<GrabbaMRTD_Protocol> Protocol Reference

Description

Interface for receiving MRTD read events.

Objects which implement this protocol may receive callbacks when these events occur, via delegation from a GrabbaMRTD_Listener object.

Note that this protocol need not be directly implemented; it may be simpler to subclass GrabbaMRTD_Listener and thereby receive the events directly.

Thread safety: This interface is intended to be thread-safe; any classes deriving from it should ensure that the relevant methods are callable from any thread.

See also

GrabbaMRTD_API for related API functions

Instance Methods
(void)	- dataEvent:
	Callback which is invoked when an asynchronous MRTD read completes successfully. More...
(void)	- errorEvent:
	Callback which is invoked when an asynchronous MRTD read fails. More...
(void)	- progressEvent:
	Callback which is invoked when asynchronous MRTD read progress advances. More...

Method Documentation

dataEvent:()

- (void) dataEvent:

(GrabbaBER_TLV *_Nonnull)

data

Callback which is invoked when an asynchronous MRTD read completes successfully.

Note

Implementations of this method are required to be thread-safe; no guarantees are made about which thread(s) they will be called from.

Parameters

data	Contents of the data read from the MRTD, in BER-TLV format

errorEvent:()

- (void) errorEvent:

(GrabbaErrorCode *_Nonnull)

error

Callback which is invoked when an asynchronous MRTD read fails.

Note

Implementations of this method are required to be thread-safe; no guarantees are made about which thread(s) they will be called from.

Parameters

error

Reason why the read operation failed

progressEvent:()

- (void) progressEvent:

(uint8_t)

percentage

Callback which is invoked when asynchronous MRTD read progress advances.

Note

Implementations of this method are required to be thread-safe; no guarantees are made about which thread(s) they will be called from.

Parameters

percentage

Current read progress percentage