MATLAB Engine API dll

Does anybody have a 'standard or generic' C++ dll to invoke the MATLAB Engine API commands? I'm trying to call MATLAB from a Windows C# program. I'm sure I'm not the first or last person to want to do this. I have reviewed the engwindemo.c source code, but I don't understand the use of the output buffer to return the results to the calling program. Doesn't engGetVariable return the result into the specified variable?

I have MATLAB version 2015a 64bit. Any help would be greatly appreciated.

[James Tursa]

The output buffer is for retrieving screen output, whereas the engGetVariable gets actual variables.

[Gary]

Thank you James, that makes sense now.