MTSCRA Delegate Methods 11-22

onDeviceResponse

This message occurs when a non EMV command response is returned from the device.

Parameter	Description
data	Byte array containing the data received from the device. For details, see the Programmer's Manual (COMMANDS) for the specific device with which you are communicating.

onDeviceError

This message occurs when an error occurs.

Parameter	Description
error	Error object.

onTransactionStatus (EMV Device Only)

The SDK sends this notification when the transaction status has changed.

Parameter	Description
data	Byte array containing the transaction status received from the device. For details about the Transaction Status, see the Programmer's Manual (COMMANDS) for the specific device with which you are communicating.

onDisplayMessageRequest (EMV Device Only)

Device request for displaying information to user.

Parameter	Description
data	Byte array containing the display message received from the device. For details about the Display Message Request, see the Programmer's Manual (COMMANDS) for the specific device with which you are communicating.

onUserSelectionRequest (EMV Device Only)

Device request for application to display a User Selection Menu.

Parameter	Description
data	Byte array containing the display selection from the device. For details about the Display Message Request, see the Programmer's Manual (COMMANDS) for the specific device with which you are communicating.

onARQCReceived (EMV Device Only)

This notification is sent from the device for ARQC data.

Offset	Field Name	Value
0	Message Length	Two byte binary, most significant byte first. This gives the total length of the ARQC message that follows.
2	ARQC Message	For details about the ARQC format, see the Programmer's Manual (COMMANDS) for the specific device with which you are communicating.

onTransactionResult (EMV Device Only)

This message occurs when the transaction result is received from the EMV device.

Parameter	Description
data	Byte array containing the transaction result from the EMV device. For details about the Display Message Request, see the Programmer's Manual (COMMANDS) for the specific device you are communicating with.

onEMVCommandResult (EMV Device Only)

This message occurs when an EMV command result is received from the EMV device.

Parameter	Description
data	Byte array containing the command result from the EMV device. For details about the Display Message Request, see the Programmer's Manual (COMMANDS) for the specific device you are communicating with.

onDeviceExtendedResponseReceived

This message occurs when and extended response is received from the device.

Parameter	Description
data	Hexadecimal string containing the extended response data received from the device. The first two bytes represent the result codes for the extended command. The next two bytes (most significant byte first) indicate the total length for the following data in bytes.

deviceNotPaired

This message occurs when a command is sent to an unpaired Bluetooth LE device.

didGetRSSI

This message occurs when and extended response is received from the device.

Parameter	Description
RSSI	Integer value for the Received Signal Strength Indicator.
error	NSError object

debugInfoCallback

This call back will be raised if host software subscribes to it.