gtk/print_since_3_16.go
func PaperSizeNewFromIPP(name string, width, height float64) (*PaperSize, error) {
	cstr := C.CString(name)
	defer C.free(unsafe.Pointer(cstr))

	c := C.gtk_paper_size_new_from_ipp((*C.gchar)(cstr), C.gdouble(width), C.gdouble(height))
	if c == nil {
		return nil, nilPtrErr
	}

	t := &PaperSize{c}
	runtime.SetFinalizer(t, (*PaperSize).free)
	return t, nil
}
func PaperSizeNewFromIPP(name string, width, height float64) (*PaperSize, error) {
	cstr := C.CString(name)
	defer C.free(unsafe.Pointer(cstr))

	c := C.gtk_paper_size_new_from_ipp((*C.gchar)(cstr), C.gdouble(width), C.gdouble(height))
	if c == nil {
		return nil, nilPtrErr
	}

	t := &PaperSize{c}
	runtime.SetFinalizer(t, (*PaperSize).free)
	return t, nil
}
// PaperSizeNewFromIpp is a wrapper around gtk_paper_size_new_from_ipp().