gtk/print.go
func (ps *PrintSettings) SetPaperHeight(width float64, unit Unit) {
	C.gtk_print_settings_set_paper_height(ps.native(), C.gdouble(width), C.GtkUnit(unit))
}
func (ps *PrintSettings) SetPaperHeight(width float64, unit Unit) {
	C.gtk_print_settings_set_paper_height(ps.native(), C.gdouble(width), C.GtkUnit(unit))
}
// SetPaperHeight() is a wrapper around gtk_print_settings_set_paper_height().