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listener on graphics property 'BeingDeleted'

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Markus Leuthold
Markus Leuthold 2015-11-6
回答： Sean de Wolski 2016-9-1
How do I add a listener to a graphics object being deleted? It seems like 'BeingDeleted' is set to 'on' during deletion. Furthermore 'BeingDeleted' is SetObservable. So why does the following code not work?
h=plot(0,0,'.b');
addlistener(h,'BeingDeleted','PostSet',@(varargin)(disp('deleted')))
delete(h)
Please note I don't want to use the callback 'deleteFcn', since there might be other objects interested in the delete event.
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Daniel Kovari
Daniel Kovari 2016-9-1
I'm also having trouble with listeners to 'BeingDeleted'. Did you find a work around?

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回答（1 个）

Sean de Wolski
Sean de Wolski 2016-9-1
How about just listening for 'ObjectBeingDestroyed'?
addlistener(h,'ObjectBeingDestroyed',@(varargin)(disp('deleted')))

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