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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*=============================================================================
**
**
**
** Purpose: Exception class for all errors from COM Interop where we don't
** recognize the HResult.
**
**
=============================================================================*/
using System;
using System.Runtime.Serialization;
using System.Globalization;
using System.Security;
using Microsoft.Win32;
namespace System.Runtime.InteropServices
{
// Exception for COM Interop errors where we don't recognize the HResult.
//
public class COMException : ExternalException
{
public COMException()
: base(SR.Arg_COMException)
{
HResult = __HResults.E_FAIL;
}
public COMException(String message)
: base(message)
{
HResult = __HResults.E_FAIL;
}
public COMException(String message, Exception inner)
: base(message, inner)
{
HResult = __HResults.E_FAIL;
}
public COMException(String message, int errorCode)
: base(message)
{
HResult = errorCode;
}
protected COMException(SerializationInfo info, StreamingContext context) : base(info, context)
{
throw new PlatformNotSupportedException();
}
public override String ToString()
{
String message = Message;
String s;
String _className = GetType().ToString();
s = _className + " (0x" + HResult.ToString("X8", CultureInfo.InvariantCulture) + ")";
if (!(message == null || message.Length <= 0))
{
s = s + ": " + message;
}
Exception _innerException = InnerException;
if (_innerException != null)
{
s = s + " ---> " + _innerException.ToString();
}
if (StackTrace != null)
s += Environment.NewLine + StackTrace;
return s;
}
}
}
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