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From: roger@hpnmdla.HP.COM (Roger Petersen)
Newsgroups: comp.windows.x
Subject: Re: Setting root in colour on HP9000/300
Message-ID: <990012@hpnmdla.HP.COM>
Date: 5 Feb 91 02:54:46 GMT
References: <1991Jan25.154045@axion.bt.co.uk>
Organization: HP Network Measurements Div, Santa Rosa, CA
Lines: 22

In comp.windows.x, ravis@axion.bt.co.uk (Richard Avis) writes:

| Although I haven't got a colour workstation (boo-hoo),
| I was wondering if anyone has any experience in setting the root picture
| on an HP9000/300 display running X11R4 (on HP-UX) version 7, in colour,
| from a gif file.
| 
| Can it be done, if so, how did you do it?

You bet.  I've used both xsetrootgif and xloadimage.

Make sure you have a new (2.0+?) version of xloadimage... old versions didn't
release the colors they allocated when you destroyed the root image.
(Programs that modify the root window are supposed to set a property on the
root window, to allow future freeing of the pixmap by other applications.)

Anyway, it works great.  The performance under X11R4 is pretty good too.
With a 1024x768 13-color simpsons.gif background, when I iconify an 80x32
(~660x550 pixel) window, the root GIF image is redrawn in about 250 to 300
milliseconds. (98549 Catseye graphics card).  Newer graphics cards are faster.

Roger