Function InitFeatureDisplayWindowIfReqd

deps/tesseract/classify/intproto.cpp:1911–1916

* Initializes the feature display window if it is not already * initialized. */

 * initialized.
 */
void InitFeatureDisplayWindowIfReqd() {
  if (FeatureDisplayWindow == NULL) {
    FeatureDisplayWindow = CreateFeatureSpaceWindow("FeatureDisplayWindow",
                                                    50, 700);
  }
}

/// Creates a window of the appropriate size for displaying elements
/// in feature space.