getPixel32 (BitmapData.getPixel32 method) -- Flash CS3

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.

Parameters

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

var green:String = (myBitmapData.getPixel32(0, 0) >> 8 & 0xFF).toString(16);
trace(">> green: " + green); // cc

var blue:String = (myBitmapData.getPixel32(0, 0) & 0xFF).toString(16);
trace(">> blue: " + blue); // ee

trace("0x" + alpha + red + green + blue); // 0xffaaccee

getPixel32 (BitmapData.getPixel32 method)

Parameters

Returns

Example

See also