ADSL自动取得宽带帐号密码并重拨 拨号 断开

//取活动连接 宽带连接
HRASCONN GetRasConnecting()
{
	RASCONN rc[10];
	DWORD dwSize;
	DWORD dwNumber = 0;
	rc[0].dwSize = sizeof(RASCONN);
	dwSize = sizeof(rc);

	DWORD dwRet;
	dwRet = RasEnumConnections(rc, &dwSize, &dwNumber);		//枚举已连接的网络
	if (dwRet == 0)
	{
		for (UINT i = 0; i < dwNumber; i++)
			if (lstrcmp(rc[i].szEntryName, "宽带连接") == 0)
			{
				return rc[i].hrasconn;//返回"我的连接"对应的句柄
			}
	}
	return NULL;
}

//拨号
{
	HRASCONN hRasConn = NULL;
	hRasConn = GetRasConnecting();
	if (hRasConn)
	{
		if (RasHangUp(hRasConn) == 0)//断开连接
		{
			Sleep(5000);
			RASDIALPARAMS rdParams;
			BOOL f_get_password;

			rdParams.dwSize = 1052;//这个地方在win7下 使用sizeof(RASDIALPARAMS) 拨号会出732错误
			lstrcpy(rdParams.szEntryName, "宽带连接");
			RasGetEntryDialParams(NULL, &rdParams, &f_get_password);//取得宽带连接 的帐号密码
			if (f_get_password)
			{
				hRasConn2 = NULL;
				auto dwRet = RasDial(NULL, NULL, &rdParams, 0L, NULL, &hRasConn);//拨号
				Sleep(5000);
				if (dwRet == 0)//拨号成功
				{
				...............
				}
			}
	}			
}