How to use the PCIE interrupt on DE4 board?

I am using terasic DE4 board, I have installed the PCIE driver in the CD-ROM on my PC(winXP OS), and the demo PCIe_Fundamental works.

Now I want to use the interrupt of the PCIE. I have noticed that the PCIE driver has the function to set the interruption function. But I am confused that how to program in Quartus II v9.1 (by verilog) to produce interrupt and respond to the ack signal. I have searched for the answers but failed.

I wanted to know if someone had an idea for my question?

Thanks & Regards