(no subject)

Valery Fine (fine@bnl.gov)
Thu, 23 Apr 1998 09:35:29 -0500


On 23 Apr 98 at 14:33, Wei Xie wrote:

>
> Dear Rooters
>
> I need your help ! I hope my macro has the following abilities:
>
> When clicking one part of window with mouse, a small window will
> pop up and show the enlarged view of that part. While continuing to
> click the small window should make the view larger and larger until
> you're satisfied.
>
> Any suggestions are warmly welcomed !
>

First of all you should read the comment for TPad class

(see: http://root.cern.ch/root/html/TPad.html)

Roughly say you should derive you own class from TObject and supply
your own ExecuteEvent Method. When mouse will cross your object on
the screen the ExecuteEvent() of your class will be called, Then it
is up to you to supply the proper action (for exampl e you may create
a new TCanvas or change the parameters of the selcted TPad object
etc)

Hope this helps,
Valery

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Dr. Valeri Faine (Fine)
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Dr. Valery Fine Telex : 911621 dubna su
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