CV.Drawing.floodfill does not return the floodfilled area

[mavavilj]

Using the OpenCV Python API I was able to get the floodfilled area as the return value of floodfill (http://docs.opencv.org/modules/imgproc/doc/miscellaneous_transformations.html#floodfill) This is not the case with the Haskell CV bindings.

What would be an equivalent solution in CV for finding/extracting an area (precisely, its bounding rectangle) found by floodfilling?