How to use VCCLCompilerTool.UseFullPaths?

[AlwaysLearning]

Info here: http://msdn.microsoft.com/en-us/library/microsoft.visualstudio.vcprojectengine.vcclcompilertool.usefullpaths(v=vs.80).aspx#Y0

I'm trying to programmatically set /fc in VS by calling UseFullPaths, but I'm not sure how this is invoked. For one thing, I didn't even know there was such a thing as a property keyword in c++.

I'm just looking for how to use this function correctly.
Thanks.