I have a map on my GUI for which I need to add a legend. So I have added a pushbutton for legend as I donot want to mess up the map with lots of information. what I want the 'legend pushbutton' to do when clicked, is to open the image file that contains my legend. I have already saved the image file, I just need the pushbutton feature to open that file, not in the GUI but the file itself. Any suggestion when be highly appreciated. Thank you.