flex sprite startDrag bounds

There is a method in the Sprite class

named startDrag.

One of its parameters is bounds:Rectangle.

Now, when I first tried to use it I thought,

it specified the bounds of the complete sprite,

i.e. the rectangle inside which the sprite will

be forced to stay.

1. But it is actually the bounding rectangle for the 

topLeft point of the sprite.

So, during the dragging, the topLeft point of the sprite

will be forced to stay in this rectangle.

2. Also, the x & y for the bounding rectangle are wrt

 to the parent of sprite.

3. Also, if you have applied some scaling transformations on 

your sprite, you should take that into account while specifying

x,y,width,height for your bounding rectangle.