gtk/print.go
func (ps *PrintSettings) GetBool(key string) bool {
	cstr := C.CString(key)
	defer C.free(unsafe.Pointer(cstr))
	c := C.gtk_print_settings_get_bool(ps.native(), (*C.gchar)(cstr))
	return gobool(c)
}
func (ps *PrintSettings) GetBool(key string) bool {
	cstr := C.CString(key)
	defer C.free(unsafe.Pointer(cstr))
	c := C.gtk_print_settings_get_bool(ps.native(), (*C.gchar)(cstr))
	return gobool(c)
}
// GetBool() is a wrapper around gtk_print_settings_get_bool().