I already mentioned my tiny problem but I think I did a bad manipulation, so I didn't have a complete answer. So I start again, simplifying the example that illustrates my problem.
In French, some words have accents. After running program with Matlab 2019, accents are replaced by question marks in the outputs. How can I solve this issue ?
As an example and to better understand the issue, here some lines code of ones of my program written with Matlab 2009a
uicontrol(gcf,'style','push','pos',[0.114*dimec(3) 0.4*dimec(4) 0.12*dimec(3) 0.06*dimec(4)],'String','Signaux déterministes',...
'callback',['disp(''Hello'')'],'backgroundcolor',[0.8000 0.4000 0.8000]);
As you see, there is an ” é ” in the lines code for the push button name "Signaux déterministes". But the ” é ” is replaced by a question mark after running the script as you can see in the screenshot below.
Thanks for any help you can offer.