typedef struct _charformat2w
{
    UINT        cbSize;
    DWORD        dwMask;
    DWORD        dwEffects;
    LONG        yHeight;
    LONG        yOffset;            // > 0 for superscript, < 0 for subscript 
    COLORREF    crTextColor;
    BYTE        bCharSet;
    BYTE        bPitchAndFamily;
    WCHAR        szFaceName[LF_FACESIZE];
    WORD        wWeight;            // Font weight (LOGFONT value)        
    SHORT        sSpacing;            // Amount to space between letters    
    COLORREF    crBackColor;        // Background color                 
    LCID        lcid;                // Locale ID                        
#if (_RICHEDIT_VER >= 0x0500)
    union
    {
        DWORD        dwReserved;            // Name up to 5.0
        DWORD        dwCookie;             // Client cookie opaque to RichEdit
    };
#else
    DWORD        dwReserved;            // Name up to 5.0
#endif
    SHORT        sStyle;             // Style handle                     
    WORD        wKerning;            // Twip size above which to kern char pair
    BYTE        bUnderlineType;     // Underline type                    
    BYTE        bAnimation;         // Animated text like marching ants 
    BYTE        bRevAuthor;         // Revision author index            
#if (_RICHEDIT_VER >= 0x0800)
    BYTE        bUnderlineColor;    // Underline color
#endif
} CHARFORMAT2W;

RTFCtrl.SetEventMask(lEvMask | EN_MSGFILTER | ENM_SELCHANGE | ENM_KEYEVENTS);

K>RTFCtrl.SetEventMask(lEvMask | EN_MSGFILTER | ENM_SELCHANGE | ENM_KEYEVENTS);
K>

void CSpellRichEdit::ColorRange2(const int nMin //стартовый символ проверки
                                 , const int nMax//конец проверки
                                 , const HWND hwnd //HWND ричэдита
)
{
    ASSERT(IsWindow(hwnd));

    CComPtr<ITextRange> Range;
    {
    CHARRANGE cr;
    cr.cpMin=nMin;
    cr.cpMax=nMax;

//получаем диапазон проверки
    Range=(CTomUtil::GetITextRange(hwnd,cr));
    
    ASSERT(Range);
    if (!Range)
        return;

//выровняли диапазон по слову,
    NormalizeWordEnd(Range);

#ifdef _DEBUG
    long lTemp1, lTemp2;
    ASSERT(S_OK == Range->GetEnd(&lTemp2));
    ASSERT(S_OK == Range->GetStart(&lTemp1));
    ASSERT(lTemp2 > lTemp1);
#endif
    }

        //поехали черкать подчеркивание
    long x1, y1;
    if (S_OK != Range->GetPoint(tomStart|TA_BOTTOM|TA_LEFT,&x1,&y1))
        return;
    
    long x2, y2;
    if (S_OK != Range->GetPoint(tomEnd|TA_BOTTOM|TA_RIGHT,&x2,&y2))
        return;
    
    const HDC hdc=GetWindowDC(hwnd);
    ASSERT(hdc);
    if (!hdc)
        return;

    ASSERT(GetRedPen());
    const HPEN hOldPen=(HPEN)::SelectObject(hdc,GetRedPen());

    CPoint pt1(x1,y1);
    ScreenToClient(hwnd,&pt1);
    x1=pt1.x; y1=pt1.y;

    CPoint pt2(x2,y2);
    ScreenToClient(hwnd,&pt2);
    x2=pt2.x; y2=pt2.y;

    y1++; y2++;

    const int nWidth=x2 - x1;
    if (nWidth <= 0)
        return;
    
    enum {DELTA=2};
    const int nPointCount=nWidth/DELTA + 1;
    ASSERT(nPointCount > 0);
    
    {
    POINT* const pArray=new POINT[nPointCount];
    ASSERT(!IsBadWritePtr(pArray,  sizeof(POINT)*nPointCount));
    memset(pArray,0, sizeof(POINT)*nPointCount);

    for (int i=0; i<nPointCount; i++ )    {
        POINT& pt=*(pArray+i);
        pt.x=x1 + DELTA*i;
        const int DELTA_Y= i % 2 ? 1 : -1;
        pt.y=y1+DELTA_Y;
    }
    const BOOL b=Polyline(hdc, pArray,nPointCount);
    delete[] pArray;
    }

    SelectObject(hdc,hOldPen);
    ReleaseDC(hwnd,hdc);
}