User Guide

ManualsBrandsMacromedia ManualsOtherFLASH MX 2004-ACTIONSCRIPT LANGUAGE REFERENCE

171

172

173

174

175

176

177

178

179

180

Camera.activityLevel 175

Camera.activityLevel

Availability

Flash Player 6.

Usage

active_cam.activityLevel:Number

Description

Read-only property; a numeric value that specifies the amount of motion the camera is detecting.

Values range from 0 (no motion is being detected) to 100 (a large amount of motion is being

detected). The value of this property can help you determine if you need to pass a setting to

Camera.setMotionLevel().

If the camera is available but is not yet being used because Video.attachVideo() has not been

called, this property is set to -1.

If you are streaming only uncompressed local video, this property is set only if you have assigned

a function to the

Camera.onActivity event handler. Otherwise, it is undefined.

Example

The following example detects the amount of motion the camera detects using the

activityLevel property:

The following example detects the amount of motion the camera detects using the

activityLevel property and a ProgressBar instance. Create a new video instance by selecting

New Video from the Library options menu. Add an instance to the Stage and give it the instance

name

my_video. Add a ProgressBar component instance to the Stage and give it the instance

name

activity_pb. Then add the following ActionScript to Frame 1 of the Timeline:

// video instance on the Stage.

var my_video:Video;

var activity_pb:mx.controls.ProgressBar;

var my_cam:Camera = Camera.get();

my_video.attachVideo(my_cam);

activity_pb.mode = "manual";

activity_pb.label = "Activity %3%%";

this.onEnterFrame = function() {

activity_pb.setProgress(my_cam.activityLevel, 100);

};

my_cam.onActivity = function(isActive:Boolean) {

var themeColor:String = (isActive) ? "haloGreen" : "haloOrange";

activity_pb.setStyle("themeColor", themeColor);

};