Martin Buchholz writes:
Martin> However, the default visual is only 8-bit. This is a decision by Sun
Martin> (mistaken, in my opinion) to improve backward compatibility with old
How mistaken indeed. It has always surprised me to find apps running
properly under PseudoColor displays and not under TrueColor ones.
Martin> A system administrator can change the default visual by copying
Martin> /usr/dt/config/Xservers to /etc/dt/config and hacking it to add
Martin> under-documented flags like -defdepth 24. Few system administrators
Martin> will be able to figure this out.
You can also launch directly your Xserver with options changing the
default depth. When running a Creator3D machine, I've been using this for
several years now (the dev option is needed if you want to mess up with the
| openwin -dev /dev/fb defclass TrueColor defdepth 24
Martin> An application running in this kind of environment should be able to
Martin> recognize that the display is truly 24-bit and create 24-bit windows.
Martin> For example, recent netscape's do this properly.
Martin> xwininfo on a netscape window: Depth: 24 Visual Class: TrueColor
Martin> xwininfo on a xemacs window: Depth: 8 Visual Class: PseudoColor
I don't quite understand what you mean here. If you're running under a
TrueColor 24 visual BY DEFAULT and don't mess up with it (neither with the
colormap), you simply get windows of the same visual. Here, your X server was
probably not launched with TrueColor24 by default, and I wouldn't be surprised
that netscape comes with the --install option (and a private colormap).
If you're telling us that /regardless/ of the default visual, XEmacs
should use the best one by default, I strongly disagree. For instance, if you
have PseudoColor8 by default and force XEmacs to use TrueColor24, you'll get
colormap flashing because it needs a different one (remeber there's a strong
relation between the visual you choose and the colormaps you can use) and user
On the other hand, you can use the -visual option to change the
default visual. BTW, I'd be curious to see if XEmacs is clever enough, when
given the -visual option, to figure out whether he needs a private colormap
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