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Re: use of a button

  • To: mathgroup at smc.vnet.net
  • Subject: [mg106930] Re: [mg106909] use of a button
  • From: DrMajorBob <btreat1 at austin.rr.com>
  • Date: Thu, 28 Jan 2010 02:46:29 -0500 (EST)
  • References: <201001271124.GAA13543@smc.vnet.net>
  • Reply-to: drmajorbob at yahoo.com

rose = Import["ExampleData/rose.gif"];
Button["Show rose", Print@rose]

Bobby

On Wed, 27 Jan 2010 05:24:46 -0600, Alexei Boulbitch  
<Alexei.Boulbitch at iee.lu> wrote:

> Dear Community,
>
> I have a lack of understanding.  (OK, I have many, but today it is about
> only one of them).  I want to make a button to show in my presentation
> an image upon pressing. However, the operation like
>
> Button["Image name", image_identifier] does not work. To be concrete,  
> this:
>
> rose = Import["ExampleData/rose.gif"];
> Button["Show rose", rose]
>
> does not return the image. I cannot get, why?
>
> I can avoid the problem say, like this:
>
> Button["Show rose", CreateDocument[rose, WindowSize -> {100, 100}]]
>
> I post this question, since I would like to understand, what is wrong
> with simple operators like  Button["Show rose", rose] or Button["Show
> rose", Show@rose] or such a variant Button["Show rose",
> Import["ExampleData/rose.gif"]] and how should I choose right operators
> to be used inside the Button?
>
> Regards, Alexei
>


-- 
DrMajorBob at yahoo.com


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