[R-gui] Interface for Edit-Plus Editor

I'm trying to develop an interface between R and the Editplus editor (for Windows). http://www.editplus.com/
Editplus can be customized to send files and selected text to an external program and capture the output.
I've tried using batch commands to R etc. without much success. Does anyone have experience they could share with me about interfacing editors to R in windows?

Thanks,
Greg Riddick