invento

#include <gtk/gtk.h>

/*** Aqui va ir la primera función para la suma ***/

main (int argc, char *argv[])
{
    GtkWidget *window;
    GtkWidget *label1, *label2, *label3;
    GtkWidget *table;
    GtkWidget *entry1, *entry2, *entry3;
    GtkWidget *button;

    gint xoptions, yoptions;

    gtk_init(&argc, &argv);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title(GTK_WINDOW(window), "invento");
    gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);

    gtk_container_border_width (GTK_CONTAINER(window), 5);

    table = gtk_table_new (3, 3, TRUE);

    label1 = gtk_label_new("Datos:");
    gtk_table_attach(GTK_TABLE(table), label1, 0, 1, 0, 1,
                         xoptions,  yoptions, 0, 0);
    gtk_widget_show(label1);

    entry1 = gtk_entry_new();
    gtk_table_attach(GTK_TABLE(table), entry1, 0, 1, 1, 2,
                         xoptions,  yoptions, 0, 0);
    gtk_widget_show(entry1);

    label2 = gtk_label_new("+");
    gtk_table_attach(GTK_TABLE(table), label2, 1, 2, 1, 2,
                         xoptions,  yoptions, 0, 0);
    gtk_widget_show(label2);

    entry2 = gtk_entry_new();
    gtk_table_attach(GTK_TABLE(table), entry2, 2, 3, 1, 2,
                         xoptions,  yoptions, 0, 0);
    gtk_widget_show(entry2);

    button = gtk_button_new_with_label("   Igual a   ");
    gtk_table_attach(GTK_TABLE(table), button, 0, 1, 2, 3,
                         xoptions,  yoptions, 0, 0);
    /**** Aqui va ir la llamada a la función proximamente ****/
    /*** Función ***/

    gtk_widget_show(button);

    label3 = gtk_label_new("->");
    gtk_table_attach(GTK_TABLE(table), label3, 1, 2, 2, 3,
                         xoptions,  yoptions, 0, 0);
    gtk_widget_show(label3);

    entry3 = gtk_entry_new();
    gtk_table_attach(GTK_TABLE(table), entry3, 2, 3, 2, 3,
                          xoptions,  yoptions, 0, 0);
    gtk_widget_show(entry3);

    g_signal_connect(G_OBJECT(window), "destroy",
                     G_CALLBACK(gtk_main_quit), NULL);

    gtk_container_add(GTK_CONTAINER(window), table);

    gtk_widget_show_all(window);

    gtk_main();
    return 0;
}