mcs/class/corlib/System.Runtime.InteropServices/ManagedErrorInfo.cs

   1 // ManagedErrorInfo class
   2 //
   3 // Eberhard Beilharz (eb1@sil.org)
   4 //
   5 // Copyright (C) 2012 SIL International
   6 using System;
   7 using System.Runtime.CompilerServices;
   8 using System.Security;
   9
  10 namespace System.Runtime.InteropServices
  11 {
  12         /// <summary>
  13         /// Helper class that allows to pass an exception as an IErrorInfo object. This is useful
  14         /// when we get an exception in managed code that is called from unmanaged code that is called
  15         /// from managed code and we want to get to the exception in the outer managed code.
  16         /// </summary>
  17         internal class ManagedErrorInfo: IErrorInfo
  18         {
  19                 private Exception m_Exception;
  20                 public ManagedErrorInfo (Exception e)
  21                 {
  22                         m_Exception = e;
  23                 }
  24
  25                 public Exception Exception {
  26                         get { return m_Exception; }
  27                 }
  28
  29                 #region IErrorInfo
  30                 public int GetGUID (out Guid guid)
  31                 {
  32                         // not supported
  33                         guid = Guid.Empty;
  34                         return 0;
  35                 }
  36
  37                 public int GetSource (out string source)
  38                 {
  39                         source = m_Exception.Source;
  40                         return 0;
  41                 }
  42
  43                 public int GetDescription (out string description)
  44                 {
  45                         description = m_Exception.Message;
  46                         return 0;
  47                 }
  48
  49                 public int GetHelpFile (out string helpFile)
  50                 {
  51                         helpFile = m_Exception.HelpLink;
  52                         return 0;
  53                 }
  54
  55                 public int GetHelpContext(out uint helpContext)
  56                 {
  57                         // not supported
  58                         helpContext = 0;
  59                         return 0;
  60                 }
  61                 #endregion
  62         }
  63 }