[Howto]在Symbian3rd上获取名片夹信息

///------------------------------------------------------
///						名片夹
///------------------------------------------------------

///STEP1 创建名片夹数据库
CContactDatabase* contactsDb = NULL;
TRAPD(err, 	contactsDb = CContactDatabase::OpenL());

if (err == KErrNone)
{
	///STEP2 筛选出所需ID列表
	TTime fromTime = XTimeHelper::UTCTime(iStartTime);
	CContactIdArray* idAry = NULL;
	TRAP(err, idAry = contactsDb->ContactsChangedSinceL(fromTime));
	if (err == KErrNone)
	{
		///STEP3 遍历列表
		int count = idAry->Count();
		
		for (int i = 0; i < count; ++i)
		{
			CContactItem* item = NULL;
			TRAP(err, item = contactsDb->ReadContactL((*idAry)[i]));
			
			//... 处理子项

			delete item;
			item = NULL;
		}
		
		delete idAry;
		idAry = NULL;
	}
	
	///STEP4 释放
	delete contactsDb;
	contactsDb = NULL;
}