unbind handle

[punpouet]

Hello!

I am actually facing a problem.
Currently developping an app with resizable columns (so far it works), I plan to put a "condense" button which will wrap the column making it small. I tried many ways to remove the handle and so far no luck. If the handle is not removed, when I press the button, the handle does not adapt to the new content, so the handle does not move and there is a lot of space betweet that condensed column and the handle.

I hope I wasn't too confusing, anyone has an idea? Or is it actually something that isn't implemented?