Name
keysym->keycode -- Returns a list of X/11 keycodes that generate the keysym, KEYSYM-NAME.
Synopsis
(keysym->keycode keysym-name)
Description
Returns a list of X/11 keycodes that generate the keysym, keysym-name.
keysym-name should be a string. E.g., "Control_L". Return #f if keysym-name
is not a valid keysym.