PathInfo and V_flag

I made a new path via the Misc->New Path... dialog. Shortly afterward I deleted the directory that path was pointed to. I thought calling PathInfo would put the truth of whether the directory exists in V_flag. It seems to instead put the truth of whether the path exists in Igor. I probably misinterpreted what PathInfo does.

I was trying to do this:

PathInfo $pathName
If ( !V_flag )
    return -1
endif

But I think it should work like this:

PathInfo $pathName
GetFileFolderInfo/D/Q/Z S_path
If ( V_flag )
    return -1
endif