how to make values global in matlab gui?

Hello all,

I found some similar questions already but unfortunately none of the answers worked for me.

I'm writing a very simple image viewer in Matlab Gui.

I have this code in the beginning :

   handles.folder = 'myfolder';
   folder_content = dir(handles.folder);
   folder_content(1:2) = [];

so, the image viewer takes photos from that folder

and I want this to be a global, so that I won't have to write the same code in every push button callback or slider call back.

I tried

guidata(hObject,handles);

and global function, but they didn't work.

thanks in advance,

Dimitri

[Stephen23]

Avoid globals, and use the method that Adam suggests.

Answer 1

[Adam]

Your code will allow

handles.folder = 'myfolder';

to be accessible in any callback. The code you wrote after that is just in the scope that you wrote it so if you want that elsewhere also you need

handles.folder_content = folder_content;
guidata( hObject, handles )

or the equivalent also.

[Dimitri]

Thanks a lot !