detect when rca or hdmi is used?

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    So here’s a though one, or at least I couldn’t figure it out.
    I have my retropie on an arcade control panel, so you can plug it and enjoy it on any tv… and that’s the problem.

    If I set some shader to look nice as scanlines on hdtv, then it sucks when connected to rca.
    If I disable any shader and connect to a hdtv, then it sucks too, although it looks nice on smaller tvs with rca…

    Is there any way to enable/disable shaders when it is connected through rca or hdmi? or a hotkey to enable/disable them that I could remap to a button combination?

    I’ve found how to assign next/back shader as hotkeys, but I just have the player’s buttones, so I would need something like “1p+coin” or “2p+coin” (as example) to just enable or disable shaders

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