On 5/28/07, Francis BACQUE <[EMAIL PROTECTED]> wrote: > how can I retrieve the color of a pixel at x,y coordinates of a > Gdk::Pixbuf?
I have a set of helpers here: http://people.iola.dk/olau/misc/pixbuf-drawing.hpp You instantiate a PixelPosition with get_position(pixbuf, x, y). The pixel position can be moved around efficiently, and you can get to the pixel underneath with PixelPosition::pixel(), e.g. Pixel p = get_position(pixbuf, x, y).pixel(); p.red() = 0xFF; p.green() = 0xAF; p.blue() = 0xAF; p.alpha() = 0x50; There's also PixelIterator for iterating through all pixels of a pixbuf. -- Ole Laursen http://www.iola.dk/ _______________________________________________ gtkmm-list mailing list gtkmm-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtkmm-list
