# getDocumentWidthRatio method

double getDocumentWidthRatio()

Gets the ratio of the estimated width of the searched document in the image. Hint: Default value is 1.

return Ratio of the estimated width of the searched document in the image. throws DocumentException An error has occurred during Document Library execution.

## Implementation

    double getDocumentWidthRatio() {
      Pointer<Float> pDocumentWidthRatio = calloc();
      try {
        var err = documentSDK.id3DocumentDetector_GetDocumentWidthRatio(_pHandle.value, pDocumentWidthRatio);
        if (err != DocumentError.success.value) {
          throw DocumentException(err);
        }
        final vDocumentWidthRatio = pDocumentWidthRatio.value;
        return vDocumentWidthRatio;
      } finally {
        calloc.free(pDocumentWidthRatio);
      }
    }