MagTek 99875125 - Manual (Page 32)

MagTek Device Drivers for Windows
Read
Argument
Description
chk_or_card Read magnetic stripe card or check data. When a card or check is swiped
through the device, the driver sends the respective response.
key_press Display a message ( msg4 ) on the LCD screen, if available, and wait for a
key on the keypad to be pressed. The device will wait for entry_tout
seconds for the key press (by default 0 for no timeout). The response to
this command is:
/read K XXXSS K
XXX is the number of keys collected. Always 001 on successful read,
000 if failed.
SS is a two-digit status code: 00 – successful read, 81 – timeout, etc.
K is the ASCII representation of the pressed key (if SS is 00).
key_string Display a message ( msg4 ) on the LCD screen, if available, and collect a
string of key presses (digits) from the device. The following properties
affect this command:
•
entry_tout – number of seconds to wait for input (by default 0 for
no timeout)
•
entry_echo – how to display the characters entered from the
keypad on the LCD screen: “0” (zero) to display, “+” to echo, “-”
- (minus) to suppress display, “ $ ” to display as amount. Empty by
Default (must be set prior to use).
•
entry_len – maximum number of characters to be collected.
An empty value for this property is interpreted as a length of 1 by the
device (default).
The response to this command is in the following format:
/read K XXXSS data
XXX is the data length in characters
SS is a two digit status code:
00 – successful read
30 – entry – echo not set
81 – timeout
83 – input aborted, etc.
data is the string collected from the device.
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