example code and API to log a user on and create a session and desktop - looking for - for Windows 7

I am looking for example code and API to log a user on and create a session and desktop for开发者_如何学运维 Windows 7.

I need do this from a non-interactive process running as a service.

Not sure what you are trying to archive, but if you just want a new session and its desktop, check the LogonUser function sample. http://msdn.microsoft.com/en-us/library/aa379608(VS.85).aspx.

If you are trying to do graphics, check Windows 2008 RenderFarm Service: CreateProcessAsUser "Session 0 Isolation" and OpenGL