if connect a touch screen monitor LCD display this should function both in mac & win8

I plan buy An Apple Mini mountain lion and install Parallels vm and guest win 8...

if connect a touch screen monitor LCD display this should function both in mac & win8????

 

I have this setup (Macbook Pro, early 2011, not mini, but still), and my touchscreen only truly works when the USB touch device is mapped to Windows 8. If I touch it, even without parallels running, while it's mapped to the Mac, it moves the cursor to the upper left-hand corner of the left-most monitor, and won't move from there.

 

I have a Dell 27inch Touch Screen (P2714T) and Parallels 9 running on iMac with Mavericks - If I use the USB cable to connect the Dell as second monitor - Will the Touch Screen work for Windows 8.1 that I have installed on Parallels - If not - Is there ANY way to make this work? At present I have used the HDMI connection and absolutely no touch response and the Dell moniotr manager on the windows side doesn't "see" the monitor - Only the Paralells interface. It seems like there should be "something" given the touchscreen market and Windows 8.1.. Any Help is Hugely appreciated!