Question

CListCtrl的OnNMCustomdraw为什么总是执行CDDS_PREPAINT

void CMyListCtrlNew::OnNMCustomdraw(NMHDR *pNMHDR, LRESULT *pResult)
{
NMLVCUSTOMDRAW* pLVCD = reinterpret_cast<NMLVCUSTOMDRAW*>( pNMHDR );
*pResult = CDRF_DODEFAULT;
switch (pLVCD->nmcd.dwDrawStage)
{
case CDDS_PREPAINT: //总是执行这一选项
*pResult = CDRF_NOTIFYITEMDRAW;
break;

case pLVCD->nmcd.dwDrawStage:
*pResult = CDRF_NOTIFYSUBITEMDRAW;
break;
case CDDS_ITEMPREPAINT | CDDS_SUBITEM:
{
COLORREF crText, crBkgnd;
if ( 0 == pLVCD->iSubItem )
{
crText = RGB(255,0,0);
crBkgnd = RGB(128,128,255);
}
else if ( 1 == pLVCD->iSubItem )
{
crText = RGB(0,255,0);
crBkgnd = RGB(255,0,0);
}
else
{
crText = RGB(128,128,255);
crBkgnd = RGB(0,0,0);
}
pLVCD->clrText = crText;
pLVCD->clrTextBk = crBkgnd;
*pResult = CDRF_DODEFAULT;
break;
}
}
}
第二个case写错了，应该是case CDDS_ITEMPREPAINT:

若以下回答无法解决问题，邀请你更新回答

Answer 1

我也不知道哪里错了，是要改变listctrl的文字颜色吗？
codeproject上有一个例子，很好的，我就是参照那个写的
名字是Neat Stuff to Do in List Controls Using Custom Draw，你在google你搜一下吧