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Outlook风格的使用不同的颜色单列显示新邮件数(2) {
static CRect rcItem;
static int nItemState; LPNMTVCUSTOMDRAW pCustomDraw = (LPNMTVCUSTOMDRAW)pNmhdr;
switch (pCustomDraw->nmcd.dwDrawStage)
{
case CDDS_PREPAINT:
// Need to process this case and set pResult to CDRF_NOTIFYITEMDRAW,
// otherwise parent will never receive CDDS_ITEMPREPAINT notification. (GGH)
*pResult = CDRF_NOTIFYITEMDRAW; // reposuition the viewport so the TreeCtrl DefWindowProc doesn't draw to viewport 0/0
//::SetViewportOrgEx(pCustomDraw->nmcd.hdc, /*m_nOffset*/0, 0, NULL);
break; case CDDS_ITEMPREPAINT:
// set the background and foregroundcolor of the item to the background, so you don't see the default drawing of the text
//get item state(focus,selected..), because it will be drawn of us
nItemState = pCustomDraw->nmcd.uItemState; pCustomDraw->nmcd.uItemState &= ~CDIS_FOCUS;
pCustomDraw->clrText = m_colHilightText;
// remember the drawing rectangle of the item so we can draw it ourselves
m_pTree->GetItemRect((HTREEITEM) pCustomDraw->nmcd.dwItemSpec, &rcItem, TRUE);
*pResult = CDRF_NOTIFYPOSTPAINT;
break; case CDDS_ITEMPOSTPAINT:
DrawTreeItem(nItemState, rcItem, pCustomDraw->nmcd.hdc, (HTREEITEM) pCustomDraw->nmcd.dwItemSpec);
break;
default:
*pResult = CDRF_DODEFAULT;
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