Greetings all

I'm running Fluxbox with an XScreensaver hack as a wallpaper. Recently I added a second monitor, and now whichever hack I'm running gets stretched across both monitors. For some hacks that's OK, but for most it makes them look crummy.

When Xscreensaver activates (as an actual screensaver), it treats the two monitors separately and puts a separate (and different) hack in each one. A quick search tells me that was a deliberate choice since JWZ rightly believes it looks better that way. Is there a not-too-hard way to get an individual hack to behave in the same way when I start it on its own with the -root extension?

I found a partial answer today. It looks like the daemon creates a separate virtual root window for each screen, then uses either XSCREENSAVER_WINDOW or the -window-id option to tell each hack which window to use. That's handy since -window-id is missing from some of the man pages, but it also suggests there's no easy way to get a per-window hack in the wallpaper, other than opening a couple of big windows and setting them to "always on bottom". Unless...

Anyone know a desktop manager that can create separate virtual root windows?

pcmanfm --desktop does what I want - two separate virtual root windows, one per physical screen. As a bonus(?) it doesn't do much with one of the screens, unless I'm missing something.

A few DDGs and manpages later I came up with this:
(For my fellow non-gurus, it gets a list of open windows, chooses one named "pcmanfm" with the appropriate size, and passes its ID to the starwars hack, which then draws on the window.)

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