Within a GUI created with App Designer can I call a function associated with one button inside the code for a different button?

I have the code below associated with the EXIT button of my GUI. Can I call this function inside the code for a different button? If so, how?

% Button pushed function: EXITButton

function EXIT(app, event)

if isfile( '_TEMP_.jpg' )

delete( '_TEMP_.jpg' )

end

if isfile( '_PREV_.jpg' )

delete( '_PREV_.jpg' )

end

if isfile( '_CURR_.jpg' )

delete( '_CURR_.jpg' )

end

close all

app.delete

end

Answer 1

[Kevin Holly]

When you create a new function, you can just call that function.

function differentButton(app, event)
    EXIT(app)
end

[Stuart Smith]

If I use

Preset2Button( app )

App Designer tells me to use

app.Preset2Button( app )

and gives me a FIX button to make this change. If I make the change and then run my app, I get the following error message ("destroyer3" is the name of my app):

Unable to use a value of type destroyer3 as an index.

Error in destroyer3/GO (line 452)

app.Preset2Button( app )

Error in matlab.apps.AppBase>@(source,event)executeCallback(ams,app,callback,requiresEventData,event) (line 62)

newCallback = @(source, event)executeCallback(ams, ...

Error while evaluating Button PrivateButtonPushedFcn.

[Kevin Holly]

is Preset2Button defined as a property value? Is it a UIComponent and not the function?

Is PrivateButtonPushedFcn or Preset2ButtonPushedFcn your function? If so, you should call that.

Preset2ButtonPushedFcn(app)

[Kevin Holly]

See the app attached for an example.

[Stuart Smith]

This worked. Thanks! I still have a question about how to get answers to questions like this about App Designer on my own. Is there a manual or comprehensive tutorial?

[Kevin Holly]

Documentation:

https://www.mathworks.com/help/matlab/app-designer.html

Offered Training Courses:

https://www.mathworks.com/learn/training/building-interactive-applications-in-matlab.html

https://www.mathworks.com/learn/training/advanced-matlab-application-development.html