packPoint method
Implementation
String packPoint(String pointX, String pointY) {
//if (lib == null) return "ERROR: The library is not initialized";
final ptrX = pointX.toNativeUtf8();
final ptrY = pointY.toNativeUtf8();
final resultPtr = _packPoint(ptrX, ptrY);
final result = resultPtr.toDartString();
//debugPrint("- Response string: $result");
// Free the string pointer, as we already have
// an owned String to return
//print("- Freeing the native char*");
cstringFree(resultPtr);
return result;
}