Sprite to bitmap data?

[Softwave]

How do I go about adding a sprite to bitmap data? 

 

I can use 

bmd.draw('sprite');

and that seems like it works but apparently the sprites pixels don't get added to the bitmap data so I can do things with it? I've also tried 

bmd.copy('sprite');

And the image shows up initially but doing anything with bmd.processPixelRGB makes the added image disappear and evidently it's the pixels aren't actually added to bitmapdata? 

 

[Softwave]

Figured it out. Calling 

bmd.update();

does what I needed.