// /// /// The set of actions being reported. /// /// /// Tablet device id. /// /// /// Stylus device id. /// /// /// Raw stylus data. /// ////// Critical: This handles critical data in the form of PresentationSource. /// TreatAsSafe:There are demands on the critical data(PresentationSource) /// [SecurityCritical,SecurityTreatAsSafe] internal RawStylusInputReport( InputMode mode, int timestamp, PresentationSource inputSource, PenContext penContext, RawStylusActions actions, int tabletDeviceId, int stylusDeviceId, int[] data) : base(inputSource, InputType.Stylus, mode, timestamp) { // Validate parameters if (!RawStylusActionsHelper.IsValid(actions)) { throw new InvalidEnumArgumentException(SR.Get(SRID.Enum_Invalid, "actions")); } if (data == null && actions != RawStylusActions.InRange) { throw new ArgumentNullException("data"); } _penContext = new SecurityCriticalDataClass(penContext); _actions = actions; _tabletDeviceId = tabletDeviceId; _stylusDeviceId = stylusDeviceId; _data = data; _isSynchronize = false; } ///////////////////////////////////////////////////////////////////// /// /// Constructs an instance of the RawStylusInputReport class. /// /// /// The mode in which the input is being provided. /// /// /// The time when the input occured. /// /// /// The PresentationSource over which the stylus moved. /// /// /// The set of actions being reported. /// /// /// Raw stylus data StylusPointDescription. /// /// /// Raw stylus data. /// ////// Critical: This handles critical data in the form of PresentationSource. /// TreatAsSafe:There are demands on the critical data(PresentationSource) /// [SecurityCritical,SecurityTreatAsSafe] internal RawStylusInputReport( InputMode mode, int timestamp, PresentationSource inputSource, RawStylusActions actions, StylusPointDescription mousePointDescription, int[] mouseData) : base(inputSource, InputType.Stylus, mode, timestamp) { // Validate parameters if (!RawStylusActionsHelper.IsValid(actions)) { throw new InvalidEnumArgumentException(SR.Get(SRID.Enum_Invalid, "actions")); } if (mouseData == null) { throw new ArgumentNullException("mouseData"); } _penContext = new SecurityCriticalDataClass(null); _actions = actions; _tabletDeviceId = 0; _stylusDeviceId = 0; _data = mouseData; _isSynchronize = false; _mousePointDescription = mousePointDescription; _isMouseInput = true; } ///////////////////////////////////////////////////////////////////// /// /// Read-only access to the set of actions that were reported. /// internal RawStylusActions Actions { get { return _actions; } } ///////////////////////////////////////////////////////////////////// ////// Read-only access to stylus context id that reported the data. /// internal int TabletDeviceId { get { return _tabletDeviceId; } } ///////////////////////////////////////////////////////////////////// ////// Read-only access to stylus context id that reported the data. /// ////// Critical: provides access to critical member _penContext /// internal PenContext PenContext { [SecurityCritical] get { return _penContext.Value; } } ///////////////////////////////////////////////////////////////////// ////// Read-only access to stylus context id that reported the data. /// ////// Critical: This handles critical data _penContext /// TreatAsSafe: We're returning safe data /// internal StylusPointDescription StylusPointDescription { [SecurityCritical, SecurityTreatAsSafe] get { return _isMouseInput ? _mousePointDescription : _penContext.Value.StylusPointDescription; } } ///////////////////////////////////////////////////////////////////// ////// Read-only access to stylus device id that reported the data. /// internal int StylusDeviceId { get { return _stylusDeviceId; } } ///////////////////////////////////////////////////////////////////// internal StylusDevice StylusDevice { get { return _stylusDevice; } set { _stylusDevice = value; } } ///////////////////////////////////////////////////////////////////// ////// Read-only access to the raw data that was reported. /// ////// Critical: Access the critical field - _data /// TreatAsSafe: No input is taken. It's safe to a clone. /// [SecurityCritical, SecurityTreatAsSafe] internal int[] GetRawPacketData() { if (_data == null) return null; return (int[])_data.Clone(); } ///////////////////////////////////////////////////////////////////// ////// Critical: