GtkNotebook::set_tab_border
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()
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