gtk/print.go
func (ps *PrintSettings) GetDefaultSource() string {
	c := C.gtk_print_settings_get_default_source(ps.native())
	return C.GoString((*C.char)(c))
}
func (ps *PrintSettings) GetDefaultSource() string {
	c := C.gtk_print_settings_get_default_source(ps.native())
	return C.GoString((*C.char)(c))
}
// GetDefaultSource() is a wrapper around gtk_print_settings_get_default_source().