Sets the pixbuf to be displayed as logo in the about dialog. If it is %NULL, the default window icon set with gtk_window_set_default_icon() will be used.
a #GdkPixbuf, or %NULL
2.6
See Implementation
Sets the pixbuf to be displayed as logo in the about dialog. If it is %NULL, the default window icon set with gtk_window_set_default_icon() will be used.