scrolltest.ahk (autohotkey on Windows):
Sleep, 2000
Send {WheelDown}
Sleep, 300
Send {WheelUp}
Sleep, 300
Send {WheelRight}
Sleep, 300
Send {WheelLeft}
If AHK is installed just double-click to execute. Remember to click the target window for focus.
Scrolls vertically but not horizontally in Tixati 3.19 on Windows 7, confirmed.
Tixati 3.16: both scroll directions work.