Zoom Control - Preview before you View The Zoom Control lets you detail any Flex display object without actually clicking on the object. Typical usage is to call the control’s zoom show event on mouse rollover so that users can get more details of the display object, without actually leaving the page. Features Zoom any content Precise Zoom window positioning with X-Y Offseting capability relative to the zoomed object Pleasing Zoom effects and filters on the ItemRenderer Extremely customizable Item Renderer Supports Arrow Tip pointer back to the component being zoomed Will work on tree and list controls as well. Can also be used as an alternative to the Tooltip as it is a lot more flexible, can support images, text and be styled very flexibly.