Author: Carl Sassenrath
Here's how to create and control a simple progress bar in a window. Below the bar, four buttons are provided: empty, half, full, and move (from empty to full).
Each button changes the /DATA field (ranging between 0 and 1) then does a SHOW to update the progress bar.
The background and foreground colors can be set, as shown here with the COAL and GREEN colors.
The progress bar is horizontal, but if you make it taller than it is wide, it will become vertical. For example, try this:
And of course you can make progress bars any size, fat or skinny. It's up to you.