Adding a glow to a programatically drawn shape is very easy in actionscript. We just need to create the GlowFilter object and apply it to the filters property. A quick example is follows
var whiteGlow:GlowFilter = new GlowFilter(0xFFFFFF, 0.8, 30, 30, 1, 1, false, false);
var sp:Sprite = new Sprite();
this.addChild(sp);
sp.graphics.drawCircle(100,100,50);
sp.filters = [whiteGlow];
That’s it. Similary you can add other filters such as GradientFilter, BlurFilter, etc. For a detail list of the available display filters refer the livedocs : Available Display Filters.
Happy Coding guys. 
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Tags: actionscript, as3, filters, flex, glow filter, shape
