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Posted 11 Sep 2003

Add a WTL MDI window into an ATL Control

, 11 Sep 2003
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This article will show you how to make MDI window of WTL into ATL control by using a real world example.
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Sample Image - MdiControl.jpg

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The acticle will tell you how to easily add a WTL MDI window into an ATL Control.


I found that there are no articles about MDI in ActiveX using ATL/WTL. In VS.NET , I also could not find a Wizard for it, so I decided to share my idea about MDI in ActiveX  with you.

How to Do it

Step 1

Create ATL Control Project - MdiControl  and Create MdiEx Control

Step 2

Create WTL MDI Application - MdiControlMdiWnd

Step 3

Copy MdiControlMdiWnd res folder and the files what you want to  MdiControl folder

Step 4

Add MdiControlMdiWnd.rc and Resource.h of MdiControlMdiWnd into  the MdiControl folder

Step 5

Copy my classes Yf_Control.h, YF_Module.cpp and YF_Module.h into  MdiControl folder

Step 6

Open MdiControl project and add all of files that you copied into MdiControl folder

Step 7

Open stdafx.h and modify based on the following.

#include "resource.h"
#include <atlbase.h>
// if you use VC7
#include "YF_Module.h"


#include <atlcom.h>
#include <atlhost.h>
#include <atlwin.h>
#include <atlctl.h>
#include <atlapp.h>
#include <atlframe.h>
#include <atlctrls.h>
#include <atlctrlw.h>
#include <mshtml.h>
#include <exdisp.h>
#include <shlguid.h>

Step 8

Open MdiControl.cpp and modify based on the following.

class CMdiControlModule : public CAtlDllModuleT< CMdiControlModule >
public :
CMdiControlModule _AtlModule;


#define _AtlModule _Module

Step 9

Open MdiEx.h and modify based on the following.

#include "YF_Control.h"
class ATL_NO_VTABLE CMdiEx : 
 public IOleObjectImpl_YF<CMdiEx>,
 public CComControl_YF<CMdiEx>,
  m_bWindowOnly = TRUE;


 STDMETHOD(TranslateAccelerator)(LPMSG pMsg)

  return S_OK;

Step 10

Create MdiEx Event Interface

[id(1), helpstring("method OnClose")] HRESULT OnClose(void);

Step 11

Open MainFrm.h and modify based on the following in OnCreate Method.

 // register object for message filtering and idle updates
 //CMessageLoop* pLoop = _Module.GetMessageLoop();
 //ATLASSERT(pLoop != NULL);

Done! You had an ActiveX with MDI, that can be shown in IE.


This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here


About the Author

Zhang YanFeng
Web Developer
United States United States
No Biography provided

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Comments and Discussions

GeneralIt doesn't work in a MFC application based on dialog Pin
MasterFan31-May-04 21:50
memberMasterFan31-May-04 21:50 

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