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MathGroup Archive 2004

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Re: closing notebook cells

  • To: mathgroup at smc.vnet.net
  • Subject: [mg51798] Re: [mg51762] closing notebook cells
  • From: John Fultz <jfultz at wolfram.com>
  • Date: Tue, 2 Nov 2004 02:05:42 -0500 (EST)
  • Reply-to: jfultz at wolfram.com
  • Sender: owner-wri-mathgroup at wolfram.com

On Mon, 1 Nov 2004 02:52:43 -0500 (EST), Barthelet, Luc wrote:
> As I learned in mathgroup a few years ago I am using the following code
>
> to close automatically my graphics groups.
>
> CloseAnim[]:=(SelectionMove[EvaluationNotebook[],All,GeneratedCell];
> FrontEndTokenExecute["OpenCloseGroup"];);
> CloseAnim::usage = "CloseAnim[]";
>
> For example:
>
> Table[Show[Graphics[
> {Hue[Random[] ],Rectangle[{0,0},{1,1}]
> }]],{3}];
> CloseAnim[];
>
> The problem is that when I only generate a single cell "OpenCloseGroup"
> will generate a beep.
>
> Any idea on how to prevent that beep or test if GeneratedCell selected a
> single or several cells?
>
> Thanks
>
> Luc

LinkWrite[$ParentLink, CellInformation[EvaluationNotebook[]]];
Length[LinkRead[$ParentLink]]

If the length is greater than 1, then you can use the OpenCloseGroup token.

CellInformation[] is new to version 5 and is, in general, a very good way 
to test various properties of the selection without having to do a 
NotebookRead[] (which could get very expensive if you have a selection 
which consumes a lot of memory).

Sincerely,

John Fultz
jfultz at wolfram.com
User Interface Group
Wolfram Research, Inc.



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