Windows mobile 开发入门—网络程序的开发

这里讲的网络程序的开发,主要是在程序中连接网络,在CF中UDP与TCP与Windows 应用程序相差不多.

设置 

     mobile要联接网络,先觉条件是要有一个拔号设置,移动拔号设置分为cmwap,cmnet.这个设置非常的重要,cmwap只支持http而不支持tcp和udp,因为这个原因我曾经就花费过许多时间.

开始-->设置-->连接(选项卡)—>连接(按钮)—>高级-->选择网络 在这里你可以选择一个已经有的网络，或者新建一个网络.

 

新建连接

1点击新建

2在常规选项卡里输入连接的名字

3在调制解调器选项卡点击新建，弹出新建对话框

4输入新建连接名字，选择电话线路(gprs),点击下一步

5在访问点的名字输入cmwap,或者cmnet 选择下一步

6用户名密码不用填 ，完成连接

在使用时只要选择即可。

具体的设置可以打10086，或者其它运营商咨询。

 

程序拔号

如果webservice，程序会在没有连接网络时自动连接。但在开发UDP、TCP网络程序时，经常要考虑到是否连接到网络，如果没有则需要程序拔号。现在已经有开源代码实现这个功能。主要有两个类ConnectManager.cs,GPRSManage.cs 这两个人实现方式差不多，都是调用系统方法。

