From: Dave Thomas <Dave@...>
Date: 2001-03-10T04:30:47+09:00
Subject: [ruby-talk:12354] Re: Can Ruby-GTK display Gif Png or Jpeg files?

Phlip <phlip_cpp@my-deja.com> writes:

> Ruby-san:
> 
> My mom got my kid a NickClick Mattel toy digital camera - it comes with a 
> goofy image program over-written for Windows 98.
> 
> I only have Linux computers in my life.
> 
> I found a program on the 'net that reads the camera's dinky protocol and 
> writes JPG and other formats. I want to script a program that displays all 
> these pictures in windows, with a button saying "Acquire".
> 
> Because this looked too easy in an older language, I decided to make it 
> harder by using this project to learn Ruby.
> 
> But not so hard I have to learn the guts of JPEG.
> 
> How do I read a file containing a common graphics and display it on a GTK 
> (or Tk) window?

There's some basic code from the book that does this with Tk at 

   http://www.pragmaticprogrammer.com/ruby/samples/smp161.html

this might be a start. I've never used a TkPhotoImage with a .jpg
though, so I'm not sure if the support if there. You may have to use
gifs if not.


Regards


Dave