윈도우 컨트롤 화면 깜빡임 해결 방법

int CSearchUserListCtrl::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    if (CSortListCtrl::OnCreate(lpCreateStruct) == -1)
        return -1;

    // 배경 브러시를 생성한다.
    m_brushBackground.CreateSolidBrush(GetBkColor());

    return 0;
}

BOOL CSearchUserListCtrl::OnEraseBkgnd(CDC* pDC)
{
    return TRUE;
}

void CSearchUserListCtrl::OnPaint()
{
    CPaintDC dc(this); // device context for painting

    CMemoryDC memDC(&dc, &m_rtClientArea);
    memDC->FillRect(&m_rtClientArea, &m_brushBackground);
    CSortListCtrl::DefWindowProc(WM_PAINT, (WPARAM)memDC.m_hDC, 0);
}

void CSearchUserListCtrl::OnSize(UINT nType, int cx, int cy)
{
    CSortListCtrl::OnSize(nType, cx, cy);

    // 리스트 컨트롤의 영역 정보를 구한다.
    GetClientRect(&m_rtClientArea);
}