I want to compile and run examples of how to use the GTK3 library for my C-programs, but when I run them they only consist of a blank empty space (no buttons or text).
I'm running Ubuntu 12.04 with GTK-3.0
Some examples I tried to compile and run are these: http://developer.gnome.org/gtk3/3.0/gtk-getting-started.html
GCC output no errors or warnings with flag pkg-config --cflags --libs gtk+-3.0
also no warnings when running the binary.
What am I missing?