KP0                 keypad 0
K_KP1                 keypad 1
K_KP2                 keypad 2
K_KP3                 keypad 3
K_KP4                 keypad 4
K_KP5                 keypad 5
K_KP6                 keypad 6
K_KP7                 keypad 7
K_KP8                 keypad 8
K_KP9                 keypad 9
K_KP_PERIOD   .       keypad period
K_KP_DIVIDE   /       keypad divide
K_KP_MULTIPLY *       keypad multiply
K_KP_MINUS    -       keypad minus
K_KP_PLUS     +       keypad plus
K_KP_ENTER    \r      key