Hi If you do it using cairo you might be interested in the following function.
cairo_image_surface_get_data() You get the pixels stored in your picture. It can be restored using memcpy() what is actually quiet fast. Bests, Joël On Tue, Mar 21, 2017 at 8:26 AM, F.Reiter <franz.rei...@cadcam.co.at> wrote: > Hallo, > for lightning-fast, xor, rubberbanding, zooming, clipping .. > why not consider Open-GL ? > Franz > (https://github.com/gcad3d/gcad3d) > > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
