Re: CListCtrl in report mode and column header

From:

mosfet <richom.v@free.fr>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 15 Feb 2007 16:18:44 +0100

Message-ID:

<45d479d4$0$17201$426a34cc@news.free.fr>

mosfet a ?crit :

Hi,

I would like to have a CListCtrl in report mode with columnheader but
I would like the column header to be transparent and without
displaying separators.
How can I do that ?

Or same question : HOW CAN I CHANGE COLUMN HEADER COLOR ?

Ok I found it :

//---------------------------------------------------------------------------//
// class CHeaderCtrlEx
//---------------------------------------------------------------------------//
CHeaderCtrlEx::CHeaderCtrlEx()
{

}

CHeaderCtrlEx::~CHeaderCtrlEx()
{

}

BEGIN_MESSAGE_MAP(CHeaderCtrlEx, CHeaderCtrl)
    //{{AFX_MSG_MAP(CColorHeaderCtrl)
    ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomDraw)
    ON_WM_ERASEBKGND()
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()

//---------------------------------------------------------------------------
//
// CHeaderCtrlEx message handlers
//
//---------------------------------------------------------------------------

// CHeaderCtrlEx::OnCustomDraw
//
// Handles custom draw
//
void CHeaderCtrlEx::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)
{
    NMCUSTOMDRAW* pCD = (NMCUSTOMDRAW*)pNMHDR;
    DWORD dwDrawStage,
                    dwItemSpec;

    *pResult = CDRF_DODEFAULT;

    dwDrawStage = pCD->dwDrawStage;
    dwItemSpec = pCD->dwItemSpec;

    if(dwDrawStage == CDDS_PREPAINT)
    {
        *pResult = CDRF_NOTIFYITEMDRAW;
    }
    else if(dwDrawStage == CDDS_ITEMPREPAINT)
    {
        HDC hDC = pCD->hdc;

        SetTextColor(hDC, RGB(255, 255, 255));

        if(dwItemSpec)
            SetBkColor(hDC, RGB( 0, 0, 255)); // Blue
        else
            SetBkColor(hDC, RGB( 255, 0, 0)); // Red

        *pResult = CDRF_NEWFONT;
    }
}

// CColorHeaderCtrl::OnEraseBkgnd
//
// This is where we specify the background color of the header
//
BOOL CHeaderCtrlEx::OnEraseBkgnd(CDC* pDC)
{
    CRect rc;

    GetClientRect(&rc);

    pDC->FillSolidRect(&rc, RGB(255, 255, 0)); // Yellow
    return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
//BOOL CHeaderCtrlEx::Init(CHeaderCtrl *pHeader)
//{
// ASSERT(pHeader && pHeader->GetSafeHwnd());
// if (!SubclassWindow(pHeader->GetSafeHwnd()))
// {
// OutputDebugString(_T("Unable to subclass existing header!\n"));
// return FALSE;
// }
//
// return TRUE;
//}

//---------------------------------------------------------------------------//
// class CHistoryListCtrl
//---------------------------------------------------------------------------//
IMPLEMENT_DYNAMIC(CHistoryListCtrl, CListCtrl)
CHistoryListCtrl::CHistoryListCtrl()
{
}

CHistoryListCtrl::~CHistoryListCtrl()
{
}

BEGIN_MESSAGE_MAP(CHistoryListCtrl, CListCtrl)
    ON_WM_CREATE()
END_MESSAGE_MAP()

int CHistoryListCtrl::SubclassHeader()
{
    CHeaderCtrl* pHeader;
    int nRval = 0;

    pHeader = GetHeaderCtrl();
    if(pHeader && pHeader->GetSafeHwnd()){
        if(!m_hdr.SubclassWindow(pHeader->GetSafeHwnd()))
            nRval = -1;
    }

    return nRval;
}

void CHistoryListCtrl::PreSubclassWindow()
{
    // Use REPORT mode
    ModifyStyle(0, LVS_REPORT);

    //-- Subclassing header with our custom --//
    SubclassHeader();

    CListCtrl::PreSubclassWindow();
}

//---------------------------------------------------------------------------
//
// CHistoryListCtrl message handlers
//
//---------------------------------------------------------------------------
int CHistoryListCtrl::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    if(CListCtrl::OnCreate(lpCreateStruct) == -1)
        return -1;

    //-- Subclassing header with our custom --//
    return SubclassHeader();
}