gtk/print.go
func (po *PrintOperation) GetDefaultPageSetup() (*PageSetup, error) {
	c := C.gtk_print_operation_get_default_page_setup(po.native())
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	return wrapPageSetup(obj), nil
}
func (po *PrintOperation) GetDefaultPageSetup() (*PageSetup, error) {
	c := C.gtk_print_operation_get_default_page_setup(po.native())
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	return wrapPageSetup(obj), nil
}
// GetDefaultPageSetup() is a wrapper around gtk_print_operation_get_default_page_setup().