core/Test/Applications/Base64/Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using Microsoft.Office.Interop.Word;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            /*
            object paramSourceDocPath = @"C:\Users\Oleg.Korshul\Downloads\eu.docx";
            string paramExportFilePath = @"C:\DEST\Test.pdf";
            WdExportFormat paramExportFormat = WdExportFormat.wdExportFormatPDF;
            bool paramOpenAfterExport = false;
            WdExportOptimizeFor paramExportOptimizeFor =
                WdExportOptimizeFor.wdExportOptimizeForOnScreen;
            WdExportRange paramExportRange = WdExportRange.wdExportAllDocument;
            int paramStartPage = 0;
            int paramEndPage = 0;
            WdExportItem paramExportItem = WdExportItem.wdExportDocumentWithMarkup;
            bool paramIncludeDocProps = true;
            bool paramKeepIRM = true;
            WdExportCreateBookmarks paramCreateBookmarks =
                WdExportCreateBookmarks.wdExportCreateWordBookmarks;
            bool paramDocStructureTags = true;
            bool paramBitmapMissingFonts = true;
            bool paramUseISO19005_1 = false;
            object paramMissing = Type.Missing;

            ApplicationClass wordApplication = new ApplicationClass();
            Document wordDocument = null;

            try
            {
                // Open the source document.
                wordDocument = wordApplication.Documents.Open(
                    ref paramSourceDocPath, ref paramMissing, ref paramMissing,
                    ref paramMissing, ref paramMissing, ref paramMissing,
                    ref paramMissing, ref paramMissing, ref paramMissing,
                    ref paramMissing, ref paramMissing, ref paramMissing,
                    ref paramMissing, ref paramMissing, ref paramMissing,
                    ref paramMissing);

                // Export it in the specified format.
                if (wordDocument != null)
                    wordDocument.ExportAsFixedFormat(paramExportFilePath,
                        paramExportFormat, paramOpenAfterExport,
                        paramExportOptimizeFor, paramExportRange, paramStartPage,
                        paramEndPage, paramExportItem, paramIncludeDocProps,
                        paramKeepIRM, paramCreateBookmarks, paramDocStructureTags,
                        paramBitmapMissingFonts, paramUseISO19005_1,
                        ref paramMissing);
            }
            catch (Exception ex)
            {
                // Respond to the error
            }
            finally
            {
                // Close and release the Document object.
                if (wordDocument != null)
                {
                    wordDocument.Close(ref paramMissing, ref paramMissing,
                        ref paramMissing);
                    wordDocument = null;
                }

                // Quit Word and release the ApplicationClass object.
                if (wordApplication != null)
                {
                    wordApplication.Quit(ref paramMissing, ref paramMissing,
                        ref paramMissing);
                    wordApplication = null;
                }

                GC.Collect();
                GC.WaitForPendingFinalizers();
                GC.Collect();
                GC.WaitForPendingFinalizers();
            }
            */
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (openFileDialog1.ShowDialog() != DialogResult.OK)
                return;

            textBox1.Text = openFileDialog1.FileName;

            using (FileStream fsSource = new FileStream(textBox1.Text, FileMode.Open, FileAccess.Read))
            {
                // Read the source file into a byte array.
                byte[] bytes = new byte[fsSource.Length];
                int numBytesToRead = (int)fsSource.Length;
                int numBytesRead = 0;
                while (numBytesToRead > 0)
                {
                    // Read may return anything from 0 to numBytesToRead.
                    int n = fsSource.Read(bytes, numBytesRead, numBytesToRead);

                    // Break when the end of the file is reached.
                    if (n == 0)
                        break;

                    numBytesRead += n;
                    numBytesToRead -= n;
                }
                numBytesToRead = bytes.Length;

                textBox2.Text = Convert.ToBase64String(bytes, Base64FormattingOptions.None);
            }            
        }
    }
}