Question : Visual Basic .Net, Need the Specific reason an IOException was thrown.

Is there an equivilant to C's errno in catching an IOException in .Net? I have an app that tests for locks, and I want to make sure I am waiting because the error was a locking problem, not another problem ("Access Denied", etc.). I do not want to parse the error string (could change, not language independent) or retrieve process list and look for my file (too much CPU). Is there a feature of .Net that works like errno?

Thanks.

Answer : Visual Basic .Net, Need the Specific reason an IOException was thrown.

Possibly?

Marshal.GetLastWin32Error, or Err.LastDllError