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sbool trayIcon_imageAutoSize = true;

static TrayIcon installTrayIcon(S imageID, S tooltip) {
  ret installTrayIcon(imageID, tooltip, null);
}

// menuItems can also just be a PopupMenu
// also, first of menuItems can be a Runnable for left-click on icon
static TrayIcon installTrayIcon(S imageID, S tooltip, O... menuItems) ctex {
  // convenience parameter swap :-)

  if (!isSnippetID(imageID) && isSnippetID(tooltip)) {
    S s = tooltip;
    tooltip = imageID;
    imageID = s;
  }
  
  ifdef installTrayIcon_useImageIcon
  Image image = imageIcon(imageID).getImage();
  endifdef
  ifndef installTrayIcon_useImageIcon
  Image image = loadImage2(imageID);
  endifndef
  ret installTrayIcon(image, tooltip, menuItems);
}

static TrayIcon installTrayIcon(final Image image, fS tooltip, fO... _menuItems) null on exception {
  ret swing(func -> TrayIcon {
    Runnable leftClick = null;
    O[] menuItems = params_unpackList(_menuItems);
    if (l(menuItems) > 0 && menuItems[0] instanceof Runnable) {
      leftClick = (Runnable) menuItems[0];
      menuItems = dropFirst(menuItems);
    }
  
    PopupMenu menu = makePopupMenu(menuItems);
    TrayIcon trayIcon = new TrayIcon(image, tooltip, menu);
    trayIcon.setImageAutoSize(trayIcon_imageAutoSize);
    
    if (leftClick != null) {
      final Runnable _leftClick = leftClick;
      onLeftClick(trayIcon, _leftClick);
    }
    
    SystemTray.getSystemTray().add(trayIcon);
    ret trayIcon;
  });
}