在使用的时候这样调用就可以了。

Code
  1using System;
  2using System.Collections.Generic;
  3using System.Text;
  4using System.Runtime.InteropServices;
  5using System.Threading;
  6using System.Collections;
  7
  8namespace Connection
  9{
 10    public class ConnectManager
 11    {
 12        const int S_OK = 0;
 13        const uint CONNMGR_PARAM_GUIDDESTNET = 0x1;
 14        const uint CONNMGR_PRIORITY_USERINTERACTIVE = 0x08000;
 15        const uint INFINITE = 0xffffffff;
 16        const uint CONNMGR_STATUS_CONNECTED = 0x10;
 17        const int CONNMGR_MAX_DESC = 128;    // @constdefine Max size of a network description
 18
 19        const int CONNMGR_FLAG_PROXY_HTTP = 0x1; // @constdefine HTTP Proxy supported
 20        const int CONNMGR_FLAG_PROXY_WAP = 0x2; // @constdefine WAP Proxy (gateway) supported
 21        const int CONNMGR_FLAG_PROXY_SOCKS4 = 0x4; // @constdefine SOCKS4 Proxy supported
 22        const int CONNMGR_FLAG_PROXY_SOCKS5 = 0x8; // @constdefine SOCKS5 Proxy supported
 23
 24        const UInt16 IDC_WAIT = 32514;
 25        const UInt16 IDC_ARROW = 32512;
 26
 27        private IntPtr m_hConnection = IntPtr.Zero;
 28
 29        public ConnectManager()
 30        {
 31        }
 32
 33        ~ConnectManager()
 34        {
 35            ReleaseConnection();
 36        }
 37
 38        /**//// <summary>
 39        /// 查看连接是否可用
 40        /// </summary>
 41        /// <returns></returns>
 42        public bool GetConnMgrAvailable()
 43        {
 44            IntPtr hConnMgr = ConnMgrApiReadyEvent();
 45            bool bAvailbale = false;
 46            uint dwResult = WaitForSingleObject ( hConnMgr, 2000 );
 47
 48            if (dwResult == 0)
 49            {
 50                bAvailbale = true;
 51            }
 52
 53            // 关闭
 54            if (hConnMgr.ToInt32() != 0) CloseHandle(hConnMgr);
 55
 56            return bAvailbale;
 57        }
 58        /**//// <summary>
 59        /// 映射URL
 60        /// </summary>
 61        /// <param name="lpszURL"></param>
 62        /// <param name="guidNetworkObject"></param>
 63        /// <param name="pcsDesc"></param>
 64        /// <returns></returns>
 65        public int MapURLAndGUID(string lpszURL, ref GUID guidNetworkObject, ref string pcsDesc)
 66        {
 67            if (lpszURL == null || lpszURL.Length < 1)
 68                return 0;
 69
 70            uint nIndex = 0;
 71            int hResult = ConnMgrMapURL(lpszURL,ref guidNetworkObject, ref nIndex);
 72            if (hResult < 0)
 73            {
 74                throw new Exception("Could not map a request to a network identifier");
 75            }
 76            else
 77            {
 78                if (pcsDesc != null)
 79                {
 80                    CONNMGR_DESTINATION_INFO DestInfo = new CONNMGR_DESTINATION_INFO();
 81                    if (ConnMgrEnumDestinations((int)nIndex, ref DestInfo) >= 0)
 82                    {
 83                        pcsDesc = DestInfo.szDescription;
 84                    }
 85                }
 86            }
 87
 88            return (int)nIndex;
 89        }
 90        /**//// <summary>
 91        /// 枚举网络标识符信息
 92        /// </summary>
 93        /// <param name="lstNetIdentifiers"></param>
 94        public List<CONNMGR_DESTINATION_INFO> EnumNetIdentifier()
 95        {
 96            List<CONNMGR_DESTINATION_INFO> lstNetIdentifiers = new List<CONNMGR_DESTINATION_INFO>();
 97            // 得到网络列表
 98            for (uint dwEnumIndex = 0; ; dwEnumIndex++)
 99            {
100                CONNMGR_DESTINATION_INFO networkDestInfo = new CONNMGR_DESTINATION_INFO();
101                
102                if (ConnMgrEnumDestinations((int)dwEnumIndex,ref networkDestInfo) != 0)
103                {
104                    break;
