User's Manual

Programming—Chapter 7
283700 Series Color Mobile Computer User’s Manual
Change Notification
Just changing the registry keys will not immediately change the key
mappings. To notify the keypad driver that the registry has been updated,
signal the “ITC_KEYBOARD_CHANGE” named event using the
CreateEvent() API.
Advanced Keypad Remapping
It is also possible to map multiple key presses to one button and to map
named system events to a button. The multiple key press option could be
useful to cut down on the number of keys needed to press in a given situa-
tion or to remap which key behaves like the action key. Mapping events to
a button could be useful to change which buttons will fire the scanner,
control volume, a nd allow for suspending and resuming the device. If you
need help performing one of these advanced topics please contact Intermec
Technical Support.
Scan Codes
At the lowest driver level, the 740 Keypad identifies keys as scan codes.
These scan codes are sent via the keypad microcontroller, and cannot be
changed without modifying the keypad firmware.
Key/Meaning Scancode
Reserved 0x00
I/O Button 0x01
Scanner Trigger 0x02
Scanner Left 0x03
Scanner Right 0x04
.0x05
40x06
None 0x07
Left Arrow 0x08
None 0x09
Backspace 0x0A
Gold Key 0x0B
None 0x0C
ESC 0x0D
Down Arrow 0x0E
10x0F
70x10
Alpha Key 0x11
None 0x12
Up Arrow 0x13
Right Arrow 0x14
20x15
80x16
00x17
50x18
None 0x19