getVolume (Sound.getVolume メソッド)

var my_sound: Sound = new Sound();
my_sound.loadSound("song3.mp3", true);

this.createEmptyMovieClip("knob_mc", this.getNextHighestDepth());

knob_mc.left = knob_mc._x;
knob_mc.right = knob_mc.left+100;
knob_mc.top = knob_mc._y;
knob_mc.bottom = knob_mc._y;

knob_mc._x = my_sound.getVolume();

with (knob_mc) {
    lineStyle(0, 0x000000);
    beginFill(0xCCCCCC);
    moveTo(0, 0);
    lineTo(4, 0);
    lineTo(4, 18);
    lineTo(0, 18);
    lineTo(0, 0);
    endFill();
}

knob_mc.createTextField("volume_txt", knob_mc.getNextHighestDepth(), knob_mc._width+4, 0, 30, 22);
knob_mc.volume_txt.text = my_sound.getVolume();

knob_mc.onPress = function() {
    this.startDrag(false, this.left, this.top, this.right, this.bottom);
    this.isDragging = true;
};
knob_mc.onMouseMove = function() {
    if (this.isDragging) {
    this.volume_txt.text = this._x;
    }
}
knob_mc.onRelease = function() {
    this.stopDrag();
    this.isDragging = false;
    my_sound.setVolume(this._x);
    
};