Microsoft KB Archive/310221

Knowledge Base

How to use the Cdosys.dll library to embed a message in a new message by using Visual C#

Article ID: 310221

Article Last Modified on 12/3/2007

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APPLIES TO

• Microsoft Visual C# 2005
• Microsoft Visual C# .NET 2003 Standard Edition
• Microsoft Visual C# .NET 2002 Standard Edition
• Microsoft Collaboration Data Objects 2.0
• Microsoft ActiveX Data Objects 2.5
• Microsoft ActiveX Data Objects 2.6
• Microsoft ActiveX Data Objects 2.7
• Microsoft Internet Information Services 5.0
• Microsoft Internet Information Services 6.0

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This article was previously published under Q310221

INTRODUCTION

This article describes how to use the Microsoft Collaboration Data Objects (CDO) for Windows 2000 library (Cdosys.dll) to embed a message in a new message. You can do this by using Microsoft Visual C#.

Note The Cdosys.dll library is also known as CDOSYS.

MORE INFORMATION

To use CDOSYS to embed a message in a new message, follow these steps:

1. Start Microsoft Visual Studio .NET or Microsoft Visual Studio 2005.
2. On the File menu, click New, and then click Project.
3. Click Console Application in the Visual C# Projects types list.
   
   By default, Class1.cs is created.
   
   Note In Microsoft Visual C# 2005, you must click Console Application in the Visual C# list. By default, Program.cs is created.
4. Add a reference to the Microsoft CDO For Windows 2000 Library. To do this, follow these steps:
   1. On the Project menu, click Add Reference.
   2. On the COM tab, locate Microsoft CDO For Windows 2000 Library, and then click Select.
      
      Note In Microsoft Visual C# 2005, you do not have to click Select.
   3. In the Add References dialog box, click OK to accept your selections.
      
      If you receive a message to generate wrappers for the libraries that you select, click Yes.

5. In the Code window, replace all the code with the following code:

   namespace CdoSys
   {
       using System;
       class Class1
       {
           static void Main(string[] args)
           {
               try 
               {           
               CDO.DropDirectory iDropDir = new CDO.DropDirectory();
               CDO.IMessages iMsgs;
               CDO.IBodyPart iBp;
               CDO.IMessage iEmbdded;
               CDO.Message oMsg;
               CDO.IDataSource iDsrc;
   
               // Create a new message.
               oMsg = new CDO.Message();
               oMsg.From = "rhaddock@northwindtraders.com";
               oMsg.To = "rhaddock@northwindtraders.com";
               oMsg.Subject = "CDOSYS Send mail";
               oMsg.TextBody = "Hello";
               iBp = oMsg.BodyPart.AddBodyPart(-1);
   
               // Embed the message.
               iMsgs = iDropDir.GetMessages("C:\\Inetpub\\mailroot\\Drop");
               Console.WriteLine("Messages Count : " + iMsgs.Count.ToString());
   
               // Get first message.
               iEmbdded = iMsgs[1];
   
               // Embed the message in oMsg by using BodyPart.
               iDsrc = iEmbdded.DataSource;
               iDsrc.SaveToObject(iBp, "IBodyPart");
   
   
               // Send mail.
               oMsg.Send();
   
               iEmbdded = null;
               oMsg = null;
               iBp = null;
               iMsgs = null;
               iDropDir = null;
               }
               catch (Exception e)
               {
                   Console.WriteLine("{0} Exception caught.", e);
               }
               return;
           }
            }
   }

6. Press F5 to build and to run the program.

REFERENCES

For additional information about Microsoft Office development with Visual Studio, visit the following Microsoft Developer Network (MSDN) Web site:

http://msdn2.microsoft.com/en-us/library/aa188489(office.10).aspx

For additional information about how to use CDOSYS, click the following article numbers to view the articles in the Microsoft Knowledge Base:

310224 How to use the Cdosys.dll library to process mail in the Drop directory by using Visual C# .NET

310225 How to use the Cdosys.dll library to save a message to a file by using Visual C# .NET

310212 How to use the Cdosys.dll library to send an e-mail with attachments

Additional query words: embed message

Keywords: kbhowto kbcode KB310221

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