private void buttonPreview_Click(object sender, EventArgs e) { try { ILabelPreview labelPreview = new LabelPreview(); var stream = labelPreview.GetLabel("http://api.labelary.com/v1/printers", new PrintSetting(), editMemoZplCode.Text); var image = Bitmap.FromStream(stream); pictureBoxPreview.Image = image; } catch (Exception ex) { MessageBox(ex.Message); } }