In general terms using full diameter radius compensation, you need the G41 or G42 code and also a call for a "D_" value that corresponds to the register address where you inserted the current tool diameter (or radius) values. The D values are to be installed (by you) as you set up your tools for the program.
If you do not see G41 or G42 in your code, you should probably assume that the generated path is being compensated for the tool radius somehow. The way that you can tell, if you have a way of verifying the coordinates of each entity in the part profile, the toolpath will correspond to the part profile, ie., there will not be an offset, because it is assumed that your controller will be taking care of the offset for whatever tool radius you happen to pick. There are limitations and exceptions, of course, but that is the general idea.
FYI, radius compensation is usually only 'turned on' for a finish path, after the spindle has moved to Z depth, and turned off again (G40) just before the spindle retracts. Because the tool needs to 'move' from 'center tangent' to the path, to 'edge tangent', some allowance must be made when beginning and ending the path, for the tool to get into position. This is most often called a lead in and a lead out. This is an extra bit of code that the cam software must create for you, as you cannot begin with the tool right on the part profile without getting a gouge. If you haven't noticed this going on when creating the toolpath, you maybe should look a little further into the details.
First you get good, then you get fast. Then grouchiness sets in.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)