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You can draw individual pixels with the two methods Gdk::Drawable::draw_point() and
Gdk::Drawable::draw_points(). All drawing methods take a Gdk::GC as their first
argument, except where noted. The other two arguments to draw_point() are the x coordinate
(horizontal position relative to the left edge of the widget, starting at 0), and the y coordinate (vertical position
relative to the top of the widget, starting at 0). draw_points() takes two or three arguments,
either a Gdk::Points or a Gdk::Point and a size.
The first is of course the Gdk::GC.
gtkmm gives you a variety of ways to construct a Gdk::Points, from using a
vector<Gdk::Point>
to a simple Gdk::Point * and a size. So for example draw_point()
could be used like this:
get_window().draw_point(some_gc, 20, 20); But a draw_points() is a bit more complicated and might be used like this: Gdk::point *points_array=new Gdk::point[2]; points_array[0]=Gdk::point(10, 10); points_array[1]=Gdk::point(20, 20); draw_points(some_gc, points_array, 2); //One way to draw the two points. Gdk::points some_points(points_array, 2); draw_points(some_gc, some_points); //The same drawing as the line above. |