this solution :
“First finger holds widget. This activates system to zooming mode. With another two fingers you can freely zoom any part of the screen.”
This is implementable almost fine.
I know what you want, you want something like working with photos. With two fingers you do zoom in/zoom out. But there are none other complicated actions like longpress, double tap, two point tap and all widget collision types. mDosbox has really complicated control system of widgets and gestures. They all interact together and adding two point zooming will be nightmare. But…I will know more when I start working on that. And at the end…maybe we can recycle “two – point gesture” and instead mouse action it can do zooming. I must think about it. It’s really hard task.