[Feature] Expose quit game menu/method to ZScript/MENUDEF

[jekyllgrim]

GZDoom version

GZDoom 4.13

Which game are you running with GZDoom?

None

What Operating System are you using?

Windows 10

If Other OS, please describe

No response

Relevant hardware info

No response

Is your feature request related to a problem? Please describe.

Judging by my research of the source code, there's no way to customize the quit game prompt in a mod as of now.

Describe the solution you'd like

I'd like to be able to define my own visuals, including a font, for the quit message, or, at the very least, an exit game method to be exposed to ZScript in some form so a custom menu could be built.

Describe alternatives you've considered

No response

Add any other context or screenshots about the feature request here.

No response

[RicardoLuis0]

there isn't really any "menu" to expose, "menu_quit" just spawns a regular messagebox menu and exits the game if it returns true, but an alternative would be to add ListMenuItemSafeCommand as a counterpart to OptionMenuItemSafeCommand that could do the same funcitonality with a custom prompt

[MajorCooke]

Sounds like that solution would also solve my conundrum with trying to add a "mustconfirm" type of menu with only no skills defined while in a game to prevent people from accidentally immediately entering a new game.