OSL ‐ Example Application - Mistium/Origin-OS GitHub Wiki

window "show"
// this command makes the background of the window visible to the user and makes it draggable

variable = 0
// sets variable to 0

mainloop:
// anything after "mainloop" will be run every frame
// anything before "mainloop" will be run only once

variable = variable + 1
// sets variable to itself + 1

goto 0 0
// sets the location for the next ui command to be drawn

colour #fff ⚪ 
// sets the colour to white

text variable 10
// this renders text that says the value of "variable" at 0,0 that has the colour white and a size of 10

import "win-buttons"

Starting a line with "//" means that the OSL interpreter will not run that line and you can write whatever you want there

import runs another osl file, in this case, running "win-buttons" adds these buttons to your window: