win32 sdk 清單視圖控件繪制

//
LRESULT ListViewCustomDraw(HWND hwnd, LPARAM lParam)
{
	LPNMHDR pnmh = (LPNMHDR) lParam;
        
    if (pnmh->code != NM_CUSTOMDRAW) return 0;
		
	LPNMLVCUSTOMDRAW lpNMCustomDraw = (LPNMLVCUSTOMDRAW) lParam;

	int nResult = CDRF_DODEFAULT; 
	
	if (CDDS_PREPAINT == lpNMCustomDraw->nmcd.dwDrawStage)
	{
		nResult = CDRF_NOTIFYITEMDRAW;
	}
	else if (CDDS_ITEMPREPAINT == lpNMCustomDraw->nmcd.dwDrawStage)
	{
		nResult = CDRF_NOTIFYSUBITEMDRAW;
	}
	else if ((CDDS_ITEMPREPAINT | CDDS_SUBITEM) == lpNMCustomDraw->nmcd.dwDrawStage)
	{
		nResult = CDRF_SKIPDEFAULT;
		
		const DWORD dwStyle = DT_LEFT | DT_SINGLELINE | DT_VCENTER | DT_NOPREFIX | DT_END_ELLIPSIS;
		
		HDC hdc = lpNMCustomDraw->nmcd.hdc; 
		SetBkMode(hdc,TRANSPARENT);
		int nItem = (int)lpNMCustomDraw->nmcd.dwItemSpec; 
		int nSubItem = lpNMCustomDraw->iSubItem; 
		
		BOOL bItemSelected = ListView_GetItemState(hwnd, nItem, LVIS_SELECTED);
		
		RECT subItemRect;
		ListView_GetSubItemRect(hwnd, nItem, nSubItem, LVIR_BOUNDS, &subItemRect);
//		
		HBRUSH brsh=0; 
		if (bItemSelected)
		{ 	//OutputDebugString("bItemSelected\n");
			brsh=CreateSolidBrush(RGB(255, 128, 128));//yellow
			FillRect(hdc, &subItemRect,brsh);
		}
		else
		{// not Selected
			brsh=CreateSolidBrush(RGB(51+nItem*30, 153, 255-nItem*30));
			FillRect(hdc, &subItemRect,brsh);
		}
		if(brsh) DeleteObject(brsh);
//
		TCHAR szText[260];
		ListView_GetItemText(hwnd, nItem, nSubItem, szText, 260);
		DrawText(hdc, szText, strlen(szText), &subItemRect, dwStyle);
	}
	return nResult;
}
           

關鍵：

else

{// not Selected

brsh=CreateSolidBrush(RGB(51+nItem*30, 153, 255-nItem*30));

FillRect(hdc, &subItemRect,brsh);

}