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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
/*=============================================================================
**
** Class: COMException
**
**
** Purpose: Exception class for all errors from COM Interop where we don't
** recognize the HResult.
**
**
=============================================================================*/
namespace System.Runtime.InteropServices {
using System;
using System.Runtime.Serialization;
using System.Globalization;
using System.Security;
using Microsoft.Win32;
// Exception for COM Interop errors where we don't recognize the HResult.
//
[ComVisible(true)]
[Serializable]
public class COMException : ExternalException {
public COMException()
: base(Environment.GetResourceString("Arg_COMException"))
{
SetErrorCode(__HResults.E_FAIL);
}
public COMException(String message)
: base(message)
{
SetErrorCode(__HResults.E_FAIL);
}
public COMException(String message, Exception inner)
: base(message, inner) {
SetErrorCode(__HResults.E_FAIL);
}
public COMException(String message,int errorCode)
: base(message) {
SetErrorCode(errorCode);
}
[SecuritySafeCritical]
internal COMException(int hresult)
: base(Win32Native.GetMessage(hresult))
{
SetErrorCode(hresult);
}
internal COMException(String message, int hresult, Exception inner)
: base(message, inner)
{
SetErrorCode(hresult);
}
protected COMException(SerializationInfo info, StreamingContext context) : base(info, context) {
}
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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