c# - How do I look up the proper Windows System Error Code to use in my application?

Question

I am writing a C# .NET 2.0 application wherein when a message is expected to be received via the SerialPort. If the frame is not received (i.e. times out) or it is determined to be invalid, I need to set an error code using SetLastError. Windows has a plethora of error codes. Is there a simple tool or reference to help narrow down the proper error code to use?

ADDITIONAL INFO

While throwing an exception and handling it higher up the stack is my preference, that is not an option in this case because the application I am updating was not designed to take advantage of such a useful feature.

Answer 1

Unfortunately the above didn't work for me, however this worked perfectly for me, pasting the whole code so it can be copy pasted directly in C#

public static class WinErrors
{
    /// <summary>
    /// Gets a user friendly string message for a system error code
    /// </summary>
    /// <param name="errorCode">System error code</param>
    /// <returns>Error string</returns>
    public static string GetSystemMessage(uint errorCode)
    {
        var exception = new Win32Exception((int)errorCode);
        return exception.Message;
    }
}