Instructions

U.are.U SDK - Developer Guide 38
The JavaScript API
DeviceConnected
The DeviceConnected event is fired when a fingerprint reader is connected to the client computer.
DeviceDisconnected
The DeviceDisconnected event is fired when a fingerprint reader is disconnected from the client computer.
SamplesAcquired
The SamplesAcquired event is fired when fingerprint data is captured.
QualityReported
The QualityReported event is fired when fingerprint quality advice is reported.
ErrorOccured
The ErrorOccured event is fired when an error occurred during fingerprint capture.
CommunicationFailed
The CommunicationFailed event is fired when an error occurred during communication with the U.are.U SDK.
Properties - None.
Remarks
The CommunicationFailed event usually indicates that the required U.are.U SDK components are not running on the
client computer. Typically, the end-user of your application should be given instructions on installing the required
software.
Property Description
deviceUid A string containing the unique identifier of the fingerprint reader.
Property Description
deviceUid A string containing the unique identifier of the fingerprint reader.
Property Description
deviceUid A string containing the unique identifier of the fingerprint reader.
SampleFormat One of the SampleFormat enumeration values that specifies the format of the returned
fingerprint data.
samples A string containing a serialized JSON array of fingerprint samples. This string can be
base64url encoded and passed directly to the Altus Web server components (aka Altus
Confirm) authentication service as the fingerprint credential.
Property Description
deviceUid A string containing the unique identifier of the fingerprint reader.
quality One of the QualityCode enumeration values that specifies advice regarding the quality of
the scanned fingerprint image.
Property Description
deviceUid A string containing the unique identifier of the fingerprint reader.
error A number containing the HRESULT error code.