I found a brute force solution. Apple's Magic Mouse multi touch feature continues to annoy me in Windows 7 PI running via BootCamp on a MacBook Air. A slight touch of my finger on the mouse causes PI to invoke its zoom mechanism. For example, image windows zoom and the histogram's zoom controls change on the slightest finger surface movement. For me at least, the multi touch feature seems hypersensitive. I am constantly zooming my windows inadvertently.
I think what is going on is that touch events are converted into mouse wheel motions, which PI maps to a zoom function. Unfortunately Window 7's mouse control panel supports neither mouse wheel disabling nor touch sensitivity adjustments. At least I cannot find anywhere in Windows 7 to make these changes.
So here is my solution: First, download and install
www.autohotkey.com. Second, create the file DisableMultiTouch.ahk with the following script. Double click the file to launch the script. The script detects and destroys all mouse wheel motion events.
A side effect of course is that wheel motion is disable for all programs. However I find it easy to stop the script when necessary via its tool bar icon.
#MaxHotkeysPerInterval 1000
WheelDown::
return
WheelUp::
return
WheelLeft::
return
WheelRight::
return