Re: Get & Set pixel from a pixmap.

[Oliver Singla <oliver-singla nc rr com>]

Eleni Ryan wrote:

> Hi,
>
> I want to get & then set a pixel value from a GdkPixmap, but can't seem to
> find where to start.  I see that pixels can be manipulated in a GdkImage
> using gdk_image_get_pixel() & gdk_image_put_pixel(), however I need to
> manipulate an off-screen pixmap rather than a copy of the window.
>
> Does anybody have any idea how to do this or an example?
>
> Thanks,
> Eleni
>
> _______________________________________________
> gtk-list mailing list
> gtk-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtk-list

Months ago I started a life game under the GTK, and I used a GdkPixmap
to hold the cells. I used gdk_draw_points() inside the pixmap. 
Surprisly, I found this pretty fast. In case that would be useful,
here is the source:
http://glg.logafet.firstream.net/freelife/

Olivier