How to simulate middle mouse scroll in selenium?

[熊家继]

I'm handling some SVGs in web page. I need to use middle mouse scroll to zoom in/out. But I didn't find any method to simulate mouse scroll in selenium.

[David]

I wanted to automate same functionality. I don't think there is native support for this in Selenium, I could be wrong.

The closest I came in online searching was this:

http://stackoverflow.com/questions/6735830/how-to-fire-mouse-wheel-event-in-firefox-with-javascript

I haven't really debugged/tested it further but that code adapted for my framework didn't seem to work for me so far. Maybe you might have better luck.