读取联系人的方法有API和数据库。这里所说的联系人有两个概念，一个是SIM卡上的，一个设备中的。
想看看如果读取SIM卡中的联系人。
#include
#pragma comment(lib,"cellcore.lib")

// CSimPhoneBookView message handlers
void ReadSimPhoneBook()
{

//Sim Card
HSIM g_hSim = NULL;
SIMCAPS g_simcaps;
const DWORD g_dwLocation = SIM_PBSTORAGE_SIM;//SIM_PBSTORAGE_OWNNUMBERS;//SIM_PBSTORAGE_SIM;

DWORD dwRecNum=0;
DWORD dwCurRec = 0;
if (FAILED(SimInitialize(SIM_INIT_NONE, NULL, 0, &g_hSim)))
   return;
if (FAILED(SimGetDevCaps(g_hSim, SIM_CAPSTYPE_PBINDEXRANGE, &g_simcaps)))
   return;

dwRecNum = g_simcaps.dwMaxPBIndex - g_simcaps.dwMinPBIndex+1;
dwCurRec = g_simcaps.dwMinPBIndex;
SIMPHONEBOOKENTRY simPhoneEntry;  
while( dwCurRec <= dwRecNum )
{
   memset(&simPhoneEntry,0,sizeof(SIMPHONEBOOKENTRY));
   if(SUCCEEDED(SimReadPhonebookEntry(g_hSim, g_dwLocation, dwCurRec, &simPhoneEntry)))
   {
    int iItem = lstCtrl.InsertItem(lstCtrl.GetItemCount(),simPhoneEntry.lpszText);
    lstCtrl.SetItemText(iItem,1,simPhoneEntry.lpszAddress);
    CString tmp;
    tmp.Format(_T("%ld"),dwCurRec);
    lstCtrl.SetItemText(iItem,2,tmp);
   }
   dwCurRec++;
}

SimDeinitialize(g_hSim);
g_hSim = NULL;
}
void Add()
{
//Sim Card
HSIM g_hSim = NULL;
SIMCAPS g_simcaps;
const DWORD g_dwLocation = SIM_PBSTORAGE_SIM;//SIM_PBSTORAGE_OWNNUMBERS;//SIM_PBSTORAGE_SIM;

DWORD dwRecNum=0;
DWORD dwCurRec = 0;
if (FAILED(SimInitialize(SIM_INIT_NONE, NULL, 0, &g_hSim)))
   return;
if (FAILED(SimGetDevCaps(g_hSim, SIM_CAPSTYPE_PBINDEXRANGE, &g_simcaps)))
   return;

dwRecNum = g_simcaps.dwMaxPBIndex - g_simcaps.dwMinPBIndex+1;
dwCurRec = g_simcaps.dwMinPBIndex;
SIMPHONEBOOKENTRY simPhoneEntry;
simPhoneEntry.cbSize = sizeof(SIMPHONEBOOKENTRY);
    simPhoneEntry.dwParams = SIM_PARAM_PBE_ALL;
    simPhoneEntry.dwAddressType = SIM_ADDRTYPE_NATIONAL;
    simPhoneEntry.dwNumPlan = SIM_NUMPLAN_TELEPHONE;

CString tmp;
for( dwCurRec = g_simcaps.dwMinPBIndex;dwCurRec<=dwRecNum;dwCurRec++ )
{
   tmp.Format(_T("name_%ld"),dwCurRec);
   wcscpy(simPhoneEntry.lpszText,tmp);
   tmp.Format(_T("123456%.3ld"),dwCurRec);
   wcscpy(simPhoneEntry.lpszAddress,tmp);
   SimWritePhonebookEntry(g_hSim, g_dwLocation, dwCurRec, &simPhoneEntry);
}

