Unfortunately I have to abandon this for now. While it works very well on the
Openbox window manager, it fails in various ways on some of the others I've
tried.
Gnome is utterly hopeless (I hadn't realised how bad that had become - not
having run it for years).
xfce doesn't return keyboard focus
After a couple of false starts I've quite a bit of progress. At the moment I've
only fully implemented a few top lever windows and the code doesn't currently
remember the last window selected.
Show, Hide, Xpos, Ypos, Width, Height
All work with three letter minimum for:
main (master window)
I've at last made a small amount of progress on this.
>From the CLI it can open and close a few top level windows. There are some
canaries so I can check exactly what's being received. I've decided it's better
to pass through numeric values rather then strings, with the usual CLI style
encoding and