I have a game developed for Windows 7 in XNA which uses the Mouse Event only! There are buttons around the screen that the user plays with.
Will this same game work with Windows 7 Touch screens with a single touch? I do not need any multi-touch functionality.
If not, how do I get the touch event in XNA on a Windows 7 PC?
Touchscreens do send mouse events.
Though they might send mousestates pressed/released/moved a little bit differently depending on the model. For example the original single touch eeetop sometimes never sent a pressed state(got moved instead even if you just clicked), while the later multitouch versions worked as expected.