There's..
onScrolled(newposx,newposy,deltax,deltay) - either the horizontal or vertical scrollbar has been moved
You could probably use that event and do something like this..
PHP Code:
function scrollgui.onScrolled(newposx,newposy,deltax,deltay) {
// Prevent scrolldelta from causing an infinite loop
if (this.scrolled) {
this.scrolled = false;
return;
}
this.scrolled = true;
// Scroll
scrollgui.scrolldelta(0, 16 * (deltay > 0 ? 1 : -1));
}
Docs:
http://wiki.graal.net/index.php/Crea.../GuiScrollCtrl