static bool shootScreen_useScrot; // Use program "scrot" to make screenshots (on Linux)

static BufferedImage shootScreen2() {
  ret shootScreen2(screenRectangle());
}

static BufferedImage shootScreen2(Rectangle area) ctex {
  if (shootScreen_useScrot && !isOnPATH("scrot")) shootScreen2_fallback();
  if (shootScreen_useScrot) {
    File f = prepareProgramFile(randomID(12) + ".png");
    try {
      S cmd = "scrot " + bashQuote(f);
      S out = backtick(cmd);
      if (f.exists())
        ret loadPNG(f);
      shootScreen2_fallback();
    } catch e {
      print(e);
      shootScreen2_fallback();
    } finally {
      f.delete();
    }
  }
  return new Robot().createScreenCapture(area);
}

static BufferedImage shootScreen2(Rect area) {
  ret shootScreen2(area.getRectangle());
}

static BufferedImage shootScreen2(int x, int y, int w, int h) {
  ret shootScreen2(new Rectangle(x, y, w, h));
}

// internal
static void shootScreen2_fallback() {
  if (shootScreen_useScrot) {
    print("Scrot failed. Reverting to internal screenshots.");
    shootScreen_useScrot = false;
  }
}