source: qtprobe-demo/docs/build/html/_sources/Traits/handler.txt @ 825

Last change on this file since 825 was 825, checked in by jemian, 13 years ago

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1.. $Id: handler.rst 824 2012-04-24 20:19:42Z jemian $
2
3===================================================
4traits_probe.py : CodeHandler class
5===================================================
6
7.. code-block:: python
8        :linenos:
9
10        # TraitsUI Handler class for bound methods
11        class CodeHandler ( Handler ):
12           
13            def connect ( self, info ):
14                if len(info.object.name) > 0:
15                    try:
16                        if info.object._chid is not None:
17                            info.object._chid.cancel_callback()
18                            info.object._chid.disconnect()
19                    except:
20                        pass
21                    info.object._chid = epics.PV(
22                         str(info.object.name),
23                         callback=info.object.do_callback
24                    )
25       
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