Article ID: 310221 - Last Review: December 3, 2007 - Revision: 3.6

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

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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.
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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.
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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 (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  (http://support.microsoft.com/kb/310224/ ) How to use the Cdosys.dll library to process mail in the Drop directory by using Visual C# .NET
310225  (http://support.microsoft.com/kb/310225/ ) How to use the Cdosys.dll library to save a message to a file by using Visual C# .NET
310212  (http://support.microsoft.com/kb/310212/ ) How to use the Cdosys.dll library to send an e-mail with attachments
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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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Keywords: 
kbcode kbhowto KB310221
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