Stage Quality of Flex App automatically changes zu LOW

Hi there.
I have an issue with setting the stage quality of the
flashplayer to
high which is default.
I set the quality in my HTML-Container to HIGH and in my flex
application with stage.quality = StageQuality.HIGH;
But after a couple of seconds the quality automatically
changes to low.
Is this a bug?
I'm using Flexbuilder 3b3.

stissing,
I'm seeing this in other Button based controls as well
(LinkButton, Button, CHeckBox, RadioButton).
I filed a bug at
http://bugs.adobe.com/jira/browse/SDK-19353
Thanks,
Peter

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Windows XP
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Flash player 9 or 10
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program source code:
<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
<![CDATA[
   import mx.core.UIComponent;
   private function sample(event:Event):void{
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    var bmpCanvas:BitmapData = new BitmapData(txtf.textWidth, txtf.textHeight, true, 0x000000);
    var bmpResult:BitmapData = new BitmapData(txtf.textWidth, txtf.textHeight, true, 0x000000);
    stage.quality = StageQuality.BEST;
    bmpCanvas.draw(txtf);
    var myMatrix:Matrix = new Matrix();
    myMatrix.a = myMatrix.d = 1;
    myMatrix.scale(1/3, 1/3);
    bmpResult.draw(bmpCanvas, myMatrix, null, null, null, true);
    var bm:Bitmap = new Bitmap(bmpResult, PixelSnapping.ALWAYS, true);
    var ui:UIComponent = new UIComponent();
    ui.addChild(bm);
    cvs.addChild(ui);
]]>
</mx:Script>
<mx:Canvas x="10" y="10" width="200" height="200" backgroundColor="#FFFFFF" id="cvs" click="sample(event)">
</mx:Canvas>
</mx:WindowedApplication>

Hi!
It may be good with UIComponent.
for example...
- stage.quality = StageQuality.BEST;
- var bm:Bitmap = new Bitmap(<your base BitmapData>, PixelSnapping.AUTO, true);
- var ui:UIComponent = new UIComponent();
- ui.addChild(bm);
- var matrix:Matrix = new Matrix();
- matrix.scale(1/3, 1/3);
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In this article you can set the stage quality to 16X16LINEAR. I'm not able to do this in my AIR app:
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
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From Adobe docs:
"In the desktop profile of Adobe AIR, quality can be set to StageQuality.BEST or StageQuality.HIGH (and the default value is StageQuality.HIGH). Attempting to set it to another value has no effect (and the property remains unchanged). In the moble profile of AIR, all four quality settings are available. The default value on mobile devices is StageQuality.MEDIUM."
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Stage Quality of Flex App automatically changes zu LOW

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