# toFile method

void toFile(

1. String? path

)

Saves the face object to a file.

param path Path to the file to export the face object to. throws FaceException An error has occurred during Face Library execution.

## Implementation

    void toFile(String? path) {
      Pointer<Char>? pPath = path?.toNativeUtf8().cast<Char>();
      try {
        var err = faceSDK.id3DetectedFace_ToFile(_pHandle.value, pPath ?? nullptr);
        if (err != FaceError.success.value) {
          throw FaceException(err);
        }
      } finally {
        if (pPath != null) {
          calloc.free(pPath);
        }
      }
    }