Getting the Windows System Error Code title/description from its hex number

Question

I\'m messing around with some windows functions using p/invoke. Occasionally, I get an error code that is not ERROR_SUCCESS (such an odd name).

Is there a way to loo

Answer 1

You could take the defines from winerror.h at Rensselaer Polytechnic Institute, and put them into an Enum:

public enum Win32ErrorCode : long
{
     ERROR_SUCCESS = 0L,
     NO_ERROR = 0L,
     ERROR_INVALID_FUNCTION = 1L,
     ERROR_FILE_NOT_FOUND = 2L,
     ERROR_PATH_NOT_FOUND = 3L,
     ERROR_TOO_MANY_OPEN_FILES = 4L,
     ERROR_ACCESS_DENIED = 5L,
     etc.
}

Then if your error code is in a variable error_code you would use :

Enum.GetName(typeof(Win32ErrorCode), error_code);