THE FIRST GTK CODE

#include <gtk/gtk.h>

int main (int argc, char **argv) {

gtk_init (&argc, &argv);

// gtk code comes here

gtk_main ();

return 0;

}

#include <gtk/gtk.h>

static void activate (GtkApplication *app, gpointer user_data) {

// gtk code comes here

}

int main (int argc, char ** argv) {

GtkApplication *app;

int ret;

app = gtk_application_new ("in.aducators", G_APPLICATION_FLAGS_NONE);

g_signal_connect (app, "activate", G_CALLBACK(activate), NULL);

ret = g_application_run (G_APPLICATION(app), argc, argv);

g_object_unref (app);

return ret;

}