I seem to be the only one having trouble with this, but i can't seem to find 
the solution, and i have spent countless hours on it.  I cannot render the 
pixbuf to the drawable 'drawing_area->window'.  I get this error when i 
execute my program:

** CRITICAL **: file gdk-pixbuf-render.c: line 212 
(gdk_pixbuf_render_to_drawable): assertion `drawable != NULL' failed.

here is my expose event, from which i think the problem is coming:

static gint expose_event(GtkWidget *widget, GdkEventExpose *event)
GdkPixbuf *pixbuf = gtk_object_get_data(GTK_OBJECT(widget), "pixbuf");

//render the pixbuf
			event->area.x, event->area.y,
			event->area.x, event->area.y,
			event->area.width, event->area.height,

return FALSE;

if anyone can help me with this i would greatly appreciate it.  like i said, 
i have been working on it for a while and i would not have posted it if i 
didn't really need some help. thanks.
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