void
glInsertEventMarkerExt(
 - int length, 
- String marker
) 
    
  GLAPI void APIENTRY glInsertEventMarkerEXT (GLsizei length, const GLchar *marker)
 
    
  Implementation
  void glInsertEventMarkerExt(int length, String marker) {
  final glInsertEventMarkerExtAsFunction = _glInsertEventMarkerExt
      .cast<
        NativeFunction<Void Function(Uint32 length, Pointer<Utf8> marker)>
      >()
      .asFunction<void Function(int length, Pointer<Utf8> marker)>();
  final markerPointer = marker.toNativeUtf8();
  final result = glInsertEventMarkerExtAsFunction(length, markerPointer);
  calloc.free(markerPointer);
  return result;
}