Hotkeys - use of scan codes causes numpad to overlap with arrows/home/end

[DavidCEllis]

By using scan codes instead of names hotkeys now overlap so for example 'numpad 1' and 'END' are considered equivalent so assigning either as a hotkey makes both work.

This was intended to avoid numpad keys from overlapping with regular numbers on top of the keyboard (this was an issue for me in one of the games I used when testing this).

I think fixing this will involve either rewriting more parts of the keyboard module or just entirely writing a hotkey system from scratch (more tempting as I keep running into things like this).

[DavidCEllis]

On further testing this isn't something introduced by switching to scan codes and creating a modified read_hotkey function.

The version provided by the keyboard module gives the string representation of the key.

For example:
keyboard.add_hotkey('1', print, args=['pressed 1'])
will trigger on numpad 1, 1 in the number row and on pressing the end key.

By using the scan code at least we can separate the numpad from the number row.

The listening method read_hotkey can detect if a key is a numpad key but this information is thrown out and there is currently no way to use it in add_hotkey (as far as I can tell). If that can be added then it will be possible to split the numpad out too.