using multiple keyboard inputs simultaneously

I trying to create a game in MATLAB that when it plays it requires you to use multiple keys on the keyboard, multiple keys must be pressed at the same time, I don't know how I would get this to work.

Answer 1

[Geoff Hayes]

Isaiah - what are the multiple keys that can be pressed? If one of the keys is the shift or command/control or alt, then that would appear as a "modifier" in the keypress eventdata:

function keyPressListener
    hFig = figure;
    hAxes = gca;
    set(hFig,'WindowKeyPressFcn',@keyPressCallback);
    
    function keyPressCallback(source,eventdata)
        % eventdata has character, modifier, and key fields
        eventdata
    end
end

If I run the above code, and press (say) shift + a, then I would see

eventdata = 

    Character: 'A'
     Modifier: {'shift'}
          Key: 'a'

Note that this probably will only work if at least one of your keys is a modifier.

[Isaiah Buell]

No modifiers, I'm pressing things keys like 'a' and 'b' at the same time.