Getting a GdkPixbufs from a GtkTextBuffer

[Matí­as Alejandro Torres <torresmat gmail com>]

Hi,

If I insert a GdkPixbuf inside a GtkTextBuffer with the function 
gtk_text_buffer_insert_pixbuf, how do I recover the inserted GdkPixbuf 
from the GtkTextBuffer?

Thanks in advance, Matías.