gtk-button-helloworld.c

gtk-button-helloworld.c

/* 
gcc -Wall -o gtk-button-helloworld gtk-button-helloworld.c $(pkg-config --libs --cflags gtk+-2.0) 
*/

#include <gtk/gtk.h>

static void button_callback(GtkButton *button, gpointer user_data)
{
	g_print(user_data);
}

int main(int argc, char **argv)
{
	GtkWidget *window;
	GtkWidget *button;

	gtk_init(&argc, &argv);

	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	button = gtk_button_new_with_label("Hello world");
	g_signal_connect(button, "clicked", G_CALLBACK(button_callback), "Hello world!!!\n");
	g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
	gtk_container_add(GTK_CONTAINER(window), button);

	gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
	gtk_window_set_title(GTK_WINDOW(window), "Hello gtk world");

	gtk_widget_show_all(window);
	
	gtk_main();
	return 0;
}