I am trying to recall if anything in the Laszlo runtime library loads sound from an external source when the LFC is initialized, but I don't think so.
On Sun, Mar 21, 2010 at 9:08 AM, Lucas Lain <[email protected]> wrote: > I can see the red line now! :) > The security error shows up when computeSpectrum is called. > I found this: > > "the Error #2121 happens when you try to call the computeSpectrum > function when another flash file with sound is loaded from a different > domain. > For example, if you have youtube open when trying to view a flash file > that uses computeSpectrum, it will fail because youtube did not grant > your domain access to get its sound info.... > It appears the only "solution" is to put your computeSpectrum in a > try/catch block (or use areSoundsInaccessable method before calling > computeSpectrum ) and simply notify the user that a flash file in a > different window is interfering with your sound visualizations!" > > But I'm not using flash in any window :( > > > On Sun, Mar 21, 2010 at 9:46 AM, Henry Minsky <[email protected]> > wrote: > > I tried to compile and run your example, as follows, and it ran without > > error for me. It displayed a red line > > > > <canvas> > > <class name="spectrum" extends="view"> > > <passthrough> > > import flash.display.Sprite; > > import flash.display.StageAlign; > > import flash.display.StageScaleMode; > > import flash.events.*; > > import flash.media.Sound; > > import flash.media.SoundChannel; > > import flash.media.SoundMixer; > > import flash.media.SoundTransform; > > import flash.net.URLRequest; > > import flash.utils.Timer; > > import flash.geom.Matrix; > > import flash.utils.ByteArray; > > import flash.text.TextField; > > import flash.text.TextFieldAutoSize; > > import flash.text.TextFormat; > > </passthrough> > > > > <attribute name="_ba" value="null"/> > > <attribute name="_gr" value="null"/> > > <method name="init"><![CDATA[ > > this._ba = new ByteArray(); > > this._gr = new Sprite(); > > this._gr.x = 20; > > this._gr.y = 200; > > > > canvas.sprite.addChild(this._gr); > > > > var time:Timer = new Timer(50); > > > > time.addEventListener(TimerEvent.TIMER, timerHandler); > > time.start(); > > ]]> > > </method> > > > > <method name="timerHandler" args="e:Event"><![CDATA[ > > > > var ba:ByteArray = this._ba; > > var gr:Sprite = this._gr; > > > > SoundMixer.computeSpectrum(ba, true); > > var i:int; > > gr.graphics.clear(); > > gr.graphics.lineStyle(0, 0xFF0000); > > gr.graphics.beginFill(0xFF0000); > > gr.graphics.moveTo(0, 0); > > var w:int = 2; > > for (i=0; i<512; i+=w) { > > var t:Number = ba.readFloat(); > > var n:Number = (t * 100); > > gr.graphics.drawRect(i, 0, w, -n); > > } > > ]]> > > </method> > > </class> > > <spectrum/> > > > > </canvas> > > > > Do you have the Flash player installed? > > Try running either in backtrace mode or without debugging enabled, and > see > > if you can > > get more information about where the errors is coming from. In backtrace > > mode, you can click on the error to inspect it. In non-debug mode, the > Flash > > debug player will give you a native Flash backtrace. > > > > > > On Sun, Mar 21, 2010 at 8:38 AM, Lucas Lain <[email protected]> > wrote: > >> > >> Hello Henry, > >> > >> Thank you for your answer. I modified the code and I can compile now. > >> > >> But I can't see the sprite, and I'm getting a runtime error: > >> > >> ERROR @spectrum.lzx≈46: SecurityError: Error #2123 > >> > >> Any Ideas? Could you use this class? > >> > >> Best! > >> > >> L. > >> > >> > >> On Sun, Mar 21, 2010 at 1:47 AM, Henry Minsky <[email protected]> > >> wrote: > >> > Also you will need an extra arg to your handler method > >> > > >> > <method name="timerHandler" args="e:Event"> > >> > > >> > Because the contract for a AS3 event listener is that it needs to > accept > >> > one > >> > argument. > >> > > >> > "This function must accept an Event object as its only parameter and > >> > must > >> > return nothing" > >> > > >> > > >> > > >> > > >> > On Sat, Mar 20, 2010 at 11:39 PM, Henry Minsky < > [email protected]> > >> > wrote: > >> >> > >> >> To get the sprite, just "canvas.sprite" ought to work, although the > >> >> cross > >> >> platform API to get the sprite is canvas.getDisplayObject() > >> >> > >> >> > >> >> > >> >> On Sat, Mar 20, 2010 at 5:21 PM, Lucas Lain <[email protected]> > >> >> wrote: > >> >>> > >> >>> Hello everybody, > >> >>> > >> >>> does anyone know how to add a sprite to an openlaszlo canvas or > view? > >> >>> > >> >>> I wrote/modified the attached class to visualize the sound spectrum. > >> >>> > >> >>> This line is the one supposed to do the trick: > >> >>> > >> >>> canvas.content.sprite.addChild(this._gr); > >> >>> > >> >>> > >> >>> Best! > >> >>> > >> >>> > >> >>> -- > >> >>> Lucas > >> >> > >> >> > >> >> > >> >> -- > >> >> Henry Minsky > >> >> Software Architect > >> >> [email protected] > >> >> > >> >> > >> > > >> > > >> > > >> > -- > >> > Henry Minsky > >> > Software Architect > >> > [email protected] > >> > > >> > > >> > > >> > >> > >> > >> -- > >> Lucas > > > > > > > > -- > > Henry Minsky > > Software Architect > > [email protected] > > > > > > > > > > -- > Lucas > -- Henry Minsky Software Architect [email protected]
