GTK+ and GdkPixbuf

I think I've got an understanding problem of GTK. My simple application has a stream of images and I'd like to display them within my GTK Window. Up to now, it looks like this:

GdkPixbuf *pb = gdk_pixbuf_new_from_data(img2, GDK_COLORSPACE_RGB, 
                     FALSE, 24/3, 320, 240, 320*3,
                     NULL, NULL);
if(pb == NULL)
    fprintf(stderr, "Pixbuf is null!\n");

if(image != NULL)
    gtk_container_remove(GTK_CONTAINER(window), image);
image = gtk_image_new_from_pixbuf(pb);
gtk_container_add(GTK_CONTAINER(window), image);

printf("Updated!\n");

img2 is my (rgb) buffer that gets updated from a stream each time. I guess gtk_container_remove and gtk_container_add might be stupid to use for this?

Here's what I've got in addition:

GtkWidget *window;
GtkWidget *image;

gtk_init(&argc, &argv);

window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

gtk_signal_connect(GTK_OBJECT(window), "destroy",
           GTK_SIGNAL_FUNC(destroy), NULL);

    /* ... */
    start_routine_for_stream_that_calls_the_above(...)
    /* ... */

gtk_widget_show_all(window);
gtk_main();

My problem is that it's not working this way... either I see only the last GdkPixbuf image or I see none, which is the correct behavi开发者_如何学Goour ...

But how do I manage it to show an (stream of) updated GdkPixbuf?

Thanks for help

You need to be running the main loop while you change the images. For instance, you can do gtk_main() and use g_timeout_add() to schedule your callback to run say every second and replace images within that callback.