Posted by Xerxes Rånby on Jan 17, 2013; 1:45pm
URL: https://forum.jogamp.org/JOGL-2-0-OpenGL-OpenGL-ES-backend-for-LibGDX-tp4027689p4027895.html

Suggestion:

keySym == a unique index for a key or button.
I suggest that we use the HID Hut1_12v2.pdf namespace for keySym
These maps nicely with input device keys.

keyCode == similar to keySym but re-arranged according to system keymap in use. (unclear how this conversion is done)

keyChar == printable character on screen.
I suggest that we use the Unicode name-space for keyChar.
These maps nicely with fonts.

My head already spins thinking about these codes  so.. if someone happens to be an expert on computer input system code namespaces please chip in.