GtkNotebook::set_tab_border

void set_tab_border(int border_width);

Sets the border around all edges of the tabs to border_width. This is equivilent to calling set_tab_hborder() and set_tab_vborder() with the same value.

This method is deprecated in GTK+ and should not be used in new code. Instead you should use set_tab_hborder() and set_tab_vborder() .

See also: set_tab_hborder() , set_tab_vborder()