FingerVein Online
Installation and Programming Manual
Page
49 of 69
characters. It may also include an indicative prefix of the reader to have read the card
(see
If the reading was erroneous, the frame is returned with 0 arguments. This will enable the
Host to act on the LEDs or the Beeper to inform users of the success of failure of the
operation.
If the multiread filter is enabled, a code based on special characters (e.g.
‘***********’
for TTL_0) can be obtained to indicate that the card has been
removed from the reader.
9.5.19. Key Pressing
Function: Returns key code pressed for Online management according to the following
table:
Event
OP
0x80
NA
0x0001
ARG
Key code:
Table 12: Key codes
Key pressed
Code assigned
Numerical ( 0 to 9 )
0x30 to 0x39 (‘0’ to ‘9’)
Green key (“Enter”)
0x41 = ‘A’
Red key (“Exit”)
0x42 = ‘B’
F1
0x43 = ‘C’
F2
0x44 = ‘D’
Enter
0x45 = ‘E’
CLR
0x46 = ‘F’
Optical barrier
CFG_OPT_ KeyCode
(‘A’ by default)