listctrl显示颜色问题

Question

sorry,是DrawItem,
注意重载完要改一下形式virtual void DrawItem( LPDRAWITEMSTRUCT lpDrawItemStruct );

Answer 1

Create()是指定：LVS_SHOWSELALWAYS style

Answer 2

ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomDraw)void CListCtrlEx::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult) 
{
  NMLVCUSTOMDRAW *pCD = (NMLVCUSTOMDRAW*)pNMHDR;
  switch (pCD->nmcd.dwDrawStage)
  {
     case  CDDS_PREPAINT:
         *pResult = CDRF_NOTIFYITEMDRAW;
         break;
     case CDDS_ITEMPREPAINT | CDDS_SUBITEM:
         *pResult = CDRF_NOTIFYSUBITEMDRAW | CDRF_NOTIFYPOSTPAINT;
         break;
     case CDDS_ITEMPOSTPAINT | CDDS_SUBITEM:
         {
             CDC* pDC = CDC::FromHandle(pCD->nmcd.hdc);
             .....
             .....
             break;
          }
     default:
           if (!(pCD->nmcd.uItemState & CDIS_FOCUS))
                *pResult = CDRF_DODEFAULT;
           else
                *pResult = CDRF_NOTIFYSUBITEMDRAW;
           break;
       }
}

Answer 3

BEGIN_MESSAGE_MAP(CCheckNetWorkDlg, CDialog)
//{{AFX_MSG_MAP(CCheckNetWorkDlg)
.....
//}}AFX_MSG_MAP
.....
ON_NOTIFY(NM_CUSTOMDRAW, IDC_REPORT, OnCustomdrawList)  //定义消息
END_MESSAGE_MAP()void CCheckNetWorkDlg::OnCustomdrawList ( NMHDR* pNMHDR, LRESULT* pResult )
{
NMLVCUSTOMDRAW* pLVCD = reinterpret_cast<NMLVCUSTOMDRAW*>( pNMHDR );    // Take the default processing unless we set this to something else below.
    *pResult = 0;    // First thing - check the draw stage. If it's the control's prepaint
    // stage, then tell Windows we want messages for every item.
    if ( CDDS_PREPAINT == pLVCD->nmcd.dwDrawStage )
        {
        *pResult = CDRF_NOTIFYITEMDRAW;
        }
    else if ( CDDS_ITEMPREPAINT == pLVCD->nmcd.dwDrawStage )
        {
        // This is the prepaint stage for an item. Here's where we set the
        // item's text color. Our return value will tell Windows to draw the
        // item itself, but it will use the new color we set here.
        // We'll cycle the colors through red, green, and light blue.
        COLORREF crText;
// crText = RGB(0,0,0);
        if (m_bHost[pLVCD->nmcd.dwItemSpec])   //指定要改变颜色的Item
            crText = RGB(255,255,255);
else
crText = RGB(255,0,0);        // Store the color back in the NMLVCUSTOMDRAW struct.
//        pLVCD->clrText = crText;
pLVCD->clrTextBk=crText;        // Tell Windows to paint the control itself.
        *pResult = CDRF_DODEFAULT;
        }
}