Can i change the place of the drawing item in CListCtrl in run time ?

I need to "move" a little to right the place that my item will be draw in run time.
What i mean is that in drawing some list item - i want to move the drawing item to right a little bit ==> I thought to use method ::OnCustomDraw(...) to change the drawing CRECT coordination (something like Rec.x += 20) - but i don't see any affect on the my UI.

Someone can help me ?

Thanks.