105                }
106                lstNetIdentifiers.Add(networkDestInfo);
107            }
108
109            return lstNetIdentifiers;
110        }
111        
112        /**//// <summary>
113        /// 建立连接
114        /// </summary>
115        /// <param name="nIndex"></param>
116        /// <returns></returns>
117        public bool EstablishConnection(uint nIndex, uint dwStatus)
118        {
119            ReleaseConnection();
120            // 得到正确的连接信息
121            CONNMGR_DESTINATION_INFO DestInfo = new CONNMGR_DESTINATION_INFO();
122            int hResult = ConnMgrEnumDestinations((int)nIndex, ref DestInfo);
123
124            if (hResult >= 0)
125            {
126                // 初始化连接结构
127                CONNMGR_CONNECTIONINFO ConnInfo = new CONNMGR_CONNECTIONINFO();
128
129                ConnInfo.cbSize = (uint)Marshal.SizeOf(ConnInfo);
130                ConnInfo.dwParams = CONNMGR_PARAM_GUIDDESTNET;
131                ConnInfo.dwFlags = CONNMGR_FLAG_PROXY_HTTP | CONNMGR_FLAG_PROXY_WAP | CONNMGR_FLAG_PROXY_SOCKS4 | CONNMGR_FLAG_PROXY_SOCKS5;
132                ConnInfo.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
133                ConnInfo.guidDestNet = DestInfo.guid;
134                ConnInfo.bExclusive = 0;
135                ConnInfo.bDisabled = 0;
136
137                //uint dwStatus = 0;
138                hResult = ConnMgrEstablishConnectionSync(ref ConnInfo, ref m_hConnection, 15 * 1000, ref dwStatus);
139                if (hResult < 0)
140                {
141                    return false;
142                }
143                else
144                {
145                    return true;
146                }
147            }
148
149            return false;
150        }
151
152        /**//// <summary>
153        /// 建立连接
154        /// </summary>
155        /// <param name="nIndex"></param>
156        /// <returns></returns>
157        public bool EstablishConnection(GUID guid, uint dwStatus)
158        {
159            ReleaseConnection();
160            // 得到正确的连接信息
161           
162                // 初始化连接结构
163                CONNMGR_CONNECTIONINFO ConnInfo = new CONNMGR_CONNECTIONINFO();
164
165                ConnInfo.cbSize = (uint)Marshal.SizeOf(ConnInfo);
166                ConnInfo.dwParams = CONNMGR_PARAM_GUIDDESTNET;
167                ConnInfo.dwFlags = CONNMGR_FLAG_PROXY_HTTP | CONNMGR_FLAG_PROXY_WAP | CONNMGR_FLAG_PROXY_SOCKS4 | CONNMGR_FLAG_PROXY_SOCKS5;
168                ConnInfo.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
169                ConnInfo.guidDestNet = guid;
170                ConnInfo.bExclusive = 0;
171                ConnInfo.bDisabled = 0;
172
173                //uint dwStatus = 0;
174                int hResult = ConnMgrEstablishConnectionSync(ref ConnInfo, ref m_hConnection, 15 * 1000, ref dwStatus);
175                if (hResult < 0)
176                {
177                    return false;
178                }
179                else
180                {
181                    return true;
182                }         
183
184           
185        }
186
187        /**//// <summary>
188        /// 连接状态
189        /// </summary>
190        /// <param name="nTimeoutSec"></param>
191        /// <param name="pdwStatus"></param>
192        /// <returns></returns>
193        public bool WaitForConnected(int nTimeoutSec, ref uint pdwStatus)
194        {
195            uint dwStartTime = GetTickCount();
196            bool bRet = false;
197
198            while (GetTickCount() - dwStartTime < (uint)nTimeoutSec * 1000)
199            {
200                if (m_hConnection.ToInt32() != 0)
201                {
202                    uint dwStatus = 0;
203                    int hr = ConnMgrConnectionStatus(m_hConnection, ref dwStatus);
