External Viewport Render

Hello everyone,

Is there any projects or sample codes which implementes Viewport rendering outside of blender? I would like to start rendering via commands and visualize the rendering process in another program. Do you have any ideas for such projects? Is this what I am looking for or not - http://wiki.blender.org/index.php/Dev:2.6/Source/Render/RenderEngineAPI

I hope this is the right place to ask. If not, please excuse me and let me know where I should write.