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Re: widget_table [message #54982 is a reply to message #54889]

Thu, 19 July 2007 16:12

Michael Galloy
Messages: 1114
Registered: April 2006

Senior Member

On Jul 19, 1:24 pm, 2...@onetel.com wrote:
> Naively, as "table" is the WidgetID from above, in the PRO
> imager_parameters_quit_event, routine i put:
>
> WIDGET_CONTROL, table, GET_VALUE=table_value
>
> to which IDL responded by saying "Variable is undefined: TABLE", so
> i'm clearly doing something not right.

Did you add that WIDGET_CONTROL *after* you defined table?

> As I'm really a beginner with widgets could you indicate how i either
> "Store tableID either in your quit button uvalue" or "save a pointer
> to a structure".

Get David's book.

> As a beginner i do find the help in the IDL rather limited, it could
> do with more but really simple examples how how to do the things with
> widget that people want. Generally i find the examples to long and
> complicated you get lost in all the different things that are going
> on.

The two examples programs I see for table widgets are 59 and 129 lines
long. It's hard to write a widget program that actually does something
in much shorter. Here are the example programs in case you haven't
seen them:

http://idlastro.gsfc.nasa.gov/idl_html_help/Example_Single_D ata_Type_Data.html
http://idlastro.gsfc.nasa.gov/idl_html_help/Example_Structur e_Data.html

> Would you know any websites where i can find simple examples of
> table widget codes.

Not specifically table widgets, but I think you should try to
understand this problem more generally, then try to learn the
specifics of table widgets. The article David originally referred you
to would be a good start (better yet, his book).

Mike
--
www.michaelgalloy.com

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[Message index]

		widget_table By: R.Bauer on Mon, 26 April 1999 00:00
		Re: widget_table By: davidf on Wed, 23 February 2000 00:00
		Re: widget_table By: Ben Tupper on Thu, 24 February 2000 00:00
		Re: widget_table By: davidf on Thu, 24 February 2000 00:00
		Re: widget_table By: Pavel Romashkin on Thu, 24 February 2000 00:00
		Re: widget_table By: reardonb on Thu, 24 February 2000 00:00
		Re: widget_table By: davidf on Wed, 23 February 2000 00:00
		Re: widget_table By: Jean H. on Thu, 24 May 2007 09:01
		Re: widget_table By: David Fanning on Thu, 24 May 2007 09:03
		Re: widget_table By: 2d on Thu, 19 July 2007 12:24
		Re: widget_table By: Michael Galloy on Thu, 19 July 2007 16:12
		Re: widget_table By: Jean H. on Tue, 17 July 2007 14:21
		Re: widget_table By: David Fanning on Tue, 17 July 2007 14:21

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