void gtk_overlay_set_measure_overlay ( GtkOverlay* overlay, GtkWidget* widget, gboolean measure )
widget is included in the measured size of
The overlay will request the size of the largest child that has
this property set to
TRUE. Children who are not included may
be drawn outside of
overlay‘s allocation if they are too large.
An overlay child of
The data is owned by the caller of the method.
Whether the child should be measured.