I suppose you could use CMake to generate projects for Visual Studio, as well as various other development systems. I don't think U++ is supported, though, and have no idea how to add support. There was a post related to CMake and included CMakeLists.txt files for building TheIDE and using that route you could conceivably generate Visual Studio projects, so those files might give some insight into how it's done:
I don't know how involved this process would be, but it might be a place to start looking. My suspicion is that CMake could be extended to support U++ with relatively less effort than other systems because the project files are simpler.
You might also be able to get somewhere with umk and custom build rules.
I can't think of any ridiculously easy way to do this.