Rich Edit Control initialization

If you are using a rich edit control in a dialog box (regardless of whether your application is SDI, MDI, or dialog-based), you must callAfxInitRichEdit once before the dialog box is displayed. A typical place to call this function is in your program's InitInstance member function. You do not need to call it for each time you display the dialog box, only the first time. You do not have to call AfxInitRichEdit if you are working with CRichEditView.

AfxInitRichEdit2 for RichEditCtrl2.0

Call this function to load the RICHED20.DLL and initialize version 2.0 of the rich edit control. If you call the Create method of CRichEditCtrl,CRichEditView, or CRichEditDoc, you typically don't need to call this function, but in some cases it might be necessary.