I'm creating an UI app on a Raspberry Pi running Java11. This work quite well after I raised the GPU memory. But to be more useful I don't want to connect a mouse/keyboard/monitor to the Pi and connect to it via VNC. But the app do not show in the VNC window, I can only see it on a monitor connected to the HDMI port.
I've try like suggested on some site to connect via "RpiIP":1 but this not show the app either. Is someone know how to connect via VNC and see and control the running app?
Thank you.