How to Use RichEditControl 4.1 in CRichEditView

By Flaviu Marc (mesajflaviu)

Introduction

The last available version of Windows RichEdit control is 4.1. However, the MFC framework still uses older versions of this control. For example, MFC 6.0 uses RichEdit control 1, which is very obsolete and even newer MFC versions that shipped with Visual Studio 2005-2010 use RichEdit control 2 or 3.

How to Overcome This?

In order to use RichEdit control 4.1 in CRichEditView MFC class, and enjoy its new features, we can do the following steps:

Step 1

In the MFC application class (derived from CWinApp) load the MSFTEDIT.DLL library module, which contains RichEdit control 4.1.

BOOL CRichEdit41App::InitInstance()
{
   // Load RichEdit 4.1 library 
   HMODULE hRE41Module = ::LoadLibrary(_T("MSFTEDIT.DLL"));
   if(NULL == hRE41Module)
   {
      AfxMessageBox(_T("RichEdit 4.1 library could not be loaded"));
      return FALSE;
   }
   // ...
}

Step 2

In the MFC view class (derived from CRichEditView) constructor, set the window class name for RichEdit 4.1, which is "RICHEDIT50W".

// Note: MSFTEDIT_CLASS is not defined in MFC6.0 and older
#ifndef MSFTEDIT_CLASS
#define MSFTEDIT_CLASS L"RICHEDIT50W";
#endif

CRichEdit41View::CRichEdit41View()
{
   m_strClass = MSFTEDIT_CLASS;
}

Step 3

In the WM_DESTROY message handler, move below the base class method call.
Note: this step is necessary in MFC6.0 and older.

void CRichEdit41View::OnDestroy()
{
   // CRichEditView::OnDestroy(); // <-- move this line below
   COleClientItem* pActiveItem = GetDocument()->GetInPlaceActiveItem(this);
   if (pActiveItem != NULL && pActiveItem->GetActiveView() == this)
   {
      pActiveItem->Deactivate();
      ASSERT(GetDocument()->GetInPlaceActiveItem(this) == NULL);
   }
   CRichEditView::OnDestroy(); // <-- moved from above
}

Demo Application

The project attached here demonstrates how to load RichEdit 4.1 in a simple MFC-based application, and then enjoy its features like multiple Undo/Redo.

Resources



Related Articles

Downloads

Comments

  • Good Article

    Posted by Tirumalarao on 04/30/2012 02:28am

    Can plz brief the code.....

    • Thank you ...

      Posted by mesajflaviu on 05/06/2012 10:45pm

      What kind of code do you need ? You have a demo project where you find the exemplified code ....

      Reply
    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Lenovo recommends Windows 8 Pro. "I dropped my laptop getting out of the taxi." This probably sounds familiar to most IT professionals. If your employees are traveling, you know their devices are in for a rough go. Whether it's a trip to the conference room or a convention out of town, any time equipment leaves a user's desk it is at risk of being put into harm's way. Stay connected at all times, whether at the office or on the go, with agile, durable, and flexible devices like the Lenovo® …

  • Live Event Date: September 23, 2015 @ 1:00 p.m. ET / 10:00 a.m. PT The cloud is not just about a runtime platform for your projects – now, you can do your development in the cloud, too. Check out this upcoming eseminar to learn how the cloud improves your development experience and team collaboration. Join Dana Singleterry, Principal Product Manager for Oracle Dev Tools, as he discusses how to simplify every aspect of the development lifecycle, including requirements gathering, version management, code …

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date