[comp.sys.hp] Colormap changing and gwm...

scott@grlab.UUCP (Scott Blachowicz) (03/14/90)

Hi-
  I'm running gwm 1.5d on an HP9000/375 with HP-UX 6.5. I'm using HP's
xwcreate program to create a window for use with their Starbase
graphics package(using the "sox11" driver). At any rate, Starbase sets
up a colormap for the X-window that I don't want it to do. After
initialization, I set the window's colormap back to the root-window's
colormap with code that looks like this:

   XGetWindowAttributes (display, graph_child_id, &graph_attr);
   XGetWindowAttributes (display, root_window, &root_attr);
   XSetWindowColormap (display, graph_child_id, root_attr.colormap);
   XFreeColormap (display, graph_attr.colormap);
   XSync (display, 0);

The colormap gets setup OK...I inquire it later and it is then set to
the root colormap. However, gwm will complain about it with messages
like this:
   Gwm X error: X_InstallColormap(0x1495c): no such colormap
It seems gwm isn't recognizing the colormap change. Is there some
magic I need to do to get gwm to recognize a ColormapNotify? or am I
doing things the wrong way?

Thanx,
--
Scott Blachowicz                E-mail:  scott@grlab.UUCP
USPS:  Graphicus                 ..or..  ...!hpubvwa!grlab!scott
       150 Lake Str S, #206     VoicePh: 206/828-4691
       Kirkland, WA USA 98033   FAX:     206/828-4236

stroyan@hpfcso.HP.COM (Mike Stroyan) (03/16/90)

>  I'm running gwm 1.5d on an HP9000/375 with HP-UX 6.5.  I'm using HP's
>xwcreate program to create a window for use with their Starbase
>graphics package (using the "sox11" driver).  At any rate, Starbase sets
>up a colormap for the X-window that I don't want it to do.

The sox11 driver will allocate a new colormap if it needs to, but will
use the default colormap if it can.  The following actions require a
new colormap-

	gopen with either INIT or RESET_DEVICE
	shade_mode with INIT
	define_color_table
	double_buffer
	display_enable

If you avoid these actions you can sidestep the GWM problem.
When you gopen without the INIT flag you will probably want to call
clear_view_surface to clear the window, since gopen will not do it.

Mike Stroyan, stroyan@hpfcla.hp.com