Prevent Sketch from closing?

[Kevin]

Googling for “Processing setUndecorated” will return a ton of results. Or you could search this forum:

Is setUndecorated() possible?

I have 2 windows that I’m creating with the frames example of the controlP5 library. One works as the control window for sliders etc and the other the main sketch window where the artwork gets displayed. I have 2 monitors. Using fullScreen(2) runs the main sketch window as fullscreen. However, the control window is much smaller say size(400,800); I don’t want the title bar and close/minimize buttons at the top. Has setUndecorated() been completely removed in processing 3? If so how may I ac…

Is it possible to not have the generic windows close buttons and make your own close button?

So I’m talking about applications like discord, they don’t have that ugly windows border around their application, the league of legends client also doesn’t have it, Photoshop also has a custom one. So I know it’s possible but is it possible in processing? And if not, in what language would this be possible?