Hello Rene, thank you for an answer. I'm afraid I wasn't specific enough. Your advice applies to user defined classes derived from ROOT classes, where I can override DistancetoPrimitive fucntion. Actually I've been doing this quite successfully hiding my objects from being seen by mouse. What I really wanted - to be able to switch off/on this ability for ROOT native objects. Now (or untill I was bored to do so and asked this question) I create dublicates of ROOT classes (derived from ROOT that is) wich differ from originals only by the definition of DistancetoPrimitive. I found it a bit tedious and sought an expert opinion. Good if next ROOT version would have this switch programmed in. thank you very much, Dmitri On Thu, 10 Jun 1999, Rene Brun wrote: > Dmitri Litvintsev wrote: > > > > Dear Rooters, > > > > Is it possible to switch off the ability of the object > > to be picked with mouse? Sometimes it very useful. > > > > Hi Dmitri, > see URL: http://root.cern.ch/root/HowtoPick.html > To disable picking, you should add a user option to your > DistancetoPrimitive > function and return a large value. > > In version 2.22/05, I have added the possibility to disable picking > for a given object obj. > > Rene Brun >
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