For "automatic information flow control inside fpga from windows" I guess it is very unlikely you will find any ready-made work. You will certainly need nios module to interface with a window module. You will need to write both modules yourself I am afraid. The nios module can interface to fpga through a register stack that you must build in firmware.
I am not sure, however, why use fpga in the first place. You can do it in software all. FPGA only gives the advantage of speedier data-intensive processing at the expense of low complexity algorithms.