If I use gtk_style_context_add_class(context, "header");
The background drawn to the event box window is transparent on my computer. I just used "menu" to test a different color from the theme but there are many that you can test. The style classes are at the bottom of the documentation page. https://developer.gnome.org/gtk3/stable/GtkStyleContext.html I painted the main window green so that I could see if the event box window gets drawn to and also to distinguish widgets that don't have windows like the GtkLabel, GtkBox and GtkGrid. Another option is to have a CSS file for the header widget and use that although then you get away from using the users theme. I have tried using the deprecated function gtk_style_context_get_background_color() to peak at if there is a constant background color set and what it might be but that function isn't going to work for a gradient or image so it is only a partial solution for checking the style class background. Still trying to figure out these things myself. Eric _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