Access the critical field - _data /// TreatAsSafe: No input is taken. It's safe to return the last tablet point. /// [SecurityCritical, SecurityTreatAsSafe] internal Point GetLastTabletPoint() { int packetLength = StylusPointDescription.GetInputArrayLengthPerPoint(); int lastXIndex = _data.Length - packetLength; return new Point(_data[lastXIndex], _data[lastXIndex + 1]); } ///////////////////////////////////////////////////////////////////// ////// Critical - Hands out ref to internal data that can be used to spoof input. /// internal int[] Data { [SecurityCritical] get { return _data; } } ///////////////////////////////////////////////////////////////////// ////// Critical - Setting property can be used to spoof input. /// internal RawStylusInput RawStylusInput { get { return _rawStylusInput.Value; } [SecurityCritical] set { _rawStylusInput.Value = value; } } ///////////////////////////////////////////////////////////////////// internal bool Synchronized { get { return _isSynchronize; } set { _isSynchronize = value; } } ///////////////////////////////////////////////////////////////////// RawStylusActions _actions; int _tabletDeviceId; ////// Critical: Marked critical to prevent inadvertant spread to transparent code /// private SecurityCriticalDataClass_penContext; int _stylusDeviceId; /// /// Critical to prevent accidental spread to transparent code /// [SecurityCritical] int[] _data; StylusDevice _stylusDevice; // cached value looked up from _stylusDeviceId SecurityCriticalDataForSet_rawStylusInput; bool _isSynchronize; // Set from StylusDevice.Synchronize. bool _isMouseInput; // Special case of mouse input being sent to plugins StylusPointDescription _mousePointDescription; // layout for mouse points } } // 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
- LineServices.cs
- WSHttpBindingBaseElement.cs
- EventItfInfo.cs
- LogExtent.cs
- TextSelection.cs
- TagPrefixInfo.cs
- MenuScrollingVisibilityConverter.cs
- SchemaNamespaceManager.cs
- COM2AboutBoxPropertyDescriptor.cs
- CompatibleComparer.cs
- PreApplicationStartMethodAttribute.cs
- NativeRightsManagementAPIsStructures.cs
- GenericsInstances.cs
- AnonymousIdentificationModule.cs
- XmlCollation.cs
- NativeMethods.cs
- CodeAttributeArgument.cs
- SequentialWorkflowHeaderFooter.cs
- Thickness.cs
- Domain.cs
- TextTreePropertyUndoUnit.cs
- DataGridViewRowPostPaintEventArgs.cs
- PropertyIDSet.cs
- GacUtil.cs
- CursorConverter.cs
- DiagnosticsElement.cs
- WsdlParser.cs
- BitmapSourceSafeMILHandle.cs
- ExceptionUtil.cs
- QuotedStringFormatReader.cs
- GlobalEventManager.cs
- SemaphoreFullException.cs
- SoapCommonClasses.cs
- XmlSchemaAll.cs
- ComPlusDiagnosticTraceRecords.cs
- Camera.cs
- TypeToken.cs
- Stack.cs
- indexingfiltermarshaler.cs
- MenuBindingsEditorForm.cs
- InputLanguageEventArgs.cs
- MarshalByRefObject.cs
- SortedList.cs
- UnsafeNativeMethods.cs
- SecurityContextSecurityTokenResolver.cs
- pingexception.cs
- SqlFacetAttribute.cs
- PasswordRecovery.cs
- DetailsViewModeEventArgs.cs
- FirstQueryOperator.cs
- XPathParser.cs
- Query.cs
- MsmqHostedTransportConfiguration.cs
- AssemblyAttributes.cs
- DbDataAdapter.cs
- FormsAuthenticationUserCollection.cs
- SHA384Managed.cs
- BuildProvidersCompiler.cs
- Console.cs
- XmlSchemaFacet.cs
- StartUpEventArgs.cs
- AsymmetricSecurityBindingElement.cs
- ServiceHostingEnvironment.cs
- HostedImpersonationContext.cs
- ISO2022Encoding.cs
- DoubleIndependentAnimationStorage.cs
- ServiceObjectContainer.cs
- DataStreams.cs
- MultiPropertyDescriptorGridEntry.cs
- HttpHandler.cs
- ThemeDirectoryCompiler.cs
- DrawingContextWalker.cs
- CacheOutputQuery.cs
- EDesignUtil.cs
- DetailsViewDeletedEventArgs.cs
- FillErrorEventArgs.cs
- Control.cs
- UnwrappedTypesXmlSerializerManager.cs
- OleDbPermission.cs
- Baml6Assembly.cs
- SoapInteropTypes.cs
- CodeGotoStatement.cs
- ZipFileInfo.cs
- MethodAccessException.cs
- Baml6Assembly.cs
- SecurityState.cs
- QueueProcessor.cs
- RemotingException.cs
- OperationSelectorBehavior.cs
- SystemColorTracker.cs
- DifferencingCollection.cs
- ServiceTimeoutsElement.cs
- FixedPageProcessor.cs
- ObjectListFieldsPage.cs
- AttributeParameterInfo.cs
- GeneratedContractType.cs
- DefaultCompensation.cs
- SurrogateChar.cs
- XmlCountingReader.cs
- ImageIndexConverter.cs