MATLAB Answers


How can I set a GUI callback such that it uses the up-to-date handles structure as an input variable?

Asked by Marc Lalancette on 9 Dec 2013
Latest activity Commented on by Marc Lalancette on 10 Dec 2013
Hello, I'm trying to have users navigate a plot by clicking on it. However, another 3-d plot is in "rotate" mode so I've had to use the workaround of turning off listeners and resetting the KeyPressFcn:
hManager = uigetmodemanager(hObject); % hObject is my GUI figure.
set(hManager.WindowListenerHandles, 'Enable', 'off');
set(hObject, 'KeyPressFcn', @figure_NiftiViewer_KeyPressFcn);
Unfortunately, I can't figure out how (or if it's possible) to reset the callback to it's default GUIDE "way", where it would have the "handles" structure as an input argument. If I explicitly give it these ways, it doesn't get updated:
set(hObject, 'KeyPressFcn', {@figure_NiftiViewer_KeyPressFcn, handles});
set(hObject, 'KeyPressFcn', {@figure_NiftiViewer_KeyPressFcn, guidata(hObject)});
And unfortunately, if you look at what's displayed in the figure properties in the property inspector, it's:
which doesn't seem like a "valid" function (I tried putting that in and it gave an error).
So is there a way to manually make this callback act the same way GUIDE makes it act?


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1 Answer

Answer by Walter Roberson
on 10 Dec 2013
 Accepted Answer

set(hObject, 'KeyPressFcn', @(src, evt) figure_NiftiViewer_KeyPressFcn(src, evt, guidata(src)) );

  1 Comment

Thanks, it works! I'll have to take the time to understand that syntax now. :)

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