Displaying pictures

I would like to make an app for guitar studies. I will use if/else to ask questions but I would llike to use pictures. Is there a way like display dialog but show pictures? Thanks in advanced!

You could of course tell a scriptable application to open the image, but that would rely on every user having that app installed. Otherwise, the only way to effectively show worthwhile pictures without scripting external apps is to write a custom app in xcode.


Two things:
Number 1: How would I have a diifrent app display it? Wouldn’t I need the picture on the computer? How would I say where it is?

Number 2: What do you mean create a custom app in xcode? What would I do? What code would I need?

Thanks for your help!