transparent (BitmapData.transparent property)

public transparent : Boolean [read-only]

Defines whether the bitmap image supports per-pixel transparency. You can set this value only when you construct a BitmapData object by passing in true for the transparent parameter. After you create a BitmapData object, you can check whether it supports per-pixel transparency by seeing if the value of the transparent property is true.

Availability: ActionScript 1.0; Flash Player 8

Example

The following example shows that the transparent property of the Bitmap instance is read-only by trying to set it and failing:

import flash.display.BitmapData;

var myBitmapData:BitmapData = new BitmapData(100, 80, false, 0x00CCCCCC);

var mc:MovieClip = this.createEmptyMovieClip("mc", this.getNextHighestDepth());
mc.attachBitmap(myBitmapData, this.getNextHighestDepth());
trace(myBitmapData.transparent); // false

myBitmapData.transparent = true;
trace(myBitmapData.transparent); // false

Version 8

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Current page: http://livedocs.adobe.com/flash/8/main/00001970.html