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Number of colors of widget appliation
- Subject: Number of colors of widget appliation
- From: Carsten Dominik <dominik(at)astro.uva.nl>
- Date: 23 Nov 1999 16:41:35 +0100
- Distribution: world
- Newsgroups: comp.lang.idl-pvwave
- Organization: Dept. of Math., Comp. Sc., Phys., Astro., University of Amsterdam
- Xref: news.doit.wisc.edu comp.lang.idl-pvwave:17461
I am develloping a widget application with IDL. The widget contains a
couple of draw windows. One displays an image I read from a jpg file,
the other display graphic objectes.
I do not have enough colors in the widget program, and I would like to
use more. Of course I went through Dave Fannings web site and found
the tip how to force IDL to use a certain number of colors.
So I tried to add an COLORS ekyword to the widget_draw commands, but
that does not work. IDL still shares the colors with my desktop and
allocates too few colors.
The I thought: lets try to be clever: I just open a window before I
start my widget application. So I did
IDL> window, colors=200
What happens is this: The "window" call indeed allocates a large
number of colors. The widget application seems to use many colors as
well, but it dissplays them with the shares color map - totally
wrong. THis is independant of where my cursor is - on the widget or
Now, when I move the cursor to the window I opened with "window, colors=200",
the draw window in the widget shows the correct colors, but the rest
of the widget is wrong.
So how can I make the main window of a widget allocate its own color
table and share it with all child objects in that widget?
- Carsten, desperate, after a day of fiddling.
Carsten Dominik <firstname.lastname@example.org> \ _ /
Sterrenkundig Instituut "Anton Pannekoek" |X| _
Kruislaan 403; NL-1098 SJ Amsterdam /| |\ _ _ _/ \
phone +31 (20) 525-7477; FAX +31 (20) 525-7484 ___|o|____/ ~~ \___/ ~~~~~