# setDocumentName method

void setDocumentName(

1. String? documentName

)

Sets the document type to authenticate.

param documentName Document type to authenticate. throws DocumentException An error has occurred during Document Library execution.

## Implementation

    void setDocumentName(String? documentName) {
      Pointer<Char>? pDocumentName = documentName?.toNativeUtf8().cast<Char>();
      try {
        var err = documentSDK.id3DocumentAuthenticator_SetDocumentName(_pHandle.value, pDocumentName ?? nullptr);
        if (err != DocumentError.success.value) {
          throw DocumentException(err);
        }
      } finally {
        if (pDocumentName != null) {
          calloc.free(pDocumentName);
        }
      }
    }