Creating a new API for an FPGA design with Data Generator IP

Thank you very much for your reply. Actually my problem is bit different I assume. I want to use the Data Generator IP to generate data and send that data to the DDR memory. Then do a PCIe DMA transfer of the data to a host windows computer (Windows OS 10). For sending data from Data Generator IP to the DDR4 and doing DMA transfer from the DDR4 to the memory of host computer, I am planning to use the PCIe DMA transfer example (given in chapter 7 of attached document). But to generate data in the IP, I assume we needed an API in the host computer? (the host computer is connected to FPGA through PCIe as well as USB).

https://www.intel.com/content/www/us/en/docs/programmable/683609/21-3/data-pattern-generator-ip-api.html

Talks about the API’s for this. But I would like to know how to get a “.DLL” file and driver file for this.

Also can I use the API for PCIe DMA transfer and API for Data Generator IP simultaneously from the host computer?