Number codes for keyboard keys

Can someone direct me to where I find the KeyChar number codes? For example the ESCAPE key is chr(27). I like to know the numbers for the other keys on the keyboard but I cannot find them anywhere.

Do you mean ASCII codes? One of many sources:

Actually this is a bit more complicated. For a key a scan code is generated. The keyboard driver/handler is usually replacing/enhancing this with a character code, depending on layout and other pressed keys, so Shift-e gives ‘E’, e alone ‘e’ and AltGr-e may give ‘€’ on my keyboard., but even this could be changed for old fonts like WinDings.
ScanCodes you may find here:

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LibreOffice will use Unicode internally (but that’s no longer keys, but the characters in the document.)

Hallo
Youre refer to the key-codes triggered ON YOUR OS from keyboard?
( on most Linux-Distributions I would start with »xev« )

Perhaps you are looking for this table?