[ruby-gnome2-devel-en] cannot set pixbuf pixels - how to modify an image?

[Michal S. <hra...@ce...>]

Hello

I am using:

libgtk2-ruby1.8              0.19.0-3

I get:

image.rb:27:in `step': undefined method `pixels=' for
#<Gdk::Pixbuf:0xb790c970 ptr=0x8ff1c38>
	 from image.rb:32:in `on_button_clicked'
	 from image.rb:5:in `to_proc'
	 from image.rb:77:in `call'
	 from image.rb:77:in `main'

the pixels= method is documented here:

http://ruby-gnome2.sourceforge.jp/hiki.cgi?Gdk%3A%3APixbuf

Without reloading the pixels the image seems unchanged.

Any advice on modifying images welcome.

I want to change individual pixels programatically and view the
results in realtime, hence the pixels accessor. I just want to
visually verify what is done to the image, I am not particularly
interested in performance. While it would be possible to draw the
image programatically as well I would prefer loading a test pattern
from a file so that it can be replaced easily.

Thanks

Michal