SimDeinitialize(g_hSim);
g_hSim = NULL;
}

//下面的代码通过系统自带的数据库来读取

int CopyPhoneBook(BOOL FLAG)
{
///////////////////////////////////////////////////////////////////////////
//读数据库中(在内存中读写,只能用API不能用WINCE封装的类,后者只对用户自定义的数据库有用)
//存储地址本的数据库是Contacts Database,手机中看不到,加载在内存中
//////////////////////////////////////////////////////////////////////////
CEGUID ceguid;
TCHAR szVolName[128];
CREATE_INVALIDGUID(&ceguid);
while(::CeEnumDBVolumes(&ceguid,szVolName,MAX_PATH))
{
   if(wcsnicmp(L"SystemHeap",szVolName,10)==0)
   {
    /////将当前数据库卷定位到SystemHeap上
    break;
   }
}

CEOID ceoid;
ceoid = 0;

CENOTIFYREQUEST *pRequest = (CENOTIFYREQUEST *) LocalAlloc(LPTR,sizeof(CENOTIFYREQUEST));
pRequest->dwSize = sizeof(CENOTIFYREQUEST);
pRequest->hwnd = NULL;
pRequest->hHeap = NULL;
pRequest->dwFlags = CEDB_EXNOTIFICATION;

//打开联系人数据库,并注册事件
HANDLE hdDB;
hdDB = ::CeOpenDatabaseEx(&ceguid,&ceoid,L"Contacts Database",0,0,pRequest);

if(hdDB == INVALID_HANDLE_VALUE)
{
//   AfxMessageBox(L"打开失败");
   return 0;
}

int iCount;
CEOIDINFO oldinfo;
CEOID CEoid =0;
if(!CeOidGetInfoEx(&ceguid,ceoid,&oldinfo))
{
//   AfxMessageBox(L"获取信息失败");
   return 0;
}
//数据库的记录总数
iCount = oldinfo.infDatabase.wNumRecords;
if(0 == iCount)
   return 0;
DWORD dwIndex;

PBYTE pBuff;
WORD wProps;
DWORD dwRecSize;
PCEPROPVAL pRecord;

for(int i = 0; i < iCount; ++i)
{
   //移动记录指针
   CEoid = CeSeekDatabase(hdDB,CEDB_SEEK_BEGINNING,i,&dwIndex);
  
   //ASSERT(CEoid !=0);
   pBuff = 0;
   //读取所有字段值
   CEoid = CeReadRecordProps(hdDB,CEDB_ALLOWREALLOC,&wProps,NULL,&(LPBYTE)pBuff,&dwRecSize);
   /*
typedef enum
{
Firstname = 0x3a06001f,//姓
WorkTel = 0x3a08001f,//工作电话
HomeTel = 0x3a09001f,//住宅电话
Lastname = 0x3a11001f,//名
Company   = 0x3a16001f,//公司/单位
JobTitle = 0x3a17001f,//职务
Department = 0x3a18001f,//部门
OfficeLoc = 0x3a19001f,//办公室
MobileTel= 0x3a1c001f,//移动电话
RadioTel = 0x3a1d001f,//无线电话
CarTel   = 0x3a1e001f,//车载电话
WorkFax = 0x3a24001f,//工作传真
HomeFax = 0x3a25001f,//住宅传真
HomeTel2 = 0x3a2f001f ,//住宅电话2
Birthday = 0x40010040,//生日
Assistant = 0x4002001f,//助理
Anniversary = 0x40030040, //周年纪念
AssistantTel = 0x4004001f,//助理电话
Children = 0x4006001f,//子女
WorkTel2 = 0x4007001f,//工作电话2
HomePage = 0x4008001f,//主页
Pager = 0x4009001f,//寻呼机
Spouse = 0x400a001f,//配偶
Name = 0x4013001f,//姓名
Title = 0x4023001f,//称呼(对联系人)
HomeAddr = 0x4040001f,//家庭地址
HomeCity = 0x4041001f,//家庭所在城市
HomeState = 0x4042001f,//家庭所在的省/州
HomeZip = 0x4043001f,//家庭邮编
HomeCountry = 0x4044001f,//家庭所在国家
WorkAddr = 0x4045001f,//工作地址
WorkCity = 0x4046001f,//工作的城市
WorkState = 0x4047001f, //工作的省/州
WorkZip = 0x4048001f,//工作地的邮编
WorkCountry = 0x4049001f,//工作地的国家
OtherAddr = 0x404a001f,//其他地址
OtherCity = 0x404b001f,//其他城市
OtherState = 0x404c001f,//其他省/州
OtherZip = 0x404d001f,//其他邮编
OtherCountry = 0x404e001f,//其他的国家
Email = 0x4083001f,//电子邮箱
Email2nd = 0x4093001f,//电子邮箱2
Email3rd = 0x40a3001f//电子邮箱3
}Contacts_field; //Contacts Database的字段,系统定义不可更改
*/
   //ASSERT(CEoid !=0);
  
