Tizen Native API  5.0
bg_cxx_example_01.cc
#define EFL_CXXPERIMENTAL // for background part
#include <Elementary.hh>

using efl::eo::instantiate;

EAPI_MAIN int
elm_main (int argc EINA_UNUSED, char **argv EINA_UNUSED)
{
   efl::ui::Win win(instantiate);
   win.text_set("Window Background");
   win.autohide_set(true);
   win.size_set({320,320});
   win.background().color_set(139, 69, 19, 255);

   // Clean exit
   elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
   efl::eolian::event_add(efl::ui::Win::delete_request_event, win,
                          std::bind([&](){ win = nullptr; }));

   elm_run();
   return 0;
}
ELM_MAIN()