Inserts @text at @position in the list of strings stored in @combo_box.
If @position is negative then @text is appended.
This is the same as calling [method@Gtk.ComboBoxText.insert] with a %NULL ID string.
An index to insert @text
A string
See Implementation
Inserts @text at @position in the list of strings stored in @combo_box.
If @position is negative then @text is appended.
This is the same as calling [method@Gtk.ComboBoxText.insert] with a %NULL ID string.