how to set the up arrow as a usable button in matlab in matlab

To set up arrow as a usable button in GUI in Matlab, follow these steps:

Create a GUI
Add a push button to the GUI
Set the 'KeyPressFcn' property of the button to a function that will perform the desired action when the up arrow key is pressed.

Here is an example implementation:


main.m
function myGUI()
    % create GUI
    hFig = figure('units','normalized','outerposition',[0 0 1 1],'menubar','none');
    
    % add push button to GUI
    hBut = uicontrol(hFig,'Style','pushbutton','units','normalized','position',[0.4 0.4 0.2 0.2],'string','UP');
    
    % set KeyPressFcn property of push button
    set(hBut,'KeyPressFcn',@upArrow)
    
    % function that will be called when up arrow is pressed
    function upArrow(src,evt)
        if strcmp(evt.Key,'uparrow')
            % perform desired action here
        end
    end
end
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In this example, the 'KeyPressFcn' property of the push button is set to the 'upArrow' function. When the up arrow key is pressed, the 'upArrow' function checks if the pressed key is equal to the up arrow key. If it is, the desired action can be performed.

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