Global Volume Slider (from library) to control drag and drop xml playlist

Question

hi there,
have spent some time doing tutorial and looking online but can't seem to get a volume slider functioning.
the scenario is :
3 circles which can be dragged over a target (one for each circle)
When the circle is placed on its target it loads its respective xml playlist into 4 buttons (play, pause, forward, back)
I want to be able to create some kind of function to control the volume, either using a slider or a rotary dial, whichever is easiest!
any help greatly appreciated!

Answer 1

Be sure you include the SoundTransform class...
import flash.media.SoundTransform;
Create a SoundTransform object
...named 'st' (I like short names). Create this AFTER the creation of your soundChannel object...
var st:SoundTransform = channel.soundTransform;
st.volume = 1;//This sets the volume to 100%
channel.soundTransform = st;//This associates your SoundChannel object with your SoundChannel object
Then, for simple testing of this
...create some new button...
halfVol_btn.addEventListener(MouseEvent.CLICK, doHalfVolume);
function doHalfVolume(e:MouseEvent):void{
   st.volume = .5;//This sets the volume to 50%
So, now you have a half-baked volume control. Nothing exciting, but this gets you acquainted with the volume part of what you want. You have created, and have access to, the st.volume property to set the volume to whatever you want, from 0 to 1.
Next, I'd suggest that you practice the creation of your own slider. Search online for tutorials on it, like I mention above (as a Flash programmer, this is something I, and you, end up doing - searching - dozens of times a week at times). In the end, the position of your knob/button/control in the slider is a %: What % is the location of the knob on the total width/height of the slider. This % is what you send to the st.volume property.
http://www.lmgtfy.com/?q=create+volume+slider+as3
As an alternative to create your own slider, you can also use the Flash "Slider" component:
http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/fl/controls/Slider.html
...but this, too, requires some getting-up-to-speed with using it.
Good luck. If you want some actual code examples - you'll find plenty online :-)