Zoom with mouse scroll

how do something like that?

Insert a mouse object on layer, then capture the scroll-wheel via an event.

If you add sub-events detecting if it's going up or down, then increment zoom based on that.

I'll do an example when I get home if no-one has done in meantime.

Did you get this working?

i do something with mouse scroll, change layout size when scroll up 'zoom in 1/2' or scrool down 'zoom out 1/2' But i dont kono how to do smoothly

I made a quick example, hopefully I didn't make it too complex ahah - it's just got some stuff in there so you can customize the amount of zoom and speed, also to do it smoothly, and a little bit faster if you're rolling the mouse fast.

http://www.johnnysix.net/games/MouseZoom/

http://www.johnnysix.net/games/MouseZoom/MouseZoomExample.capx