Stream games to Google Hangouts

[quartzite7]

Would like to use DXTory to stream games (World of Warcraft) to Google Hangouts (http://www.google.com/+/learnmore/hangouts/).

But currently the problem is that Hangouts only recognizes the device (Dxtory Video 1 to 4) but doesn't seem to be able to open them correctly -- it opens the device in a square-looking resolution and the video is all blank (black pixels). On the other hand Hangouts can open the ManyCam Virtual Webcam correctly and stream, only ManyCam doesn't seem to work with the game running in fullscreen mode.

Are there device API's that DXTory is not fully implementing so that Hangouts (and/or Chrome) cannot fully understand how to work with the virtual device?