Guihandles changes since matlab 2016?

Hey guys,

I am working with Matlab 2018b and trying to run an older code written in Matlab2016b and it doesn't run as it should.

The code itself creates a Gui and instead of showing me the complete Gui with buttons it shows me only the background. I was wondering if something maybe changed in the newest version of matlab. Can anyone help?

Here the code:

function RosGui()
MainFigure = figure('NumberTitle','off','Name','Super Combi Tool','Visible','on','Position',[1,1,1320,762],...
    'Units','pixels','Color','k'); %,'ToolBar','none','MenuBar','none'
MainGui = guihandles(MainFigure);
initbuttonimg = imread('Grafiken/InitButton.png');
MainGui.initbutton = uicontrol('Style','pushbutton','Units','pixels','Position',[21,690,117,50],'FontSize',16,'CData',initbuttonimg);
viewbuttonimg = imread('Grafiken/ViewButton.png');
MainGui.viewbutton = uicontrol('Style','pushbutton','Units','pixels','Position',[153,690,48,50],'FontSize',16,'Enable','inactive','CData',viewbuttonimg);
developmentbuttonimg = imread('Grafiken/DevelopmentButtong.png');
MainGui.developmentbutton = uicontrol('Style','pushbutton','Units','pixels','Position',[213,690,135,50],'FontSize',16,'Enable','inactive','CData',developmentbuttonimg);
startbuttonimg = imread('Grafiken/StartButton.png');
MainGui.startstopbutton = uicontrol('Style','pushbutton','Units','pixels','Position',[794,690,48,50],'CData',startbuttonimg,'FontSize',16,'Enable','inactive');
stopbuttonimg = imread('Grafiken/StopButton.png');
MainGui.stopbutton = uicontrol('Style','pushbutton','Units','pixels','Position',[866,690,48,50],'CData',stopbuttonimg,'FontSize',16,'Enable','inactive');
savebuttonimg = imread('Grafiken/savebutton.png');
MainGui.savebutton = uicontrol('Style','pushbutton','Units','pixels','Position',[929,690,48,50],'CData',savebuttonimg,'FontSize',16,'Enable','inactive');
resetbuttonimg = imread('Grafiken/reset.png');
MainGui.resetbutton = uicontrol('Style','pushbutton','Units','pixels','Position',[992,690,48,50],'CData',resetbuttonimg,'FontSize',16,'Enable','inactive');
MainGui.startcover = axes('Units','pixels','Position',[20,20,1280,660]);

% Startcover initialisieren
start_figure = imread('Grafiken/start_cover.png');
imshow(start_figure,'Parent',MainGui.startcover);
% GuiData speichern
guidata(MainFigure,MainGui);
set(MainFigure,'Visible','on');

end

[Geoff Hayes]

Ottavia - what happens if you step through the code with the MATLAB debugger? Are there any errors in the console logs?

[Walter Roberson]

search Answers for tag:always-parent

[Ottavia Rossini]

Hey,

There were no errors but I found the mistake.

In the code the position of push buttons is given in pixels, therefore using another screen would make them disappear.

Thank you for your help though!

[Walter Roberson]

also if you happen to be using a high resolution display on Mac or Windows, then the meaning of pixels units changed from physical to 1/72 inch or 1/100 inch (like the "points" unit)