Hi all. I managed to procure the following code from http://rosettacode.org/wiki/Color_of_a_screen_pixel, that retrieves the pixel color values. This works in gtk.
####################################################### import gtk import gobject def get_pixel_colour(i_x, i_y): o_gdk_pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, 1, 1) o_gdk_pixbuf.get_from_drawable(gtk.gdk.get_default_root_window(), gtk.gdk.colormap_get_system(), i_x, i_y, 0, 0, 1, 1) print tuple(o_gdk_pixbuf.get_pixels_array().tolist()[0][0]) def f(): for i in range(0, 50): get_pixel_colour(5, i) win = gtk.Window() win.show() gobject.timeout_add(5000, f) gtk.main() ####################################################### Now, as the next thing, I would require the way to "set" color in a pixel, given its x- and y-coordinates. Any ideas please? :) On Sat, Jul 6, 2013 at 6:36 PM, Ajay Garg <ajaygargn...@gmail.com> wrote: > Hi all. > > How can we get the color of each pixel on the "current screen" > (possibly beginning from > http://www.pygtk.org/docs/pygtk/class-gdkscreen.html)? > > The use-case is as follows :: > > * Let's say, I compare two rows of pixels on the current screen. > * The first row is "all white". > * The second row is interspersed with "black and white". > * For every such "black and white" row, replace it with an "all white" > row. > > > > I am a coder myself, so all I need are some pointers :) > > Looking forward to some help :) > > > Thanks and Regards, > Ajay Thanks and Regards, Ajay _______________________________________________ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/