用C++在windows mobile (PDA)連上手機網路（3G）

當PDA的3G sim卡有插入時，執行PDA上的IE程式，會自動連上3G網路。
但是自己寫的網路程式，卻不會自己連上3G網路。
解決方法如下：

HANDLE hConnection;
int Connect3G(DWORD&  pdwStatus)
{
     CONNMGR_CONNECTIONINFO connInfo;
     connInfo.cbSize = sizeof(connInfo);
     connInfo.dwParams = CONNMGR_PARAM_GUIDDESTNET;
     connInfo.dwFlags = 0;
     connInfo.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
     connInfo.bExclusive = true;
     connInfo.bDisabled = false;
     connInfo.guidDestNet = IID_DestNetInternet;
     connInfo.hWnd = NULL;
     //connInfo.uMsg = WM_APP_CONNMGR;
     connInfo.lParam = (LPARAM)0;
     // Make the connection
     // ConnMgrEstablishConnection(&connInfo , &hConnection);
     //     DWORD pdwStatus ;   
     ConnMgrEstablishConnectionSync(&connInfo , &hConnection,60000,&pdwStatus);
     return 0;
}
void Disconnect3G()
{
     ConnMgrReleaseConnection(hConnection,0);
}