C++. Get all points (coordinates) from VGPath?

C++. Get all points (coordinates) from VGPath?

I use MonkSVG for drawing and it stores points inside a variable of type
typedef VGHandle VGPath;
I need to find the smallest rect which contains all the points of VGPath.
So I need to get all the points from this variable. I don't need
additional modifiers from SVG file such as "move_to", "line_to" and e.t.c.
As I see separate points could be stored using the following functions
from OpenVG/MonkVG:
vgAppendPathData
vguRect
...