204                    if (dwStatus != 0) pdwStatus = dwStatus;
205                    if (hr >= 0)
206                    {
207                        if (dwStatus == CONNMGR_STATUS_CONNECTED)
208                        {
209                            bRet = true;
210                            break;
211                        }
212                    }
213                }
214                Thread.Sleep(100);
215            }
216
217            return bRet;
218        }
219
220        /**//// <summary>
221        /// 释放所有连接
222        /// </summary>
223        public void ReleaseConnection()
224        {
225
226            if (m_hConnection.ToInt32() != 0)
227            {
228                ConnMgrReleaseConnection(m_hConnection, 0);
229                m_hConnection = IntPtr.Zero;
230            }
231        }
232
233        [StructLayout(LayoutKind.Sequential)]
234        public struct CONNMGR_CONNECTIONINFO
235        {
236            public uint cbSize;
237            public uint dwParams;
238            public uint dwFlags;
239            public uint dwPriority;
240            public int bExclusive;
241            public int bDisabled;
242            public GUID guidDestNet;
243            public IntPtr hWnd;
244            public uint uMsg;
245            public uint lParam;
246            public uint ulMaxCost;
247            public uint ulMinRcvBw;
248            public uint ulMaxConnLatency;
249        }
250
251        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
252        public struct CONNMGR_DESTINATION_INFO
253        {
254            public GUID guid;  // @field GUID associated with network
255            [MarshalAs(UnmanagedType.ByValTStr,SizeConst = CONNMGR_MAX_DESC)]
256            public string szDescription;  // @field Description of network
257            public int fSecure; // @field Is it OK to allow multi-homing on the network
258        }
259
260        public struct GUID
261        {          // size is 16
262            public uint Data1;
263            public UInt16 Data2;
264            public UInt16 Data3;
265            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
266            public byte[] Data4;
267        }
268
269        [DllImport("coredll.dll")]
270        public static extern uint GetTickCount();
271
272        [DllImport("coredll.dll")]
273        public static extern uint WaitForSingleObject(IntPtr hHandle,uint dwMilliseconds);
274
275        [DllImport("cellcore.dll")]
276        public static extern int ConnMgrMapURL(string pwszURL, ref GUID pguid, ref uint pdwIndex);
277
278        [DllImport("cellcore.dll", CharSet = CharSet.Unicode, SetLastError = true)]
279        unsafe static extern int ConnMgrMapURL(string url, ref Guid guid, int* nIndex);
280
281        [DllImport("cellcore.dll")]
282        public static extern int ConnMgrEstablishConnectionSync(ref CONNMGR_CONNECTIONINFO ci, ref IntPtr phConnection, uint dwTimeout, ref uint pdwStatus);
283
284        [DllImport("cellcore.dll")]
285        private static extern IntPtr ConnMgrApiReadyEvent();
286
287        [DllImport("cellcore.dll")]
288        public static extern int ConnMgrReleaseConnection(IntPtr hConnection, int bCache);
289
290        [DllImport("cellcore.dll")]
291        public static extern int ConnMgrEnumDestinations(int nIndex,ref CONNMGR_DESTINATION_INFO pDestInfo);
292
293        [DllImport("cellcore.dll")]
294        public static extern int ConnMgrConnectionStatus(IntPtr hConnection,    // @parm Handle to connection, returned from ConnMgrEstablishConnection
295            ref uint pdwStatus       // @parm Returns current connection status, one of CONNMGR_STATUS_*
296            );
297
298        [DllImport("coredll.dll")]
299        private static extern int CloseHandle(IntPtr hObject);
300    }
301}
302

