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
- LogicalTreeHelper.cs
- ExtentCqlBlock.cs
- WebBrowserBase.cs
- StateItem.cs
- DataControlPagerLinkButton.cs
- PrivateUnsafeNativeCompoundFileMethods.cs
- RepeaterItem.cs
- SettingsPropertyValueCollection.cs
- Style.cs
- TransactionBridgeSection.cs
- FastEncoderWindow.cs
- TriState.cs
- OleDbConnectionFactory.cs
- Button.cs
- securitycriticaldataformultiplegetandset.cs
- shaperfactoryquerycachekey.cs
- ExtenderControl.cs
- MarkupCompilePass2.cs
- webclient.cs
- SrgsSemanticInterpretationTag.cs
- WorkflowViewStateService.cs
- DataGridViewCellConverter.cs
- CookielessHelper.cs
- SqlDataSourceSelectingEventArgs.cs
- CustomAssemblyResolver.cs
- RayHitTestParameters.cs
- OleDbInfoMessageEvent.cs
- ValidatingReaderNodeData.cs
- XsdDuration.cs
- Metafile.cs
- tooltip.cs
- EntityDataSourceConfigureObjectContext.cs
- HttpContextBase.cs
- AutomationPropertyChangedEventArgs.cs
- RawStylusInputReport.cs
- EdmError.cs
- XPathNodeHelper.cs
- NativeMethods.cs
- CircleHotSpot.cs
- ApplicationHost.cs
- ToolStripOverflowButton.cs
- Descriptor.cs
- XmlSchemaObjectTable.cs
- XmlSchemaSimpleTypeList.cs
- ExeContext.cs
- PolygonHotSpot.cs
- SplitContainerDesigner.cs
- StreamUpdate.cs
- Model3DGroup.cs
- InstanceDataCollection.cs
- CodeGenerator.cs
- NativeMethods.cs
- StandardCommandToolStripMenuItem.cs
- GeometryGroup.cs
- InitializingNewItemEventArgs.cs
- ThrowHelper.cs
- ADRoleFactory.cs
- XmlSchemaSimpleTypeList.cs
- DeadCharTextComposition.cs
- ViewPort3D.cs
- DuplicateWaitObjectException.cs
- EventManager.cs
- HttpDictionary.cs
- DataGridViewCheckBoxCell.cs
- PixelFormats.cs
- ButtonChrome.cs
- LoginView.cs
- HorizontalAlignConverter.cs
- ListDictionaryInternal.cs
- ListBindingHelper.cs
- Transform3D.cs
- AuthenticationModuleElement.cs
- GridViewColumnCollectionChangedEventArgs.cs
- XmlTextEncoder.cs
- WebControlAdapter.cs
- ModuleBuilder.cs
- SessionStateModule.cs
- XsdDateTime.cs
- HttpRuntimeSection.cs
- SettingsBase.cs
- PolicyException.cs
- TreeNodeBinding.cs
- TraceSection.cs
- HttpRequestContext.cs
- LocationReferenceEnvironment.cs
- CodeNamespace.cs
- SafeNativeMethods.cs
- rsa.cs
- KeyValuePair.cs
- ErrorFormatter.cs
- Script.cs
- DataGridAddNewRow.cs
- DependencyObjectPropertyDescriptor.cs
- MethodRental.cs
- IEnumerable.cs
- DynamicPropertyReader.cs
- SolidColorBrush.cs
- NamespaceEmitter.cs
- DBSchemaRow.cs
- CompilerResults.cs