APG8201-B2
– Reference Manual
Version 1.00
www.acs.com.hk
Page 43 of 48
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.hk
9.3.10.
FEATURE_GET_KEY
hCard
Reference value returned from SCardConnect.
dwControlCode
Return from CM_IOCTL_GET_FEATURE_REQUEST.
lpInBuffer
NULL
LpOutBuffer
Read Key Data Options Data Structure:
Offset
Field
Size
Value
Description
15
bTimeOut
1
16
wPINMaxExtraDigit
2
YYXX
h
XX: Minimum PIN size in digit
YY: Maximum PIN size in digit
Valid XX value: 0h
– 20h
Valid YY value: 0h
– 20h
18
bKeyReturnCondition
1
05h
The value is a bit wise OR operation.
01h: Max size reached.
04h: Timeout occurred.
19
bEchoLCDStartPosition
1
Valid value: 0h
– 1Fh
20
bEchoLCDMode
1
00h: Echo key press data ASCII
representation to LCD.
01h: Display all key presses as asterisks
“*” on LCD.
02h: No echo
nOutBufferSize
4
lpBytesReturned
Pointer to a
DWORD
that receives the size, in bytes, of the data stored into
the buffer pointed to by
lpOutBuffer