version
graphics_toolkit('fltk');
figure(1);
plot(1:6,1:6);
h = text(2,3,'foo_bar');	# Displays as "foo_bar"
get(h, 'interpreter');

graphics_toolkit('gnuplot');
figure(2);
plot(1:6,1:6);
h = text(2,3,'foo_bar');	# Displays as "foo\_bar"
get(h, 'interpreter');