 

Code
  1using System;
  2//using System.Collections.Generic;
  3//using System.ComponentModel;
  4//using System.Data;
  5using System.Runtime.InteropServices;
  6using System.Collections;
  7//using System.Net.Sockets;
  8//using System.Windows.Forms;
  9
 10namespace GPRSmanage
 11{
 12
 13    /**//// <summary>
 14    /// GPRS连接类
 15    /// </summary>
 16    public class GPRSmanage
 17    {
 18        const int CONNMGR_PARAM_GUIDDESTNET = 0x1; // guidDestNet -  
 19        const int CONNMGR_PARAM_MAXCOST = 0x2; // ulMaxCost -  
 20        const int CONNMGR_PARAM_MINRCVBW = 0x4; // ulMinRcvBw -  
 21        const int CONNMGR_PARAM_MAXCONNLATENCY = 0x8;
 22        const int CONNMGR_FLAG_PROXY_HTTP = 0x1; // HTTP Proxy
 23        const int CONNMGR_FLAG_PROXY_WAP = 0x2; // WAP Proxy (gateway)
 24        const int CONNMGR_FLAG_PROXY_SOCKS4 = 0x4; // SOCKS4 Proxy
 25        const int CONNMGR_FLAG_PROXY_SOCKS5 = 0x8; // SOCKS5 Proxy
 26        const int CONNMGR_PRIORITY_VOICE = 0x20000; //  
 27        const int CONNMGR_PRIORITY_USERINTERACTIVE = 0x08000; //  
 28        const int CONNMGR_PRIORITY_USERBACKGROUND = 0x02000; //
 29        const int CONNMGR_PRIORITY_USERIDLE = 0x00800; //
 30        const int CONNMGR_PRIORITY_HIPRIBKGND = 0x00200; //
 31        const int CONNMGR_PRIORITY_IDLEBKGND = 0x00080; //
 32        const int CONNMGR_PRIORITY_EXTERNALINTERACTIVE = 0x00020; //
 33        const int CONNMGR_PRIORITY_LOWBKGND = 0x00008; //
 34        const int CONNMGR_PRIORITY_CACHED = 0x00002; //
 35
 36
 37        const int CONNMGR_STATUS_UNKNOWN = 0x00; //  
 38        const int CONNMGR_STATUS_CONNECTED = 0x10; // 
 39        const int CONNMGR_STATUS_DISCONNECTED = 0x20; // 
 40        const int CONNMGR_STATUS_CONNECTIONFAILED = 0x21; // 
 41        const int CONNMGR_STATUS_CONNECTIONCANCELED = 0x22; //  
 42        const int CONNMGR_STATUS_CONNECTIONDISABLED = 0x23; //  
 43        const int CONNMGR_STATUS_NOPATHTODESTINATION = 0x24; //  
 44        const int CONNMGR_STATUS_WAITINGFORPATH = 0x25; //  
 45        const int CONNMGR_STATUS_WAITINGFORPHONE = 0x26; //  
 46        const int CONNMGR_STATUS_WAITINGCONNECTION = 0x40; //  
 47        const int CONNMGR_STATUS_WAITINGFORRESOURCE = 0x41; //  
 48        const int CONNMGR_STATUS_WAITINGFORNETWORK = 0x42; // 
 49        const int CONNMGR_STATUS_WAITINGDISCONNECTION = 0x80; //  
 50        const int CONNMGR_STATUS_WAITINGCONNECTIONABORT = 0x81; // 
 51       
 52
 53        unsafe class CONNMGR_CONNECTIONINFO
 54        {
 55            public int cbSize = 0x40;
 56            public int dwParams = 0;
 57            public int dwFlags = 0;
 58            public int dwPriority = 0;
 59            public int bExclusive = 0;
 60            public int bDisabled = 0;
 61            public Guid guidDestNet = Guid.Empty;
 62            public IntPtr hWnd = IntPtr.Zero;
 63            public int uMsg = 0; // ID Message  
 64            public int lParam = 0; // lParam  
 65            public int ulMaxCost = 0;
 66            public int ulMinRcvBw = 0;
 67            public int ulMaxConnLatency = 0;
 68        }
 69
 70        unsafe class CONNMGR_DESTINATION_INFO
 71        {
 72            public Guid guid = Guid.Empty;
 73            public char* szDescription = null;
 74        }
 75
 76        [DllImport("cellcore.dll", CharSet = CharSet.Unicode, SetLastError = true)]
 77        unsafe static extern int ConnMgrEnumDestinations(int nIndex, CONNMGR_DESTINATION_INFO destinationInfo);
 78
 79        [DllImport("cellcore.dll", CharSet = CharSet.Unicode, SetLastError = true)]
 80        unsafe static extern int ConnMgrMapURL(string url, ref Guid guid, int* nIndex);
 81
 82        [DllImport("cellcore.dll", CharSet = CharSet.Unicode, SetLastError = true)]
 83        unsafe static extern int ConnMgrEstablishConnection(CONNMGR_CONNECTIONINFO pConnInfo, out IntPtr hConnection);
 84
 85        [DllImport("cellcore.dll", CharSet = CharSet.Unicode, SetLastError = true)]
 86        unsafe static extern int ConnMgrEstablishConnectionSync(CONNMGR_CONNECTIONINFO pConnInfo, out IntPtr hConn, uint timeout, uint* status);
 87
 88        [DllImport("cellcore.dll", CharSet = CharSet.Unicode, SetLastError = true)]
 89        unsafe static extern int ConnMgrConnectionStatus(IntPtr hConnection, uint* status);
 90
 91        [DllImport("cellcore.dll", CharSet = CharSet.Unicode, SetLastError = true)]
 92        unsafe static extern int ConnMgrReleaseConnection(IntPtr hConnection, int bCache);
 93
 94        [DllImport("coredll.dll")]
 95        private static extern int CloseHandle(IntPtr hObject);
 96
 97
 98        public static Hashtable ht = new Hashtable();
 99        public IntPtr hConnect;
100        public static unsafe Guid GuidConnection(int nIndex)
101        {
102            Guid guid = Guid.Empty;
103            CONNMGR_DESTINATION_INFO connMgrDestinationInfo = new CONNMGR_DESTINATION_INFO();
104            fixed (char* pDescription = new char[129])
105            {
