C#操作word文档和转换成图片

1、 word文档操作

下面功能实现都是用com组件完成。添加引用 MSWord = Microsoft.Office.Interop.Word;

Winfrom操作界面

（1）获取word文档的总页数

  private Word.Document _wordDocument;
  int pageNumber  = 0;
  Word.WdStatistic stat = Word.WdStatistic.wdStatisticPages;
  pageNumber   = _wordDocument.ComputeStatistics(stat, ref missing);

（2）定义页面跳转方法

/// <summary>
/// 跳转到指定页
/// </summary>
/// <param name="_wordDocument"></param>
/// <param name="n"></param>
public void GoToPage(Word.Document _wordDocument,string n)
{
object What = Word.WdGoToItem.wdGoToPage;
object Which = Word.WdGoToDirection.wdGoToNext;
object Name = n;
_wordDocument.ActiveWindow.Selection.GoTo(ref What, ref Which, ref missing, ref Name); 
_wordDocument.ActiveWindow.Selection.Paragraphs[1].Range.Text.ToString();
}

（3）上页、下页、首页、尾页跳转

定义全局变量currentPage，记录当前显示的页面

   /// <summary>
        /// 上一页
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Preview_Click(object sender, EventArgs e)
        {
            if (currentPage-- > 1)
            {
                wordDocemrent.GoToPage(wordDocemrent.WordDocument, currentPage.ToString());
            }            
        }
        /// <summary>
        /// 下一页
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Nextview_Click(object sender, EventArgs e)
        {
            if (currentPage++ < pageNumber)
            {
                wordDocemrent.GoToPage(wordDocemrent.WordDocument, currentPage.ToString());
            }            
        }
        /// <summary>
        /// 第一页
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void FristPage_Click(object sender, EventArgs e)
        {
            wordDocemrent.GoToPage(wordDocemrent.WordDocument, "1");
            currentPage = 1;
        }
        /// <summary>
        /// 末页
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void EndPage_Click(object sender, EventArgs e)
        {
            wordDocemrent.GoToPage(wordDocemrent.WordDocument, pageNumber.ToString());
            currentPage = pageNumber;
        }

（4）word滚动

从textbox空间传入值，可操作word文档光标位置，模拟鼠标滚动条

        /// <summary>
        /// 光标上移     
        /// </summary>
        public int MoveUp(object unit, object count, object extend)
        {
            return _wordApplication.Selection.MoveUp(ref unit, ref         count, ref extend);
        }

        /// <summary>
        /// 光标下移 
        /// </summary>
        public int MoveDown(object unit, object count, object extend)
        {
            return _wordApplication.Selection.MoveDown(ref unit, ref count, ref extend);
        }

（5）word 转换成图片

  private Bitmap[] WordtoImage(string filePath)
        {
            string tmpPath = AppDomain.CurrentDomain.BaseDirectory + "\\" + Path.GetFileName(filePath) + ".tmp";
            File.Copy(filePath, tmpFilePath);

            List<Bitmap> imageLst= new List<Bitmap>();
            MSWord.Application wordApplicationClass = new MSWord.Application();
            wordApplicationClass.Visible = false;
            object missing = System.Reflection.Missing.Value;

            try
            {object filePathObject = tmpPath;

                MSWord.Document document = wordApplicationClass.Documents.Open(ref filePathObject, ref missing,
                    false, ref missing, ref missing, ref missing,
                    ref missing, ref missing, ref missing, ref missing,
                    ref missing, ref missing, ref missing, ref missing,
                    ref missing, ref missing);

                bool finished = false;
                while (!finished)
                {
                    document.Content.CopyAsPicture(); 
                    System.Windows.Forms.IDataObject data = Clipboard.GetDataObject();
                    if (data.GetDataPresent(DataFormats.MetafilePict))
                    {
                        object obj = data.GetData(DataFormats.MetafilePict);
                        Metafile metafile = MetafileHelper.GetEnhMetafileOnClipboard(IntPtr.Zero); 
                        Bitmap bm = new Bitmap(metafile.Width, metafile.Height);
                        using (Graphics g = Graphics.FromImage(bm))
                        {
                            g.Clear(Color.White);
                            g.DrawImage(metafile, 0, 0, bm.Width, bm.Height);
                        }
                        imageLst.Add(bm);
                        Clipboard.Clear();
                    }

                    object Next= MSWord.WdGoToItem.wdGoToPage;
                    object First= MSWord.WdGoToDirection.wdGoToFirst;
                    object startIndex = "1";
                    document.ActiveWindow.Selection.GoTo(ref Next, ref First, ref missing, ref startIndex); 
                    MSWord.Range start = document.ActiveWindow.Selection.Paragraphs[1].Range;
                    MSWord.Range end = start.GoToNext(MSWord.WdGoToItem.wdGoToPage);
                    finished = (start.Start == end.Start);
                    if (finished)
                    {
                        end.Start = document.Content.End;
                    }

                    object oStart = start.Start;
                    object oEnd = end.Start;
                    document.Range(ref oStart, ref oEnd).Delete(ref missing, ref missing); 
                }

                ((MSWord._Document)document).Close(ref missing, ref missing, ref missing);
                System.Runtime.InteropServices.Marshal.ReleaseComObject(document);

                return imageLst.ToArray();
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                wordApplicationClass.Quit(ref missing, ref missing, ref missing);
                System.Runtime.InteropServices.Marshal.ReleaseComObject(wordApplicationClass);
                File.Delete(tmpFilePath); 
            }
        }

false

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C#操作word文档和转换成图片

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