GTK+ Forums

/* compile using:
cc -Wall -g `pkg-config --cflags --libs gtk+-2.0`  -o example main.c
*/

#include <gtk/gtk.h>

void on_window_map (GtkWidget*, gpointer);
void on_window_realize (GtkWidget*, gpointer);
void on_window_show (GtkWidget*, gpointer);
               
int
main (int argc, char *argv[])
{
       
        GtkWidget *window;
   int a;
       
        /* initialize the GTK+ library */
        gtk_init (&argc, &argv);

        /* create main window */
        window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
        gtk_window_set_title (GTK_WINDOW (window), "Example");
        gtk_container_set_border_width (GTK_CONTAINER (window), 10);
        gtk_widget_set_size_request (window, 200, 100);
       
        /* connect signals */
        g_signal_connect (G_OBJECT(window), "destroy",
                        G_CALLBACK (gtk_main_quit), NULL);
        g_signal_connect (G_OBJECT(window), "realize",
                        G_CALLBACK (on_window_realize), NULL);
        g_signal_connect (G_OBJECT(window), "map",
                        G_CALLBACK (on_window_map), NULL);
        g_signal_connect (G_OBJECT(window), "show",
                        G_CALLBACK (on_window_show), NULL);       
               
        /* show the main window */
        gtk_widget_show (window);
     
       
       gtk_main ();
       
        return 0;     
}

void
on_window_map (GtkWidget *w,gpointer user_data)
{
        g_print("Window was mapped.\n");
}

void
on_window_realize (GtkWidget *w,gpointer user_data)
{
        g_print("Window was realized.\n");
}

void
on_window_show (GtkWidget *w,gpointer user_data)
{
   int x;
        g_print("Window was shown.\n");
   printf("Insert x  :  ");
   scanf("%d",&x);
}

g_signal_connect (G_OBJECT(window), "event-after",
                G_CALLBACK (on_event_after), NULL);

/* ... */

void
on_event_after (GtkWidget *widget,
                GdkEvent *event,
                gpointer user_data)
{
   if (event->type == GDK_EXPOSE)
   {
        int x;
        g_print("Window was shown & exposed.\n");
        printf("Insert x  :  ");
        scanf("%d",&x);
   }
}