gtk2/docs/reference/gtk/gtk-overrides.txt

# These are manually-edited to override or add declarations to those scanned
# from the GTK header files.

# These haven't been given parameter names in the header files.
<USER_FUNCTION>
<NAME>GtkArgGetFunc</NAME>
<RETURNS>void</RETURNS>
GtkObject *object,
GtkArg *arg,
guint arg_id
</USER_FUNCTION>

<USER_FUNCTION>
<NAME>GtkArgSetFunc</NAME>
<RETURNS>void</RETURNS>
GtkObject *object,
GtkArg *arg,
guint arg_id
</USER_FUNCTION>

# GtkAllocation is the same as GtkRectangle

<STRUCT>
<NAME>GtkAllocation</NAME>
struct GtkAllocation
{
  gint x;
  gint y;
  gint width;
  gint height;
};
</STRUCT>