| Number of colors of widget appliation [message #17982] |
Tue, 23 November 1999 00:00  |
Carsten Dominik
Messages: 45
Registered: February 1998
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Member |
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Hi.
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
IDL> launch_my_appl.
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
somewhere else.
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?
Thanks.
- Carsten, desperate, after a day of fiddling.
--
Carsten Dominik <dominik@astro.uva.nl> \ _ /
Sterrenkundig Instituut "Anton Pannekoek" |X| _
Kruislaan 403; NL-1098 SJ Amsterdam /| |\ _ _ _/ \
phone +31 (20) 525-7477; FAX +31 (20) 525-7484 ___|o|____/ ~~ \___/ ~~~~~
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