Hey
Your question is little bit wage but still

At the moment I do not know how to detect which listbox is in use.

What do u mean by this? If that means list box selection then use a object which will have the instance of the valid list box.

Update:You can select the listbox based on the mouse click(I hope the last click in either of the list box is the active one)

Thanks
SasiKumar

In reply to Re: selection problem with two Tk listboxes by sasikumar
in thread selection problem with two Tk listboxes by fcvw

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