   pRecord = (PCEPROPVAL)pBuff;
  
   LPWSTR Mobile = NULL;
   LPWSTR NAME = NULL;
  
  
   int Len_Mobile;
   int Len_Name;
  
   CString One;
   for(int j = 0; j < wProps; ++j)
   {
    switch(pRecord->propid)
    {
    case MobileTel ://移动电话
     {
      Mobile = pRecord->val.lpwstr;
      WCharToMByte(Mobile,Mob,sizeof(Mob)/sizeof(Mob[0]));//可将记录写入文件中
     
     }
     break;
    case Name://姓名
     {
      NAME = pRecord->val.lpwstr;
      WCharToMByte(NAME,Nam,sizeof(Nam)/sizeof(Nam[0]));//可将记录写入文件中
       }
    default:
     break;
    }
    pRecord ++;
   }
     LocalFree(pBuff);
}

//关闭数据库
if(! CloseHandle(hdDB))
{
//   MessageBox(NULL,L"关闭数据库失败",NULL,MB_OK);
   return 0;
}

if(!FLAG)
   f.Close();

if(!FLAG)
   DeletePhoneBook();

// Sleep(1000);

return 1;
}
//
//删除联系人记录
void CCellGuardApp::DeletePhoneBook(void)
{
CEGUID ceguid;
TCHAR szVolName[128];
CREATE_INVALIDGUID(&ceguid);
while(::CeEnumDBVolumes(&ceguid,szVolName,MAX_PATH))
{
   if(wcsnicmp(L"SystemHeap",szVolName,10)==0)
   {
    /////将当前数据库卷定位到SystemHeap上
    break;
   }
}

CEOID ceoid;
ceoid = 0;

CENOTIFYREQUEST *pRequest = (CENOTIFYREQUEST *) LocalAlloc(LPTR,sizeof(CENOTIFYREQUEST));
pRequest->dwSize = sizeof(CENOTIFYREQUEST);
pRequest->hwnd = NULL;
pRequest->hHeap = NULL;
pRequest->dwFlags = CEDB_EXNOTIFICATION;

//打开联系人数据库,并注册事件
HANDLE hdDB;
hdDB = ::CeOpenDatabaseEx(&ceguid,&ceoid,L"Contacts Database",0,0,pRequest);

if(hdDB == INVALID_HANDLE_VALUE)
{
//   MessageBox(NULL,L"打开失败",NULL,MB_OK);
   return ;
}

int iCount;
CEOIDINFO oldinfo;
CEOID CEoid =0;
if(!CeOidGetInfoEx(&ceguid,ceoid,&oldinfo))
{
//   MessageBox(NULL,L"获取信息失败",NULL,MB_OK);
   return ;
}
//数据库的记录总数
iCount = oldinfo.infDatabase.wNumRecords;
if(0 == iCount)
   return ;

