AUG
8
2003

greetings from Chile

I am on the last night of a 4-night observing run at the Magellan 6.5-m telescope, and KStars has been my lovely-and-talented observing assistant for the whole run.

It's great to be on a mountain again; prior to this, I hadn't been observing at all in 3 years. The weather's been great, the telescope is incredible, and the winter nights are long down here, so I'm getting lots of good data.

On the long flight back tomorrow (if I don't sleep the whole way), I hope to finish a new feature for KStars I've been working on: command-line image-dump mode! By starting kstars with command line arguments (kstars --dump --width=800 --height=600 --filename="foo.png"), it will generate an image based on the settings in your kstarsrc without opening a GUI at all.

This feature is to answer many requests we've had for running kstars dynamically as the desktop background. You can just run a cron job that will generate an image the size of your desktop, and set the background through DCOP. I've actually heard that kcontrol is capable of setting up a program to periodically generate the background image, but I haven't ever seen such a thing. Anyone know more about that?

Of course, running kstars this way every N minutes might not be very efficient, because it has to initialize itself first, which will hog the CPU for maybe 5-10 seconds. The alternative is to have a mode where kstars lies loaded-but-dormant in the system tray, ready to serve up images on a moment's notice. The trade-off is that the idling kstars is using ~50 MB of your precious RAM. Anyway, where can I learn about adding a program to the system tray?

Ok, now for my obligatory request: how about a KDE-Edu "Project" category?! I'm tired of filing under boring old "KDE General". What do you say, Ian? There's at least 4 of us Edu-ers signed up here...

Comments

> I’ve actually heard that kcontrol is capable of setting up a program to periodically generate the background image, but I haven’t ever seen such a thing.

KDE 3.1: Appearance & Themes/Background, Background tab, select Background Program in the Mode combo-box and click on Setup...

HEAD: Appearance & Themes/Background, click on Advanced Option... and enable Use the following program for drawing the background:


By KDE User at Fri, 08/08/2003 - 07:03