整了好久了 快疯了 自定义绘图 无法进入CDDS_ITEMPREPAINT

case   NM_CUSTOMDRAW:
if   (((LPNMHDR)lParam)-> idFrom   ==   IDC_LISTVIEW)
{
LPNMLVCUSTOMDRAW   lplvcd   =   (LPNMLVCUSTOMDRAW)lParam;
switch   (lplvcd-> nmcd.dwDrawStage)
{
case   CDDS_PREPAINT   :
return   CDRF_NOTIFYITEMDRAW;
case   CDDS_ITEMPREPAINT:
                                                                        //自绘函数   draw（）；
return   CDRF_SKIPDEFAULT;
default:
return   CDRF_DODEFAULT;
}
}
}
break;

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