switch(draw_state >> 3)

can anyone advise me on this expression in this switch statement , draw_state >> 3 ?? anything to do with bitshift ?? google on this but still can't find info on it? thanks Attached the sketch below. This switch statement is at the last part of the sketch.

graphicTest.ino (33.1 KB)

dk67:
can anyone advise me on this expression in this switch statement , draw_state >> 3 ?? anything to do with bitshift ?

Yes.

Ok .Thanks for the link.