User Manual

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4-2-3 Programmable button feature
Five buttons designed on front bottom of B21 device. Keypad driver will report
the Windows virtual key code what described in a registry key to system when
button to be pressed. System Integrator can modify the registry key value of
each button separately. The modification will work on next button pressed
instantly.
- One key with combination function: combined Power button and “Enter”
button functions into one button.
This button is a fix function button, no available API for function
modification.
- 4 programmable buttons: defined to be 4 way navigation keys by system
default mode. All buttons can be re-programmed to one of the number of
Windows keyboard virtual key code to redefine the button function by
registry modification.
Registry key definition
Registry Key:
[HKEY_LOCAL_MACHINE\Drivers\BuildIn\KEYPAD]
Value Name DWORD (HEX)
KeyPadSet0 27 (Right) 28(Down) 00 00
KeyPadSet1 25 (Left) 26 (Up) 00 00
Windows virtual key code
Virtual key codes
Symbolic
constant
Hexadecimal value Mouse or keyboard equivalent
VK_LBUTTON 01H Left mouse button
VK_RBUTTON 02H Right mouse button
VK_CANCEL 03H Control-break processing
VK_MBUTTON 04H
Middle mouse button on a three-button
mouse
05H-07H Undefined