I created a GUI, and there is a part that user selects 2 pixel and then the program take some time to proceed a function with the coordinates of those 2 points. I want to know how should I manage to have a message(while the program is processing) that tells the user that the program is doing some calculation and that he should wait and it disappears when the program is done with the process?
You can create an Editbox and set it to invisible in the opening function
When the user select two pixel, set the Editbox1 to visible
At the end of the calculation add