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Editorial Team
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Asked: 2026-05-24T05:12:24+00:00

I am trying to build an MXML application with Flash Builder 4.5, and I

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I am trying to build an MXML application with Flash Builder 4.5, and I am integrating an API that requires the root of a display object to be a MovieClip. Personally I think this is bad design but I have to go with it. The root object always seems to end up as the stage, because of course I have to add the object to the stage for it to be added to the display list. Is there some way that I can either change the stage type in an MXML application to a MovieClip or is there some way to force a MovieClip wrapper to become the root of a display object?

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1 Answer

  1. Editorial Team

    Both mx Application and Spark Application inherit from Sprite, not MovieClip. Take a look at the inheritance chain at the top of

    mx Application docs

    Spark Application docs

    The third-party API can’t cast your Flex movie to MovieClip, because it’s not one.

    HTH;

    aMY

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