- finds that window on the screen by its title;
- finds the position of the third subwindow of its first subwindow;
- moves the mouse there;
- generates a mouse-click event.
I am utterly repulsed by this, but it works (for now), and hopefully when I have a power failure in the future (as tonight), then my home icecast stream will re-start automatically instead of staying dead until I come home and click the shiny, candy-like button.