Call this function to initialize the rich edit control (version 1.0) for the application.
BOOL AFXAPI AfxInitRichEdit( );
This function is provided for backward compatibility. Applications created with Visual C++ .NET and later use AfxInitRichEdit2.
AfxInitRichEdit loads RICHED32.DLL to initialize version 1.0 of the rich edit control. To use version 2.0 and 3.0 of the rich edit control, RICHED20.DLL needs to be loaded. This is accomplished with a call to AfxInitRichEdit2. If you have dialog resources with the rich edit control created prior to Visual C++ .NET, the rich edit controls are automatically version 1.0. Rich edit controls inserted using the Visual C++ .NET Resource Editor are version 2.0.
To update rich edit controls in existing Visual C++ applications to version 2.0, open the .RC file as text, change the class name of each rich edit control from "RICHEDIT" to "RichEdit20a". Then replace the call to AfxInitRichEdit with AfxInitRichEdit2.
This function also initializes the common controls library, if the library hasn't already been initialized for the process. If you use the rich edit control directly from your MFC application, you should call this function to assure that MFC has properly initialized the rich edit control runtime. If you use rich edit through CRichEditCtrl, CRichEditView, or CRichEditDoc, you don't need to call this function.