I think I've seen info about this but it's been a long time and I can't find anything about it by searching either Google, or these forums. I think I just can't think of correct search terms for it.
I've got a 4 player MAME cabinet running on Windows 7, and I use an I-PAC 4 as the interface (though I don't think I-PAC itself is anything to do with the issue). I built it about 7 or 8 years ago.
When we are playing multi-player games, especially with a lot of frantic action, sometimes the game randomly exits back to Windows. I can still see that MAME is running in the background, it's just lost focus.
If I recall, the cause is because in the frantic action, we end up hitting some key combination (since the I-PAC just mimics a keyboard) that Windows recognizes that performs some action in Windows that toggles us out of the game.
But I've never been able to identify the specific combination of joystick position and/or button presses that causes it. When it happens, the game action is too frantic to identify exactly what moves/presses cause it.
Is this already documented somewhere that someone can point me to that perhaps tells me what specific keys I should remap for which joystick positions or buttons? Or I do recall the cause incorrectly, and it's something else that someone can point me toward?
Thank you.