Get checkbox of RadioButtonGroup

getRadioCheckbox.java

/**
 * Retrieves the Checkbox of a RadioButtonGroup() in an ImageJ1
 * GenericDialog associated with the specified label.
 */
Checkbox getRadioCheckbox(ij.gui.GenericDialog gd, String label) {
	Component[] gdComponents = gd.getComponents();
	for (Component c1 : gdComponents) {
		if (c1 instanceof Panel) {
			Component[] c1Components = ((Panel) c1).getComponents();
			for (Component c2 : c1Components) {
				if (c2 instanceof Checkbox) {
					Checkbox cb = (Checkbox)c2;
					if (cb.getLabel().equals(label))
						return cb;
				}
			}
		}
	}
	return null;
}