程式語言 - GTKmm - v3.0 - Hello, world!

參考資訊：
https://github.com/gammasoft71/Examples_Gtkmm
https://docs.gtk.org/gtk3/getting_started.html

main.cpp

#include <gtkmm.h>

using namespace Glib;
using namespace Gtk;

class Form : public Window {
public:
    Form() {
        set_title("Hello, world!");
        resize(320, 240);
        show_all();
    }
};

int main(int argc, char* argv[]) {
    RefPtr<Application> app = Application::create(argc, argv);

    Form form;
    return app->run(form);
}

編譯、執行

$ g++ main.cpp -o main $(pkg-config --libs --cflags gtkmm-3.0)
$ ./main