Bitmap pixel test

1

I cant get this bitmapData hit test
working.

I have a btmapdata and i want to test a point (10,10) to see
if it lies inside the bitmapdata. Not the rectangle the image is in but if a
point lies inside a pixel area (not alpha area).

I test the collision
inside a gameloop which is inside a document class.
It doesnt recognise the
bitmap,bitmapdata variable even when I use import for this variable

public class Main extends MovieClip {
…
…
var myimg:Bitmap; // 1046: Type was not found or was not a compile-time constant: BitmapData.

var bmpdata:BitmapData;
var myRect:Rectangle ;
…
…
if(bmpdata.hitTest(new Point(bmpdata.x, bmpdata.y),
255,
Point //not sure what i put here for point,

                                new Point(10, 10),
                                    255 ))
           {