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Check if push button has an image on it or not

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I have a bunch of push button where the user can put pictures on but how do I check if the push button has an image on it or not? Below is the code I thought would work but wouldn't. Any help is greatly appreciated.
if (handles.pushbutton1,'cdata',[]) || (handles.pushbutton2,'cdata',[])
msgbox('There are still empty tiles')

Accepted Answer

Michael Haderlein
Michael Haderlein on 23 Apr 2015
You need to use get and isequal:
if isequal(get(handles.pushbutton1,'cdata'),[]) || isequal(get(handles.pushbutton2,'cdata'),[])

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