`keyCode` are just raw Windows codes, which are a mess if you ever stray from Windows or US English. `VK_A` does not necessarily correspond to an ‘a’ and does n

`keyCode` are just raw Windows codes, which are a mess if you ever stray from Windows or US English. `VK_A` does not necessarily correspond to an ‘a’ and does not necessarily correspond to the same position as A on a US keyboard — in general there is nothing you can reliably say about it. `code` is useful for key positions, e.g. for WASD movement in a game. `key` is useful as the interpretation of a key, but primarily for non-text keys, since IMEs and virtual keyboards mean that text does not necessarily correspond directly to keys.