Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Base / System / Diagnostics / PresentationTraceSources.cs / 1305600 / 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.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SecureStringHasher.cs
- WmpBitmapDecoder.cs
- CriticalExceptions.cs
- PointHitTestResult.cs
- TraceLevelStore.cs
- ItemsControl.cs
- ReadOnlyDataSourceView.cs
- XslException.cs
- NameSpaceExtractor.cs
- Calendar.cs
- HitTestWithPointDrawingContextWalker.cs
- _NegoStream.cs
- BitmapEffectDrawingContextState.cs
- XsltArgumentList.cs
- XmlSchemaExternal.cs
- BrowserTree.cs
- RectKeyFrameCollection.cs
- EmbeddedObject.cs
- GradientPanel.cs
- WmpBitmapDecoder.cs
- StringStorage.cs
- FilterableAttribute.cs
- RequestUriProcessor.cs
- XmlFormatMapping.cs
- HttpStreamXmlDictionaryWriter.cs
- RowUpdatedEventArgs.cs
- SeverityFilter.cs
- DragEventArgs.cs
- TextEditorParagraphs.cs
- LinkConverter.cs
- ExceptionRoutedEventArgs.cs
- RpcAsyncResult.cs
- SmiXetterAccessMap.cs
- SecurityRuntime.cs
- SequenceFullException.cs
- BitmapEffectDrawingContextWalker.cs
- ArraySegment.cs
- SqlTriggerContext.cs
- DCSafeHandle.cs
- Domain.cs
- XmlTextEncoder.cs
- CompilerCollection.cs
- XPathNavigatorKeyComparer.cs
- BitmapSourceSafeMILHandle.cs
- SqlDataSourceQueryEditor.cs
- SQLSingle.cs
- Pool.cs
- AssemblyResolver.cs
- ColumnMapProcessor.cs
- HtmlProps.cs
- ListDictionary.cs
- ResourceContainer.cs
- SqlClientFactory.cs
- PasswordRecovery.cs
- TextWriter.cs
- Int32EqualityComparer.cs
- SHA384.cs
- CustomAttributeFormatException.cs
- WindowsRichEdit.cs
- MemberInitExpression.cs
- FileSystemInfo.cs
- CapabilitiesPattern.cs
- DependencyObjectProvider.cs
- UdpDiscoveryEndpointProvider.cs
- StructuredType.cs
- RoutedUICommand.cs
- DBBindings.cs
- MouseGestureConverter.cs
- PropertyManager.cs
- ActivityTrace.cs
- OverflowException.cs
- FixUp.cs
- TreeWalkHelper.cs
- AndCondition.cs
- SafePEFileHandle.cs
- EventLogRecord.cs
- CommentEmitter.cs
- SynchronizationLockException.cs
- XmlDocumentViewSchema.cs
- smtpconnection.cs
- HttpInputStream.cs
- ControlType.cs
- DbConnectionPoolIdentity.cs
- PointLight.cs
- SqlServices.cs
- ConfigUtil.cs
- GenericUriParser.cs
- DiscoveryEndpointElement.cs
- DomainUpDown.cs
- ReturnEventArgs.cs
- ProjectionPruner.cs
- DocumentPageHost.cs
- NamespaceList.cs
- _ProxyChain.cs
- ControlEvent.cs
- ControlCachePolicy.cs
- HTMLTextWriter.cs
- DependencyPropertyAttribute.cs
- Token.cs
- DataServiceQuery.cs