106                connMgrDestinationInfo.szDescription = pDescription;
107                if (ConnMgrEnumDestinations(nIndex, connMgrDestinationInfo) == 0)
108                    guid = new Guid(connMgrDestinationInfo.guid.ToString());
109            }
110            return guid;
111        }
112        public static unsafe Guid GuidConnectionURL(string url)
113        {
114            Guid guid = Guid.Empty;
115            int result = ConnMgrMapURL(url, ref guid, null);
116            if (result != 0) throw new Exception("ConnMgrMapURL()");
117            return guid;
118        }
119
120        public static unsafe IntPtr EstablishConnection(Guid guid)
121        {
122            CONNMGR_CONNECTIONINFO connectionInfo = new CONNMGR_CONNECTIONINFO();
123            connectionInfo.dwParams = CONNMGR_PARAM_GUIDDESTNET;
124            connectionInfo.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
125            connectionInfo.guidDestNet = guid;
126            connectionInfo.bExclusive = 1;
127            IntPtr hConnection = IntPtr.Zero;
128            int result = ConnMgrEstablishConnection(connectionInfo, out hConnection);
129            if (result != 0) throw new Exception("ConnMgrEstablishConnection()");
130            return hConnection;
131        }
132        public static unsafe IntPtr EstablishConnection_noConnect(Guid guid)
133        {
134            CONNMGR_CONNECTIONINFO connectionInfo = new CONNMGR_CONNECTIONINFO();
135            connectionInfo.dwParams = CONNMGR_PARAM_GUIDDESTNET;
136            connectionInfo.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
137            connectionInfo.guidDestNet = guid;
138            connectionInfo.bDisabled = 0;
139            connectionInfo.bExclusive = 1;
140            IntPtr hConnection = IntPtr.Zero;
141            int result = ConnMgrEstablishConnection(connectionInfo, out hConnection);
142            if (result != 0) throw new Exception("ConnMgrEstablishConnection()");
143            return hConnection;
144        }
145        public static unsafe IntPtr EstablishConnectionSync(Guid guid, double timeout)
146        {
147            CONNMGR_CONNECTIONINFO connectionInfo = new CONNMGR_CONNECTIONINFO();
148            connectionInfo.dwParams = CONNMGR_PARAM_GUIDDESTNET;
149            connectionInfo.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE;
150            connectionInfo.guidDestNet = guid;
151            IntPtr hConnection = IntPtr.Zero;
152            uint tout = (uint)(timeout * 1000 + 1);
153            uint status = 0;
154            int result = ConnMgrEstablishConnectionSync(connectionInfo, out hConnection, tout, &status);
155            if (result != 0) throw new Exception("ConnMgrEstablishConnectionSync()");
156            return hConnection;
157        }
158
159        public static unsafe void ReleaseConnection(IntPtr hConnection)
160        {
161            int result = ConnMgrReleaseConnection(hConnection, 0);
162            if (result != 0) throw new Exception("ConnMgrReleaseConnection()");
163        }
164        
165        public void OpenGprs()
166        {
167            try
168            {
169                Guid guid = GuidConnectionURL("http://www.google.cn/");
170                hConnect = EstablishConnection(guid);
171            }
172            catch (Exception ex)
173            {
174                throw new Exception("打开GPRS错误");
175            }
176        }
177
178        public void CloseGprs()
179        {
180            try
181            {
182                Guid guid = GuidConnectionURL("http://www.google.cn/");
183                IntPtr hConnection = EstablishConnection(guid);
184                //IntPtr hConnection = EstablishConnection_noConnect(guid);
185                ReleaseConnection(hConnection);
186                //IsConnected = false;
187            }
188            catch (Exception ex)
189            {
190                throw new Exception("关闭GPRS错误，可能未存在GPRS联接");
191            }
192        }
193
194        public unsafe uint CheckGprsStatus()
195        {
196            uint status = 0;
197
198            Guid guid = GuidConnectionURL("http://www.google.cn/");
199            IntPtr hConnection = EstablishConnection_noConnect(guid);
200            System.Threading.Thread.Sleep(500);
201            int ret = ConnMgrConnectionStatus(hConnection, &status);
202        
203            return status;
204        }
205
206    }
207
208}
209

 

public uint ConnectMobileNetwork()
     {
         try
         {
             uint dwStatus = 0;
             string csDesc = "";
             ConnectManager.GUID guidNetworkObject = new ConnectManager.GUID();
             int nIndex = connectManager.MapURLAndGUID("http://www.google.com.cn%22/, ref guidNetworkObject, ref csDesc);

             if (nIndex >= 0)
             {
                 connectManager.EstablishConnection(guidNetworkObject, dwStatus);
             }

             return dwStatus;

         }
         catch
         {
             return 0;
         }
     }