#include static void activate(GtkApplication* app, gpointer user_data) { GtkWidget *window; window = gtk_application_window_new(app); gtk_window_set_title(GTK_WINDOW(window), "TheDcoder's Window"); gtk_window_set_default_size(GTK_WINDOW(window), 200, 200); gtk_widget_show_all(window); } int main(void) { GtkApplication *app; int status; app = gtk_application_new("org.gtk.example", G_APPLICATION_FLAGS_NONE); g_signal_connect(app, "activate", G_CALLBACK(activate), NULL); status = g_application_run(G_APPLICATION(app), 0, NULL); g_object_unref(app); return status; }