Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Base / System / Diagnostics / PresentationTraceSources.cs / 1 / PresentationTraceSources.cs
/****************************************************************************\ * * File: PresentationTraceSources.cs * * This class provides a public interface to access TraceSources for * enabling/disabling/filtering of trace messages by area. * * The other portion of this partial class is generated using * genTraceSource.pl and AvTraceMessages.txt * * Copyright (C) by Microsoft Corporation. All rights reserved. * \***************************************************************************/ using System.Collections.Generic; using System.Security; using System.Security.Permissions; using MS.Internal; using System.Windows; namespace System.Diagnostics { ////// PresentationTraceLevel - Enum which describes how much detail to trace about a particular object. /// public enum PresentationTraceLevel { ////// Trace no additional information. /// None, ////// Trace some additional information. /// Low, ////// Trace a medium amount of additional information. /// Medium, ////// Trace all available additional information. /// High, } ////// Helper class for retrieving TraceSources /// public static partial class PresentationTraceSources { //----------------------------------------------------- // // Public Properties // //----------------------------------------------------- ////// DependencyProperty for TraceLevel property. /// public static readonly DependencyProperty TraceLevelProperty = DependencyProperty.RegisterAttached( "TraceLevel", typeof(PresentationTraceLevel), typeof(PresentationTraceSources)); ////// Reads the attached property TraceLevel from the given element. /// public static PresentationTraceLevel GetTraceLevel(object element) { return TraceLevelStore.GetTraceLevel(element); } ////// Writes the attached property TraceLevel to the given element. /// public static void SetTraceLevel(object element, PresentationTraceLevel traceLevel) { TraceLevelStore.SetTraceLevel(element, traceLevel); } //----------------------------------------------------- // // Public Methods // //------------------------------------------------------ ////// Refresh TraceSources (re-read config file), creating if necessary. /// // Note: Better would be to separate enable from the Refresh method. public static void Refresh() { // Let AvTrace know that an explicit Refresh has been called. AvTrace.OnRefresh(); // Re-read the .config files System.Diagnostics.Trace.Refresh(); // Initialize any traces classes if needed if (TraceRefresh != null) { TraceRefresh(); } } internal static event TraceRefreshEventHandler TraceRefresh; ////// Critical: /// 1) Asserts for UMC to set trace level. /// /// TreatAsSafe: /// 1) The code path is only invoked when under a debugger /// if the caller can attach a debugger they already have /// unlimited access to the process. Also the only inputs /// to the assert are simply a label for the name. /// [SecurityCritical, SecurityTreatAsSafe] private static TraceSource CreateTraceSource(string sourceName) { // Create the trace source. Whether or not it will actually // trace anything is a decision of the trace source, e.g. it // depends on the app.config file settings. TraceSource source = new TraceSource(sourceName); // If we're attached to the debugger, ensure that at least // warnings/errors are getting traced. if (source.Switch.Level == SourceLevels.Off && AvTrace.IsDebuggerAttached()) { // we need to assert as PT callers under a debugger can invoke this code path // with out having the needed permission to peform this action new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Assert(); // BlessedAssert try { source.Switch.Level = SourceLevels.Warning; } finally { SecurityPermission.RevertAssert(); } } // returning source after reverting the assert to avoid // using exposed elements under the assert return source; } } internal delegate void TraceRefreshEventHandler(); } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. /****************************************************************************\ * * File: PresentationTraceSources.cs * * This class provides a public interface to access TraceSources for * enabling/disabling/filtering of trace messages by area. * * The other portion of this partial class is generated using * genTraceSource.pl and AvTraceMessages.txt * * Copyright (C) by Microsoft Corporation. All rights reserved. * \***************************************************************************/ using System.Collections.Generic; using System.Security; using System.Security.Permissions; using MS.Internal; using System.Windows; namespace System.Diagnostics { ////// PresentationTraceLevel - Enum which describes how much detail to trace about a particular object. /// public enum PresentationTraceLevel { ////// Trace no additional information. /// None, ////// Trace some additional information. /// Low, ////// Trace a medium amount of additional information. /// Medium, ////// Trace all available additional information. /// High, } ////// Helper class for retrieving TraceSources /// public