Did you try what I offered you
http://root.cern.ch/root/roottalk/roottalk99/1293.html
It seems to me this will do what you want (with the proposed
SetMouseLock/SetMouseUnLock methods)
If this works it can be included into ROOT with your kind assistance.
With my best regards,
Valery
> Good if next ROOT version would have this switch
> programmed in.
Valery