The parameter menu pops up when changing menu items in the settingsmenu of the type MENU_ITEM_TYPE_DROPDOWN:
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It currently supports up to seven items as dropdown list.
old C-based firmware parameter menu drawing code:
https://github.com/apertus-open-source-cinema/AXIOM-Remote/blob/master/AXIOM_Remote_Prototype_V01.X/menu.c#L451
What would be a good c++ structure to implement it again?
more functionality can be seen in this video:
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