static partial class PresentationTraceSources { //----------------------------------------------------- // // Public Properties // //----------------------------------------------------- ////// DependencyProperty for TraceLevel property. /// public static readonly DependencyProperty TraceLevelProperty = DependencyProperty.RegisterAttached( "TraceLevel", typeof(PresentationTraceLevel), typeof(PresentationTraceSources)); ////// Reads the attached property TraceLevel from the given element. /// public static PresentationTraceLevel GetTraceLevel(object element) { return TraceLevelStore.GetTraceLevel(element); } ////// Writes the attached property TraceLevel to the given element. /// public static void SetTraceLevel(object element, PresentationTraceLevel traceLevel) { TraceLevelStore.SetTraceLevel(element, traceLevel); } //----------------------------------------------------- // // Public Methods // //------------------------------------------------------ ////// Refresh TraceSources (re-read config file), creating if necessary. /// // Note: Better would be to separate enable from the Refresh method. public static void Refresh() { // Let AvTrace know that an explicit Refresh has been called. AvTrace.OnRefresh(); // Re-read the .config files System.Diagnostics.Trace.Refresh(); // Initialize any traces classes if needed if (TraceRefresh != null) { TraceRefresh(); } } internal static event TraceRefreshEventHandler TraceRefresh; ////// Critical: /// 1) Asserts for UMC to set trace level. /// /// TreatAsSafe: /// 1) The code path is only invoked when under a debugger /// if the caller can attach a debugger they already have /// unlimited access to the process. Also the only inputs /// to the assert are simply a label for the name. /// [SecurityCritical, SecurityTreatAsSafe] private static TraceSource CreateTraceSource(string sourceName) { // Create the trace source. Whether or not it will actually // trace anything is a decision of the trace source, e.g. it // depends on the app.config file settings. TraceSource source = new TraceSource(sourceName); // If we're attached to the debugger, ensure that at least // warnings/errors are getting traced. if (source.Switch.Level == SourceLevels.Off && AvTrace.IsDebuggerAttached()) { // we need to assert as PT callers under a debugger can invoke this code path // with out having the needed permission to peform this action new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Assert(); // BlessedAssert try { source.Switch.Level = SourceLevels.Warning; } finally { SecurityPermission.RevertAssert(); } } // returning source after reverting the assert to avoid // using exposed elements under the assert return source; } } internal delegate void TraceRefreshEventHandler(); } // 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
- Codec.cs
- StandardMenuStripVerb.cs
- StateChangeEvent.cs
- FactoryMaker.cs
- IArgumentProvider.cs
- RTLAwareMessageBox.cs
- LogSwitch.cs
- GenerateTemporaryTargetAssembly.cs
- DefaultValueConverter.cs
- XmlQueryStaticData.cs
- X509Chain.cs
- Style.cs
- FrameworkObject.cs
- InputQueueChannel.cs
- FrameworkContentElement.cs
- ChildChangedEventArgs.cs
- CommonGetThemePartSize.cs
- SemanticBasicElement.cs
- Int32Animation.cs
- QilXmlReader.cs
- SecurityDocument.cs
- HashSetEqualityComparer.cs
- SmtpCommands.cs
- WindowsPen.cs
- FontResourceCache.cs
- CodeTypeMember.cs
- OdbcConnectionStringbuilder.cs
- XmlSchemaDatatype.cs
- InternalSafeNativeMethods.cs
- MemberRelationshipService.cs
- HttpConfigurationSystem.cs
- DetailsViewDesigner.cs
- PasswordPropertyTextAttribute.cs
- HtmlTextArea.cs
- BindableTemplateBuilder.cs
- XmlReflectionMember.cs
- ProgramNode.cs
- NotCondition.cs
- GridView.cs
- CellConstantDomain.cs
- storepermissionattribute.cs
- HttpInputStream.cs
- SqlUnionizer.cs
- DataListItemCollection.cs
- XmlSchemaAnnotation.cs
- CheckBox.cs
- CatalogPart.cs
- SqlReferenceCollection.cs
- IntAverageAggregationOperator.cs
- RangeValidator.cs
- XmlSchemaDocumentation.cs
- MappedMetaModel.cs
- OdbcHandle.cs
- CachedBitmap.cs
- StateMachine.cs
- RowBinding.cs
- UnsafeNativeMethods.cs
- WebPartAuthorizationEventArgs.cs
- ExeConfigurationFileMap.cs
- WindowsListViewGroupHelper.cs
- PixelFormatConverter.cs
- PropertyChangingEventArgs.cs
- EntityDataReader.cs
- RadioButton.cs
- GraphicsContainer.cs
- ProfileModule.cs
- XmlDeclaration.cs
- HttpRuntimeSection.cs
- TriggerAction.cs
- sitestring.cs
- safelinkcollection.cs
- GeometryHitTestResult.cs
- ChangePassword.cs
- CookielessHelper.cs
- PrintPreviewControl.cs
- DataTableMapping.cs
- MenuAdapter.cs
- DiscoveryClientProtocol.cs
- ForeignConstraint.cs
- SecurityCriticalDataForSet.cs
- XpsFilter.cs
- PersonalizableTypeEntry.cs
- WorkflowDebuggerSteppingAttribute.cs
- ExpressionBuilder.cs
- CodeStatement.cs
- VarRemapper.cs
- Baml2006KnownTypes.cs
- SafeReadContext.cs
- UIAgentInitializationException.cs
- Encoding.cs
- ManagedIStream.cs
- GeneralTransform3DTo2D.cs
- StyleHelper.cs
- SqlCommand.cs
- UrlAuthFailedErrorFormatter.cs
- HtmlFormWrapper.cs
- AppSettingsExpressionBuilder.cs
- DataGridAddNewRow.cs
- DataGridViewCellStyleConverter.cs
- ListDesigner.cs