Would anybody know if it is possible to access (change) visual controls from within a library IF the controls address has been passed to the library function correctly, and the change is made by that function when called by Synchronize() (therefore assuming now within the main threads scope) ?

I am trying this at the moment (using cmem by the way), and whilst all seems to be working ok, I am getting segfaults regularly.

Just trying to determine if the problems are with doing the gui access from a library, or somewhere else in my code.

Thanks - SteveG