thanks draco1962 I ll try to explain
in gameex if I use panaosic3d0 (with its own emulator) or amiga Atari megardive master system with their own emulators I have for each game their marquee on second monitor
in mame dosent appear. I ve passed from .219 to 254 rom and chd , updated mameui and tried to use mame 254. originally I have the marquee also when scroll games in gameex but now when I scroll games or launch games on second display I have only my desktop
i ve enabled marquee masher (if I remember correctly the name).
i ve disabled on mame.exe in mame.ini second monitor and marquee view but nothing happen.
who decide the marquee on second monitor? the emulator or the gameex frontend. thanks for your precious help