Thanks for the request, To program a FPGA target you must have the module Labview FPGA. So you cannot directly access the FPGA with LabWindows/CVI.
But there is a way. Firstly create with Labview a Host VI that communicate with the FPGA target and compile this VI into a dll and then call it from CVI program.
See the following link:
Can I Use a Programming Language Other Than LabVIEW with a Reconfigurable I/O Board?
LabWindows/CVI support for PXI 7831 R