I should make the question more clear:
I want to use http://inkulator.sourceforge.net with Blender, so I need to export the location of what the camera is looking at. I think the camera info looks like that one of a line, which contains a start point and a end point. I know how to get the location of a camera, which corresponds to the start point, but how can I get the end point of the camera?
This code fails to get a correct value: add an Empty at (0,0,0), add a Camera and move it to some where. track (old fasion) the Camera to the Empty. clear the rotation of Camera (Alt+R). the code gives [0.0, 0.0, 0.0] instead of the true value :o
from Blender import *