获取打开的Word文档

 　　　　　using Word = Microsoft.Office.Interop.Word;
　　　　　　 int _getApplicationErrorCount=0;
　　　　　　 bool _isMsOffice = true;

　　　　　　 /// <summary>
         /// 获取最后一个当前处于活动状态的Word进程
         /// </summary>
         /// <param name="isLog">是否将检测到Office版本号写进日志，可根据项目需要删除该功能</param>
         /// <returns></returns>
         public static Word.Application GetWordApplication(bool isLog)
         {
             try
             {
                 Word.Application wdApp = null;
                 bool log = isLog;
                 Thread.Sleep();
                 if (Process.GetProcessesByName("WINWORD").ToList().Count > )
                 {
                     _isMsOffice = true;
                     wdApp = (Word.Application)System.Runtime.InteropServices.Marshal.GetActiveObject("Word.Application");
                     _getApplicationErrorCount = ;
                     if (log)
                         Trace.WriteLine("检测到使用的MS Office " + wdApp.Version);
                 }
                 else if (Process.GetProcessesByName("wps").ToList().Count > )
                 {
                     _isMsOffice = false;
                     if (Type.GetTypeFromProgID("Kwps.Application") != null)
                     {
                         wdApp = (Word.Application)System.Runtime.InteropServices.Marshal.GetActiveObject("Kwps.Application");
                         _getApplicationErrorCount = ;
                         if (log)
                             Trace.WriteLine("检测到使用的WPS Office " + wdApp.Version + ";VBA V9");
                     }
                     else if (Type.GetTypeFromProgID("wps.Application") != null)
                     {
                         wdApp = (Word.Application)System.Runtime.InteropServices.Marshal.GetActiveObject("Wps.Application");
                         _getApplicationErrorCount = ;
                         if (log)
                             Trace.WriteLine("检测到使用的WPS Office " + wdApp.Version + ";VBA V8");
                     }
                     else
                     {
                         MessageBox.Show("当前WPS 不支持VBA");
                     }
                 }
                 else
                 {
                     wdApp = null;
                 }
                 return wdApp;
             }
             catch (Exception ex)
             {
                 _getApplicationErrorCount++;
                 if (_getApplicationErrorCount <= ) //检测失败重试5次
                 {
                     Thread.Sleep();
                     return GetWordApplication(false);
                 }
                 else
                 {
                     Trace.WriteLine("Get word application failed!" + ex.Message + ex.StackTrace);
                     _getApplicationErrorCount = ;
                     return null;
                 }
             }
         }

注：

　　调用是可使用Word.Application wdApp = GetWordApplication(true);

　　获取该进程中的所有文档可用：Word.Documents docs = wdApp.Documents;

　　转载请注明出处，谢谢！