Nope. They're Windows ‘virtual key codes’, which are entirely unrelated to Windows ‘scan codes’, which are also not hardware codes (but are distantly descended

Nope. They're Windows ‘virtual key codes’, which are entirely unrelated to Windows ‘scan codes’, which are also not hardware codes (but are distantly descended from the original IBM PC). For instance, consider ‘/’ (beside right shift). The normal hardware code (USB HID) is page 7 usage 0x38 (sometimes written 0x070038; in theory HID usage codes can exceed 16 bits, but in practice they don't). The PS/2 hardware code (for old keyboards) is 0x4A. The Windows ‘scan code’ is 0x35. And finally, the browser legacy ‘keyCode’ which you can see at https://w3c.github.io/uievents/tools/key-event-viewer.html https://w3c.github.io/uievents/tools/key-event-viewer.html is 191 (0xBF), which is the Windows virtual key ‘VK_OEM_2’.