ActionScript 2.0 Language Reference - Adobe Help and Support

trace(bitmap_1.width); // 100
trace(bitmap_1.height); // 80
trace(bitmap_1.transparent); // true
var bitmap_2:BitmapData = new BitmapData(width, height);
trace(bitmap_2.width); // 100
trace(bitmap_2.height); // 80
trace(bitmap_2.transparent); // true
clone (BitmapData.clone method)
public clone() : BitmapData
Returns a new BitmapData object that is a clone of the original instance with an exact copy of
the contained bitmap.
Availability: ActionScript 1.0; Flash Player 8
Returns
BitmapData - A new BitmapData object that is identical to the original.
Example
The following example creates three BitmapData objects and compares them. You can create
the bitmap_1 instance by using the BitmapData constructor. You create the bitmap_2
instance by setting it equal to bitmap_1. You create he clonedBitmap instance by cloning
bitmap_1. Notice that although bitmap_2 evaluates as being equal to bitmap_1,
clonedBitmap does not, even though it contains the same values as bitmap_1.
import flash.display.BitmapData;
var bitmap_1:BitmapData = new BitmapData(100, 80, false, 0x000000);
var bitmap_2:BitmapData = bitmap_1;
var clonedBitmap:BitmapData = bitmap_1.clone();
trace(bitmap_1 == bitmap_2); // true
trace(bitmap_1 == clonedBitmap); // false
for(var i in bitmap_1) {
trace(">> " + i + ": " + bitmap_1[i]);
// >> generateFilterRect: [type Function]
// >> dispose: [type Function]
// >> clone: [type Function]
// >> copyChannel: [type Function]
// >> noise: [type Function]
// >> merge: [type Function]
// >> paletteMap: [type Function]
BitmapData (flash.display.BitmapData) 307