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Editorial Team
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Asked: 2026-05-27T05:57:42+00:00

I got two AS3 functions. One that toggles fullscreen and one that is called

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I got two AS3 functions. One that toggles fullscreen and one that is called with javascript with ExternalInterface that only logs “Hello World”.

Both works well in the browser, but if I try to call the fullscreen function with javascript the same way, i get an error like this:

Error calling method on NPObject!

I googled that problem but that only had something to do with same domain access, and sinced it worked with the other function, it has to be something else.

What am I doing wrong?

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1 Answer

  1. Editorial Team

    The fullscreen mode can only be set by user input. So I’m affraid calling it from javascript is not allowed.

    Full-screen mode is initiated in response to a mouse click or key
    press by the user; the movie cannot change Stage.displayState without
    user input. Flash runtimes restrict keyboard input in full-screen
    mode. Acceptable keys include keyboard shortcuts that terminate
    full-screen mode and non-printing keys such as arrows, space, Shift,
    and Tab keys. Keyboard shortcuts that terminate full-screen mode are:
    Escape (Windows, Linux, and Mac), Control+W (Windows), Command+W
    (Mac), and Alt+F4.

    http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/display/Stage.html#displayState

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