GÓRA 
 CString str = pDoc->strData1;
 int i = 0;
 CStringArray items;
 for (CString sItem = str.Tokenize(_T("\n"), i); i >= 0; sItem = str.Tokenize(_T("\n"), i)) {
  items.Add(sItem);
 }

 for (int i = 0; i < items.GetSize(); i++) {
  pDC->TextOutW(30, 30 + (i * 15), items.GetAt(i));
 }
 
DÓŁ

 CMDIDoc* pDoc = GetDocument();

 if (nChar == 13) {
  pDoc->strData1 += "\n";
 }
 else if (nChar == '\b') pDoc->strData1.Delete(pDoc->strData1.GetLength() - 1);
 else pDoc->strData1 += (char)nChar;

 Invalidate();

 pDoc->SetModifiedFlag();