How can I change the icon of my AppDesigner-produced GUIs?

I would like to easily distinguage my GUI from the figures when pressing Alt+Tab so I can access it faster. Now when I run the GUIs they have the same icon as a regular figure...

[Image Analyst]

Exactly where is the icon appearing? In MATLAB? On your desktop? In File Explorer? For a program you compiled into a standalone executable? Attach a screenshot.

http://www.mathworks.com/support/solutions/en/data/1-324E1D/?solution=1-324E1D

[Micke Malmström]

I’m just running the mlapp-file...

[Marc McLean]

How do you change the icon in the upper left of the .mlappp GUI launched from AppDesigner?

[Mohammed Majid Msallam]

also me

Answer 1

[Cris LaPierre]

Starting with R2020b, you can now specify custom icons for UI figure windows and toolbar push and toggle tools. See the release notes here.

[Cris LaPierre]

The Icon property became available in regular figures starting in R2025a. See here.

Answer 2

[li li]

R2020b OR Last version

function startupFcn(app)

app.uifigure .Icon='logo.png';

end

OK!

Answer 3

[Robert]

Add this to your startupFcn:

t       = 0;
tMax    = 5;
dt      = 0.1;

while ~isfield(struct(struct(app.UIFigure).Controller), 'PlatformHost') && t < tMax
    % Keep waiting until the window is found.
    t = t + dt;
    pause(dt)
end

win = struct(struct(struct(app.UIFigure).Controller).PlatformHost).CEF;
win.Icon = 'C:\Folder\MyIcon.ico';

Of course, you may have renamed the UIFIgure property of your app.

In R2016b and older, replace 'PlatformHost' with 'Container'.