How to add radio button into PDF document using ByteScout PDF SDK

The example demonstrates how to create radio buttons using ByteScout PDF SDK.

Program.vb:
VB

'*******************************************************************
'       ByteScout PDF SDK
'                                                                   
'       Copyright © 2016 Bytescout, https://bytescout.com        
'       ALL RIGHTS RESERVED                                         
'                                                                   
'*******************************************************************

Imports Bytescout.PDF

''' <summary>
''' This example demonstrates how to create radio buttons.
''' </summary>
Class Program

    Shared Sub Main()

        ' Create new document
        Dim pdfDocument = New Document()
        pdfDocument.RegistrationName = "demo"
		pdfDocument.RegistrationKey = "demo"
        ' Add page
        Dim page = New Page(PaperFormat.A4)
        pdfDocument.Pages.Add(page)

        Dim font = New Font(StandardFonts.Times, 12)
        Dim brush = New SolidBrush()

        ' Add a group of radio buttons
        Dim radioButton1 = New RadioButton(20, 20, 15, 15, "group1", "value1")
        Dim radioButton2 = New RadioButton(20, 40, 15, 15, "group1", "value2")
        page.Annotations.Add(radioButton1)
        page.Annotations.Add(radioButton2)
        ' Add labels
        page.Canvas.DrawString("Value 1.1", font, brush, 40, 20)
        page.Canvas.DrawString("Value 1.2", font, brush, 40, 40)

        ' Add another independent group of radio buttons
        Dim radioButton3 = New RadioButton(120, 20, 15, 15, "group2", "value3")
        Dim radioButton4 = New RadioButton(120, 40, 15, 15, "group2", "value4")
        page.Annotations.Add(radioButton3)
        page.Annotations.Add(radioButton4)
        ' Add labels
        page.Canvas.DrawString("Value 2.1", font, brush, 140, 20)
        page.Canvas.DrawString("Value 2.2", font, brush, 140, 40)

        ' Save document to file
        pdfDocument.Save("result.pdf")

        ' Cleanup 
		pdfDocument.Dispose()

        ' Open document in default PDF viewer app
        Process.Start("result.pdf")

    End Sub

End Class 

Program.cs:
C#

//*******************************************************************
//       ByteScout PDF SDK		                                     
//                                                                   
//       Copyright © 2016 ByteScout - https://bytescout.com       
//       ALL RIGHTS RESERVED                                         
//                                                                   
//*******************************************************************

using System.Diagnostics;
using Bytescout.PDF;

namespace RadioButtons
{
	/// <summary>
	/// This example demonstrates how to create radio buttons.
	/// </summary>
	class Program
	{
		static void Main()
		{
			// Create new document
			Document pdfDocument = new Document();
			pdfDocument.RegistrationName = "demo";
			pdfDocument.RegistrationKey = "demo";
			// Add page
			Page page = new Page(PaperFormat.A4);
			pdfDocument.Pages.Add(page);

			Font font = new Font(StandardFonts.Times, 12);
			SolidBrush brush = new SolidBrush();

			// Add a group of radio buttons
			RadioButton radioButton1 = new RadioButton(20, 20, 15, 15, "group1", "value1");
			RadioButton radioButton2 = new RadioButton(20, 40, 15, 15, "group1", "value2");
			page.Annotations.Add(radioButton1);
			page.Annotations.Add(radioButton2);
			// Add labels
			page.Canvas.DrawString("Value 1.1", font, brush, 40, 20);
			page.Canvas.DrawString("Value 1.2", font, brush, 40, 40);

			// Add another independent group of radio buttons
			RadioButton radioButton3 = new RadioButton(120, 20, 15, 15, "group2", "value3");
			RadioButton radioButton4 = new RadioButton(120, 40, 15, 15, "group2", "value4");
			page.Annotations.Add(radioButton3);
			page.Annotations.Add(radioButton4);
			// Add labels
			page.Canvas.DrawString("Value 2.1", font, brush, 140, 20);
			page.Canvas.DrawString("Value 2.2", font, brush, 140, 40);

			// Save document to file
			pdfDocument.Save("result.pdf");

			// Cleanup 
			pdfDocument.Dispose();

			// Open document in default PDF viewer app
			Process.Start("result.pdf");
		}
	}
}