Onuserselectionrequest (Emv Device Only); Onarqcreceived (Emv Device Only) - Magtek aDynamo Programmer's Reference Manual

5 - MTSCRA Callback Messages
Parameter
obj
5.7

OnUserSelectionRequest (EMV Device Only)

This message occurs when the EMV device has user selection message to present to the user.
Parameter
obj
Offset Field Name
0 Selection Type
1 Timeout
2 Menu Items
5.8

OnARQCReceived (EMV Device Only)

This message occurs when ARQC is received from the EMV device.
Parameter
Obj
aDynamo, uDynamo, Dynamag, DynaMAX, eDynamo, BulleT| Secure Card Reader Authenticator | Programmer's Reference (Android)
Byte array containing the display message. If the length is zero, the request to
clear the display.
Byte array containing the data received from the device. See table below for
descriptions of the data.
This field specifies what kind of selection request this is:

0x00 – Application Selection

0x01 – Language Selection
Specifies the maximum time, in seconds, allowed to complete the selection
process. If this time is exceeded, the host should send the User Selection
Result command with transaction will be aborted and an appropriate
Transaction Status will be available. Value 0 is not allowed.
This field is variable length and is a collection of "C" style zero terminated
strings (maximum 17 strings). The maximum length of each string is 20
characters, not including a Line Feed (0x0A) character that may be in the
string. The last string may not have the Line Feed character.
The first string is a title and should not be considered for selection.
It is expected that the receiver of the notification will display the menu items
and return (in the User Selection Result request) the number of the item the
user selects. The minimum value of the Selection Result should be 1 (the first
item, #0, was a title line only). The maximum value of the Selection Result is
based on the number of items displayed.
Byte array containing the data received from the device. See table below for
descriptions of the data.
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Description
Description
Value
Description