# startDocumentScanner static method

1. @Deprecated('Use ScanbotSdkUiV2.startDocumentScanner instead.')

Future<DocumentScanningResult> startDocumentScanner(

1. DocumentScannerScreenConfiguration config

)

Starts the Ready-to-Use Document Scanner UI as full-screen modal UI dialog. The Document Scanner provides guided, automatic document scanning.

## Implementation

    @Deprecated('Use ScanbotSdkUiV2.startDocumentScanner instead.')
    static Future<DocumentScanningResult> startDocumentScanner(
        DocumentScannerScreenConfiguration config) async {
      try {
        var updatedParameters = config.toJson();
        const defaultJsonName = "DocumentScreen";
        var configuration = await SharedCalls.applyParametersOnDefaultJson(
            defaultJsonName, updatedParameters);
        var docSize = configuration['documentImageSizeLimit'];
        if (docSize['width'] == 0 || docSize['height'] == 0) {
          configuration.remove('documentImageSizeLimit');
        }

        var result =
            await _channel.invokeMethod('startDocumentScanner', configuration);
        if (SharedCalls.wasCanceled(result)) {
          return DocumentScanningResult.canceled();
        }
        return DocumentScanningResult.fromJson(jsonDecode(result));
      } on PlatformException catch (e) {
        Logger.root.severe(e);
        return DocumentScanningResult.error(
            e.message ?? 'Unknown platform error');
      } on Exception catch (e) {
        return DocumentScanningResult.error(e.toString());
      }
    }