Motorola HANDSET C381P - Manual (Page 70)

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User Display Interface
70
Volume Key
Volume keys will not be supported in the first release of J2ME, Java 1.0. In following
releases, when the Volume key (s) is pressed and held down, it should always control the
speaker/ accessory volume regardless of application.
Game Key Mapping
Games require the use of UP/DOWN/LEFT/RIGHT and FIRE as a basic set of keys in
order to play. For handsets that have a four direction navigational device (joystick),
UP/DOWN/LEFT/ RIGHT should be mapped to that. Otherwise, the keypad should return
game action by mapping the 2 key to UP command, 8 key to DOWN command, 4 key to
LEFT command, and 6 key to RIGHT command. In addition, the FIRE key should be
mapped to the SELECT key if present otherwise to the right soft key and the 5 key.
Additional game action keys exist, these are the GAME A, GAME B, GAME C, and GAME
D keys. They perform different game actions depending on the game being played.
GAME A should be mapped to the 1 key. GAME B should be mapped to the 3 key. GAME
C should be mapped to the 7 key. GAME D should be mapped to the 9 key. For hardware
implementations that support multiple key presses, such as Talon, the following keys must
be supported when pressed simultaneously: Four direction navigational device (i.e.
joystick), 1, 3, 5, 7, & 9 keys.