Windows drivers for PCI Express IP Cyclone 10 GX

Hi, my friends! I was try find answer on my question, but don't find.

I see on page Intel® FPGA IP for PCI Express (https://www.intel.com/content/www/us/en/programmable/products/intellectual-property/ip/interface-protocols/m-pci-express-protocol.html) next words - "Software drivers provided Y" and I see in examples driver "altera_pcie_win_driver.sys". And I have quastion - "How I can connect to FPGA (Altera PCI API Device) and read/write registers from VS C++" Test application "Alt_Test" in this examples use AlteraPCILibraryDll. Where can I fing documentation on driver from Intel (Altera) how use Readfile/Writefile or IOCTL? Or where can I fing documentation on AlteraPCILibraryDll? May be someone have examples? Or source code of "Alt_Test"? Help me please.