void gtk_info_bar_add_buttons ( GtkInfoBar* info_bar, const char* first_button_text, ... )
Adds multiple buttons.
This is the same as calling
repeatedly. The variable argument list should be
gtk_info_bar_new_with_buttons(). Each button must have both
text and response ID.
Deprecated since: 4.10
Please do not use it in newly written code.
This method is not directly available to language bindings.