USB HID Test 4176 In the book "PIC microcontrollers for beginners" published by Elektor is to present how to dialogue through the USB port in HID mode. The source of the Windows executable is written under Delphi 7. Delphi 7 is no longer installable on new versions of Delphi. The project is to rewrite the project under Lazarus (freeware) to make the project usable by everyone.

 https://www.elektormagazine.com/labs/usb-hid-test

https://www.sonelec-musique.com/logiciels_freewares_usbhidtest.html

 https://github.com/LongDirtyAnimAlf/FPC-USB-HID

 https://forum.lazarus.freepascal.org/index.php/topic,49233.0.html

 https://github.com/LongDirtyAnimAlf/Delphi-Android-USB-HID/blob/master/android.hardware.usb.HID.pas

 https://github.com/project-jedi/jvcl/blob/master/jvcl/run/JvHidControllerClass.pas

https://stackoverflow.com/questions/6271421/using-hidcontroller-on-delphi-2010 

https://torry.net/pages.php?id=208

https://blogs.embarcadero.com/human-interface-devices-communicator-for-delphi-c-builder-on-windows/

https://winsoft.sk/nathid.htm

https://docs.microsoft.com/en-us/windows-hardware/drivers/hid/