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Properties of graphic objects not observable any more in R2014b?

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Thomas Deneux
Thomas Deneux 2015-1-11
编辑： Walter Roberson 2016-9-27
Hello,
In my programs, i am using 'addlistener' to track specific changes of the properties of some graphic objects, for example (hobj is a graphic object handle):
addlistener(hobj,'Position','PostSet',@(u,e)updatepos(P));
addlistener(hobj,'Units','PostSet',@(u,e)updateunits(P));
This works fine for me (i have R2014a), but leads to the following error for one collaborator who has R2014b:
Error using matlab.ui.Figure/addlistener While adding a PostSet listener, property 'Position' in class 'matlab.ui.Figure' is not defined to be SetObservable.
Is it possible that the ability to track property changes that i was using has been removed in the latest release of Matlab?! If it is the case, how then can i detect in particular when the size of graphic objects changes (including when their units are 'normalized' and the size of the parent is changed).
Thanks

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回答（1 个）

Walter Roberson
Walter Roberson 2016-9-27
编辑：Walter Roberson 2016-9-27
You can addlistener to the Resize event.
All of the properties() of figures can be addlistener except Position and Children. I do not know at this time why Position is different.

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