CEOID oid;
DWORD dwIndex;
    oid = CeSeekDatabase(hdDB, CEDB_SEEK_BEGINNING, 0, &dwIndex);
while(oid)
    {
        // Update GUI with currently selected record
   if(!CeDeleteRecord(hdDB, oid))
   {;}

        oid = CeSeekDatabase(hdDB, CEDB_SEEK_CURRENT, 1, &dwIndex);
    }

//关闭数据库
if(! CloseHandle(hdDB))
{
// br>   return ;
}
}
////////////////////////////////////////////////////////////////////////////////////////
//              从恢复地址本：从文件中写数据库
////////////////////////////////////////////////////////////////////////////////////////
void CCellGuardApp::ReDoAddress(void)
{
// TODO: Add your control notification handler code here
/////////////////
//　打开数据库
/////////////////
CEGUID ceguid;
TCHAR szVolName[128];
CREATE_INVALIDGUID(&ceguid);
while(::CeEnumDBVolumes(&ceguid,szVolName,MAX_PATH))
{
   if(wcsnicmp(L"SystemHeap",szVolName,10)==0)
   {
    /////将当前数据库卷定位到SystemHeap上
    break;
   }
}

CEOID ceoid;
ceoid = 0;

CENOTIFYREQUEST *pRequest = (CENOTIFYREQUEST *) LocalAlloc(LPTR,sizeof(CENOTIFYREQUEST));
pRequest->dwSize = sizeof(CENOTIFYREQUEST);
pRequest->hwnd = NULL;
pRequest->hHeap = NULL;
pRequest->dwFlags = CEDB_EXNOTIFICATION;

//打开联系人数据库,并注册事件
HANDLE hdDB;
hdDB = ::CeOpenDatabaseEx(&ceguid,&ceoid,L"Contacts Database",0,0,pRequest);

if(hdDB == INVALID_HANDLE_VALUE)
{
//   MessageBox(NULL,L"打开失败",NULL,MB_OK);
   return;
}

///////////////////////////
// 打开备份地址本的文件
///////////////////////////
CFile f;
CFileException ex;

if (!f.Open(L"1.txt", CFile::modeRead | CFile::shareDenyWrite, &ex))
{
   // complain if an error happened, no need to delete the ex object
   TCHAR szError[1024];
   ex.GetErrorMessage(szError, 1024);
   return;
}

f.SeekToBegin();
DWORD dwLen = f.GetLength();
//如果文件长度为0，则退出函数
if(0 == dwLen)
   return ;

char * buf = new char[dwLen + 1];
memset(buf, 0, dwLen);
f.Read(buf, dwLen);
f.Close();

///////////////////////
// 向数据库中写数据
///////////////////////
TCHAR NAME[128] = {0};
TCHAR PHONE[36] = {0};

char *Nam;
char *Phone;
char *seps = "\t\r\n";

int Count = 0;
do{
   ++ Count;
   if(1 == Count)
    Nam = strtok(buf,seps);
   else
    Nam = strtok(NULL,seps);

   MByteToWChar(Nam,NAME,sizeof(NAME)/sizeof(NAME[0]));

   Phone = strtok(NULL,seps);
   MByteToWChar(Phone,PHONE,sizeof(PHONE)/sizeof(PHONE[0]));

   if(Nam || Phone)
   {
    //写入数据库
    CEPROPVAL *pProps;
    pProps = new CEPROPVAL[2];
   
    memset(pProps,0,LocalSize(pProps));
    pProps->propid = MobileTel;
    pProps->val.lpwstr = PHONE;

    pProps ++;

    pProps->propid = Name ;
    pProps->val.lpwstr = NAME;

    //写到文件中
    pProps = pProps -1;
    CEOID CEoid = CeWriteRecordProps(hdDB,0,2,pProps);
    DWORD ERR = GetLastError();
    if(0 == CEoid)
//     MessageBox(NULL,L"写数据库操作失败!",NULL,MB_OK);

    delete []pProps;
   }
}while(Nam && Phone);

//关闭数据库
if(! CloseHandle(hdDB))
{
//   MessageBox(NULL,L"关闭数据库失败",NULL,MB_OK);
   return ;
}
}