前言

这三个例子都是通过注册事件来完成相应的工作，内容比较简单。

内容

事件参考博客：Revit API：Events 事件总览

AutoStamp 自动水印

使用到的事件：

application.ControlledApplication.ViewPrinting
application.ControlledApplication.ViewPrinted

注册事件：

public class Application : IExternalApplication{
   EventsReactor m_eventsReactor;
   public Autodesk.Revit.UI.Result OnStartup(UIControlledApplication application){
      // Register related events
      m_eventsReactor = new EventsReactor();
      application.ControlledApplication.ViewPrinting += new EventHandler<Autodesk.Revit.DB.Events.ViewPrintingEventArgs>(m_eventsReactor.AppViewPrinting);
      application.ControlledApplication.ViewPrinted += new EventHandler<Autodesk.Revit.DB.Events.ViewPrintedEventArgs>(m_eventsReactor.AppViewPrinted);
      return Autodesk.Revit.UI.Result.Succeeded;
   }

   public Autodesk.Revit.UI.Result OnShutdown(UIControlledApplication application){
   application.ControlledApplication.ViewPrinting -= new EventHandler<Autodesk.Revit.DB.Events.ViewPrintingEventArgs>(m_eventsReactor.AppViewPrinting);
   application.ControlledApplication.ViewPrinted -= new EventHandler<Autodesk.Revit.DB.Events.ViewPrintedEventArgs>(m_eventsReactor.AppViewPrinted);
   return Autodesk.Revit.UI.Result.Succeeded;
   }
}

事件处理：

// AppViewPrinting
TextNoteOptions options = new TextNoteOptions();
options.HorizontalAlignment = HorizontalTextAlignment.Center;
options.TypeId = e.Document.GetDefaultElementTypeId(ElementTypeGroup.TextNoteType);
TextNote newTextNote = TextNote.Create(e.Document, e.View.Id, XYZ.Zero, strText, options);

// AppViewPrinted
e.Document.Delete(m_newTextNoteId);

AutoUpdate 自动更新

这个例子仅仅是更新了地址信息：

1. 注册文件打开完成事件
   application.ControlledApplication.DocumentOpened
2. 事件处理函数
   在文件上加入地址信息
   doc.ProjectInformation.Address = “United States - Massachusetts - Waltham - 610 Lincoln St”;

CancelSave

这个例子也注册了一系列事件，但作用和题目出入太大，这个例子应该从 SDK Sample 中删除。