Non-Apple Touchscreen Monitor MAC Mini Compatible

Apple don't explicitly support touch screens on Macs as indicated by QuickPost.

Saying that there have been the following two approaches.

1. The use of pen driven tablets, some of which also contain an LCD display built-in to them, e.g. Wacom
2. 3rd party touch screens typically originally designed for Windows but including Mac drivers.

The second category is clearly nearest to what you originally requested, these typically connect to the computer via both a screen display connector e.g. DVI and a USB connector. The USB connector is used to transfer the signals used to handle the touch screen aspect.

There even used to be a long time ago a Mac laptop which a company converted in to a purely touch screen Mac. (Looks like it still exists.) See - http://www.modbook.com/modbookpro

With regards to drivers for a Mac for using a touch screen with a 'standard' Mac see the following links.

https://www.touch-base.com/

https://www.beetronics.co.uk/download-driver

https://www.u-touch.co.uk/driver-downloads/

https://lilliputdirect.com/touchscreen-drivers

and many many more. Use Google.

I would however be concerned over the following.

1. I suspect already many are out of date and might have difficulties running under modern versions of macOS and hence may totally fail in Catalina or future macOS versions
2. Different brands of touch screen will likely need different drivers so check that a touch screen has a driver for the Mac available from the screen maker or whether there is an independent driver that supports that particular screen for the Mac

Note: Some screens and/or drivers may only support a subset of possible touch commands e.g. pinch to zoom, click, drag, etc. this might be done to how many 'fingers' it can simultaneously process.

It likely will not help but the trackpad on a MacBook or Apple's Magic Trackpad can be used for touch control but obviously not via the screen itself.

Hello,

macOS is not designed for touch.