Method isActive

ij/src/main/java/ij/macro/Functions.java:2935–2942

()

	}

	double isActive() {
		int id = (int)getArg();
		ImagePlus imp = WindowManager.getCurrentImage();
		if (imp==null || imp.getID()!=id)
			return 0.0; //false
		else
			return 1.0; //true
	}

	double isOpen() {
		interp.getLeftParen();