从非托管的DLL在C＃中的异常处理

问题描述：

结果
我已经写在C＃

I have the following function written in C#

public static string GetNominativeDeclension(string surnameNamePatronimic)
{
    if(surnameNamePatronimic == null) 
       throw new ArgumentNullException("surnameNamePatronimic");

IntPtr[] ptrs = null;
try
{
    ptrs = StringsToIntPtrArray(surnameNamePatronimic);

    int resultLen = MaxResultBufSize;
    int err = decGetNominativePadeg(ptrs[0], ptrs[1], ref resultLen);
    ThrowException(err);
    return IntPtrToString(ptrs, resultLen);
}
catch
{
    return surnameNamePatronimic;
}
finally
{
    FreeIntPtr(ptrs);
}

}

功能decGetNominativePadeg是在非托管的DLL

Function decGetNominativePadeg is in unmanaged dll


[DllImport("Padeg.dll", EntryPoint = "GetNominativePadeg")]
private static extern Int32 decGetNominativePadeg(IntPtr surnameNamePatronimic,
    IntPtr result, ref Int32 resultLength);

和抛出异常：
已尝试读取或写入受保护的内存。这通常是指示其他内存已损坏。结果
美中不足的是在C＃代码实际上并没有抓住它。为什么？如何处理这个异常？结果
谢谢您的帮助！

and throws an exception: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
The catch that is in C# code doesn't actually catch it. Why? How to handle this exception?
Thank you for your help!

答

的CLR不再提供例外损坏的进程状态在托管代码中的异常处理程序。

"The CLR no longer delivers exceptions for corrupted process state to exception handlers in managed code."

的 NET Framework 4的迁移问题

就在这个添加到配置文件：
的 http://msdn.microsoft.com/en-us/library/dd638517.aspx

Just add this to the config file: http://msdn.microsoft.com/en-us/library/dd638517.aspx

从非托管的DLL在C＃中的异常处理

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