Instructions

U.are.U SDK - Developer Guide 66
JavaPOS
Getting Device-Specific Information with DirectIOEvent
The DirectIOEvent event is fired by a Service Object to deliver vendor-specific events to the application. The U.are.U
JavaPOS API uses DirectIOEvent events to notify the application about device connection and disconnection and
intermediate events such as finger touch or removal.
Syntax
upos::events::DirectIOEvent
EventNumber: int32 { read-only }
Data: int32 { read-write }
Obj: object { read-write }
Properties
This event contains the following attributes:
EventNumber Return Values
These constants are defined in the com.Crossmatch.javapos.services.biometrics.dpfpconstants class.
Property Type Description
EventNumber int Constants whose specific values are assigned by the Service Object
Data int Not used
Obj object Name of the fingerprint reader
Event Number Description
DP_EVENT_DISCONNECT The fingerprint reader was disconnected.
DP_EVENT_RECONNECT The fingerprint reader was reconnected.
DP_EVENT_FINGER_TOUCHED The fingerprint reader was touched.
DP_EVENT_FINGER_GONE The finger was removed from the fingerprint reader.
DP_EVENT_COMPLETED Capture completed.
DP_EVENT_IMAGE_READY Raw image (from a capture) is available.
DP_EVENT_SAMPLE_QUALITY Information about quality of the sample is available.