User Guide

314 ActionScript classes

var mc:MovieClip = this.createEmptyMovieClip("mc",

this.getNextHighestDepth());

mc.attachBitmap(myBitmapData, this.getNextHighestDepth());

trace("0x" + myBitmapData.getPixel(0, 0).toString(16)); // 0xcccccc

See also

getPixel32 (BitmapData.getPixel32 method)

public getPixel32(x:Number, y:Number) : Number

Returns an ARGB color value that contains alpha channel data and RGB data. This method is

similar to the

getPixel() method, which returns an RGB color without alpha channel data.

Availability: ActionScript 1.0; Flash Player 8

Parameters

x:Number - The x position of the pixel.

y:Number - The y position of the pixel.

Returns

Number - A number that represent an ARGB pixel value. If the (x, y) coordinates are outside

the bounds of the image, 0 is returned. If the bitmap was created as an opaque bitmap and not

a transparent one, then this method will return an error code of -1.

Example

The following example uses the

getPixel32() method to retrieve the ARGB value of a pixel

at a specific x and y position:

import flash.display.BitmapData;

var myBitmapData:BitmapData = new BitmapData(100, 80, true, 0xFFAACCEE);

var mc:MovieClip = this.createEmptyMovieClip("mc",

this.getNextHighestDepth());

mc.attachBitmap(myBitmapData, this.getNextHighestDepth());

var alpha:String = (myBitmapData.getPixel32(0, 0) >> 24 &

0xFF).toString(16);

trace(">> alpha: " + alpha); // ff

var red:String = (myBitmapData.getPixel32(0, 0) >> 16 & 0xFF).toString(16);

trace(">> red: " + red); // aa