OpenRoads API

I would like to use the SDK and open the OpenRoad application and create a alignment from the code. 

Can anyone help me identifying the API / COM object / dll file to start my code. 

Also i want to an existing file in OpenRoads from Code. 

Any help regarding the API is appreciated. The help in the forums and the Bentley product help is very less with respect to API. 

Thank you in advance