# Finger Print

Component to check for a FingerScanner and read fingerprints from the scanner.

### Events

#### On Authentication Error

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiEvXj_NirUPBYGU%2FOnAuthenticationError.png?generation=1522222953871717\&alt=media)

Triggers when there is a Authentication Error.

#### On Authentication Help

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiF7Uo4cyrHnlhAB%2FOnAuthenticationHelp.png?generation=1522222952322248\&alt=media)

Triggers when there is a Authentication Help.

#### On Authentication Failed

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiFIjGamO7ObW7qU%2FOnAuthenticationFailed.png?generation=1522222952266325\&alt=media)

Triggers when the Authentication Failed.

#### On Authentication Succeeded

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiFQNYG_UtOH0pz_%2FOnAuthenticationSucceeded.png?generation=1522222953495523\&alt=media)

Trigger when the Authentication Succeeded.

## Methods

#### Has Fingerprint Scanner

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiFXuWrIIB6x2xOo%2FHasFingerprintScanner.png?generation=1522222956001712\&alt=media)

True if hardware is present and functional, false otherwise.

#### Has Fingers Added

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiFcptp0A4-2nJGq%2FHasFingersAdded.png?generation=1522222953534003\&alt=media)

True if at least one fingerprint is enrolled, false otherwise.

#### Authenticate

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiFg103RSROq31Qn%2FAuthenticate.png?generation=1522222956086134\&alt=media)

Authenticate the user with a Fingerprint scanner.

#### Cancel Scan

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiFmHNXbnQzPp17D%2FCancelScan.png?generation=1522222955487092\&alt=media)

Cancel the current Fingerprint Scan.

### Properties

#### Light Theme

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiGCCsUA5hgzxYDI%2FLightTheme.png?generation=1522222953506949\&alt=media)

Sets the current theme.

#### Use Dialog

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiGJffBALRzRNqn3%2FUseDialog.png?generation=1522222955504156\&alt=media)

Whether to use a dialog.

#### Dialog Title

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiGWQzT7UD2YbubK%2FDialogTitle.png?generation=1522222955487253\&alt=media)

Sets the dialog title/

#### Dialog Help Text

![](https://2210308116-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L8fYW7L3BwD6b6qtcZU%2F-L8fYWYUH7V44NtENovf%2F-L8fYiGczlB_6w77lNHb%2FDialogHelpText.png?generation=1522222952255477\&alt=media)

Sets the dialog help text.
