Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / CompMod / System / ComponentModel / Win32Exception.cs / 1305376 / Win32Exception.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.ComponentModel { using Microsoft.Win32; using System; using System.Diagnostics; using System.Runtime.InteropServices; using System.Runtime.Remoting; using System.Runtime.Serialization; using System.Security; using System.Security.Permissions; using System.Text; ////// // Code already shipped - safe to place link demand on derived class constructor when base doesn't have it - Suppress message. [HostProtection(SharedState = true)] [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2123:OverrideLinkDemandsShouldBeIdenticalToBase")] [Serializable] [SuppressUnmanagedCodeSecurity] public class Win32Exception : ExternalException, ISerializable { ///The exception that is thrown for a Win32 error code. ////// private readonly int nativeErrorCode; ///Represents the Win32 error code associated with this exception. This /// field is read-only. ////// [SecurityPermission(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.UnmanagedCode)] public Win32Exception() : this(Marshal.GetLastWin32Error()) { } ///Initializes a new instance of the ///class with the last Win32 error /// that occured. /// [SecurityPermission(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.UnmanagedCode)] public Win32Exception(int error) : this(error, GetErrorMessage(error)) { } ///Initializes a new instance of the ///class with the specified error. /// [SecurityPermission(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.UnmanagedCode)] public Win32Exception(int error, string message) : base(message) { nativeErrorCode = error; } ///Initializes a new instance of the ///class with the specified error and the /// specified detailed description. /// Initializes a new instance of the Exception class with a specified error message. /// FxCop CA1032: Multiple constructors are required to correctly implement a custom exception. /// [SecurityPermission(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.UnmanagedCode)] public Win32Exception( string message ) : this(Marshal.GetLastWin32Error(), message) { } ////// Initializes a new instance of the Exception class with a specified error message and a /// reference to the inner exception that is the cause of this exception. /// FxCop CA1032: Multiple constructors are required to correctly implement a custom exception. /// [SecurityPermission(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.UnmanagedCode)] public Win32Exception( string message, Exception innerException ) : base(message, innerException) { nativeErrorCode = Marshal.GetLastWin32Error(); } protected Win32Exception(SerializationInfo info, StreamingContext context) : base (info, context) { IntSecurity.UnmanagedCode.Demand(); nativeErrorCode = info.GetInt32("NativeErrorCode"); } ////// public int NativeErrorCode { get { return nativeErrorCode; } } private static string GetErrorMessage(int error) { //get the system error message... string errorMsg = ""; StringBuilder sb = new StringBuilder(256); int result = SafeNativeMethods.FormatMessage( SafeNativeMethods.FORMAT_MESSAGE_IGNORE_INSERTS | SafeNativeMethods.FORMAT_MESSAGE_FROM_SYSTEM | SafeNativeMethods.FORMAT_MESSAGE_ARGUMENT_ARRAY, NativeMethods.NullHandleRef, error, 0, sb, sb.Capacity + 1, IntPtr.Zero); if (result != 0) { int i = sb.Length; while (i > 0) { char ch = sb[i - 1]; if (ch > 32 && ch != '.') break; i--; } errorMsg = sb.ToString(0, i); } else { errorMsg ="Unknown error (0x" + Convert.ToString(error, 16) + ")"; } return errorMsg; } // Even though all we're exposing is the nativeErrorCode (which is also available via public property) // it's not a bad idea to have this in place. Later, if more fields are added to this exception, // we won't need to worry about accidentaly exposing them through this interface. [SecurityPermissionAttribute(SecurityAction.Demand,SerializationFormatter=true)] public override void GetObjectData(SerializationInfo info, StreamingContext context) { if (info==null) { throw new ArgumentNullException("info"); } info.AddValue("NativeErrorCode", nativeErrorCode); base.GetObjectData(info, context); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.Represents the Win32 error code associated with this exception. This /// field is read-only. ///
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- UnsafeNativeMethodsPenimc.cs
- DoubleLinkListEnumerator.cs
- ToolStripLabel.cs
- StreamMarshaler.cs
- _OverlappedAsyncResult.cs
- PackWebResponse.cs
- TableRowCollection.cs
- OpCodes.cs
- IPAddress.cs
- ActivityTypeDesigner.xaml.cs
- SpecialNameAttribute.cs
- VoiceSynthesis.cs
- AttachedPropertyBrowsableForChildrenAttribute.cs
- AuthorizationPolicyTypeElementCollection.cs
- UrlMapping.cs
- OutputWindow.cs
- DesignerVerb.cs
- SafeCloseHandleCritical.cs
- DockProviderWrapper.cs
- IntegrationExceptionEventArgs.cs
- XsltOutput.cs
- DoubleAnimationUsingPath.cs
- SamlAttributeStatement.cs
- ScopeCompiler.cs
- System.Data.OracleClient_BID.cs
- SqlRowUpdatingEvent.cs
- MetadataItemEmitter.cs
- ReachDocumentPageSerializerAsync.cs
- CssTextWriter.cs
- HelpEvent.cs
- TrustSection.cs
- InternalControlCollection.cs
- AdvancedBindingPropertyDescriptor.cs
- SrgsElement.cs
- DataGridViewCellStyleConverter.cs
- SafeUserTokenHandle.cs
- SqlTrackingWorkflowInstance.cs
- httpstaticobjectscollection.cs
- MultiAsyncResult.cs
- ObjectKeyFrameCollection.cs
- EmulateRecognizeCompletedEventArgs.cs
- RIPEMD160Managed.cs
- ExpandedWrapper.cs
- DataGridViewSortCompareEventArgs.cs
- ServerProtocol.cs
- RegexStringValidatorAttribute.cs
- GatewayIPAddressInformationCollection.cs
- Size.cs
- AttributeCollection.cs
- BitmapEffectRenderDataResource.cs
- DateTimeFormatInfoScanner.cs
- TextAnchor.cs
- _NestedMultipleAsyncResult.cs
- DocumentViewerConstants.cs
- WindowsGraphics2.cs
- UpdateException.cs
- IEnumerable.cs
- LocalizationComments.cs
- _KerberosClient.cs
- IPEndPointCollection.cs
- UserControlAutomationPeer.cs
- oledbmetadatacollectionnames.cs
- WinInetCache.cs
- ControlCachePolicy.cs
- BlurBitmapEffect.cs
- WindowsImpersonationContext.cs
- ResXFileRef.cs
- HybridObjectCache.cs
- WorkflowViewService.cs
- ObjectRef.cs
- RepeatButtonAutomationPeer.cs
- XmlSchemaElement.cs
- Comparer.cs
- UrlParameterWriter.cs
- XmlRawWriter.cs
- SignedXml.cs
- MonikerUtility.cs
- PowerModeChangedEventArgs.cs
- CLRBindingWorker.cs
- ComponentConverter.cs
- FrameSecurityDescriptor.cs
- TemplateInstanceAttribute.cs
- DictionarySectionHandler.cs
- PrePostDescendentsWalker.cs
- CreateUserWizard.cs
- GeneratedContractType.cs
- CalendarDateChangedEventArgs.cs
- GAC.cs
- ObjectDataSourceSelectingEventArgs.cs
- PriorityChain.cs
- TypeConverterHelper.cs
- KeyMatchBuilder.cs
- FontStretchConverter.cs
- OLEDB_Enum.cs
- SortDescription.cs
- HandleCollector.cs
- RecordsAffectedEventArgs.cs
- KeyValueSerializer.cs
- SettingsPropertyValueCollection.cs
- XsdBuilder.cs