MACROMEDIA FLASH MX 2004 - ACTIONSCRIPT - Page 104

104 Chapter 5: Creating Interaction with ActionScript
8 Enter the following actions:
onClipEvent (load) {
top = _y;
bottom = _y;
left = _x;
right = _x+100;
_x += 100;
}
onClipEvent (enterFrame) {
_parent.song.setVolume(_x-left);
}
9 Select Control > Test Movie to use the volume slider.
To create a sliding balance control:
1 Drag a button to the Stage.
2 Select the button and select Insert > Convert to Symbol. Select the movie clip property.
3 Select the movie clip and select Edit > Edit Symbol.
4 Select the button and select Window > Development Panels > Actions.
5 Enter the following actions:
on (press) {
startDrag ("", false, left, top, right, bottom);
dragging = true;
}
on (release, releaseOutside) {
stopDrag ();
dragging = false;
}
The startDrag() parameters left, top, right, and bottom are variables set in a clip action.
6 Select Edit > Edit Document to return to the main Timeline.
7 Select the movie clip on the Stage.
8 Enter the following actions:
onClipEvent(load){
top=_y;
bottom=_y;
left=_x-50;
right=_x+50;
center=_x;
}
onClipEvent(enterFrame){
if (dragging==true){
_parent.setPan((_x-center)*2);
}
}
9 Select Control > Test Movie to use the balance slider.
For more information about the methods of the Sound class, see the Sound class entry in
Chapter 12, “ActionScript Dictionary,” on page 205.