如何通过 WinCE 访问 WAP 数据

WAP 的访问需要通过 Wireless Datagram Protocol (WDP) 协议来实现。前提是 WinCE OS 在定制时需要选择 WAP 相应的组件，否则在使用相应的 SDK 编译时，对应的 WAP 功能函数无法编译通过。

因前公司项目需要，写了如下的代码。但未经过测试（项目所需功能确认无法通过 WAP 实现），也未提供此部分代码给公司，所以在网上放出来供大家参考。

以下是在 WinCE6.0 下，使用 VS2008 开发环境的示例代码：

// WapTestDlg.cpp : 实现文件// #include "stdafx.h"#include "WapTest.h"#include "WapTestDlg.h"#include "wap.h"#ifdef _DEBUG#define new DEBUG_NEW#endif// http://technet.microsoft.com/zh-cn/windows/ee497490(en-us).aspx// http://msdn.microsoft.com/zh-cn/library/ee497490(v=WinEmbedded.60)//  Use UDP bearer if bUDP = true, use SMS bearer if bUDP = false;bool WdpSendAndReadEcho( bool bUDP ) {bool bSendReadOK = false;HRESULT hResult;//  Open WAP for Sending WDP UnitDataconst WAP_LAYER wlLayer = WAP_LAYER_WDP;const DWORD dwSendPort = 3000L;WAP_HANDLE hWapSend = 0L;HANDLE hWapSendMsgEvent= NULL;//  Open WAP for reading WDP UnitDataconst DWORD dwRecvPort = 3001L;WAP_HANDLE hWapRecv= 0L;HANDLE hWapRecvMsgEvent = NULL;//  Create WDP UnitData structure with user dataWAP_ADDRESS waSendRecv;const TCHAR *const tszIpLoopbackAddr = _T("127.0.0.1");// For UDP bearerconst TCHAR *const tszTelNum = _T("8009352663");   // Sample Phone number, used for SMS bearerWDP_UNITDATA Wdpunitdata;DWORD dwWdpRecvDataSize = 0L;WDP_UNITDATA *pcbWdpRecvData = NULL;// Use temporary buffer because pbUserData is const BYTE * BYTE *pbBuffer = NULL;hResult = WapOpen( wlLayer, dwSendPort, &hWapSend, &hWapSendMsgEvent );if ( FAILED(hResult) || !hWapSend || !hWapSendMsgEvent  ) {OutputDebugString( _T("WapOpen() for sending WDP UnitData failed") );hWapSend = 0L;hWapSendMsgEvent= NULL;return false;}hResult = WapOpen( wlLayer, dwRecvPort, &hWapRecv, &hWapRecvMsgEvent );if ( FAILED(hResult) || !hWapRecv || !hWapRecvMsgEvent ) {OutputDebugString( _T("WapOpen() for reading WDP UnitData failed") );hWapRecv= 0L;goto exit_label;}if(bUDP){_tcsncpy( waSendRecv.ptsAddress, tszIpLoopbackAddr, MAX_WAP_ADDRESS_LENGTH );}else{_tcsncpy( waSendRecv.ptsAddress, tszTelNum, MAX_WAP_ADDRESS_LENGTH);}waSendRecv.watAddressType = bUDP ? WAP_ADDRESS_TYPE_UDP : WAP_ADDRESS_TYPE_GSM_SMS;// Initialize the WDP UnitDatamemset( &Wdpunitdata, 0, sizeof(Wdpunitdata) );Wdpunitdata.wpiPrimitiveID = WAP_PRIMITIVE_ID_T_DUNITDATA;Wdpunitdata.wptPrimitiveType = WAP_PRIMITIVE_TYPE_REQUEST;Wdpunitdata.dwValidFields =  (WDP_FIELD_SOURCEADDRESS      |WDP_FIELD_SOURCEPORT         |WDP_FIELD_DESTINATIONADDRESS |WDP_FIELD_DESTINATIONPORT    |WDP_FIELD_USERDATA );Wdpunitdata.waSourceAddress =  waSendRecv;Wdpunitdata.dwSourcePort = dwSendPort;Wdpunitdata.waDestinationAddress = Wdpunitdata.waSourceAddress;Wdpunitdata.dwDestinationPort = dwRecvPort;// Set Random user data with size = 0x100Wdpunitdata.dwUserDataSize = 0x100;if(pbBuffer = new BYTE[Wdpunitdata.dwUserDataSize]){// Fill the user data section with random datafor ( DWORD dw = 0; dw < Wdpunitdata.dwUserDataSize; dw++ ) {pbBuffer[ dw ] = rand() % 0xFF;}}    else {goto exit_label;}Wdpunitdata.pbUserData = pbBuffer;//  Send WDP DatahResult = WapSend( hWapSend, (WAP_PRIMITIVE_BASE *)&Wdpunitdata );if ( FAILED(hResult) ) {OutputDebugString( _T("WapSend() with WDP Unitdata failed") );goto exit_label;}//  Wait for WAP message received Eventif ( WAIT_OBJECT_0 != WaitForSingleObject( hWapRecvMsgEvent , 10000L )){OutputDebugString( _T("Failed to wait for or timed out waiting for expected WDP Data") );goto exit_label;}hResult = WapGetNextPrimitiveSize( hWapRecv, &dwWdpRecvDataSize);if ( FAILED(hResult) || (0 == dwWdpRecvDataSize) ) {OutputDebugString( _T("WapGetNextPrimitiveSize() failed") );goto exit_label;}//  Allocate memory for storing received WDP DatapcbWdpRecvData =( WDP_UNITDATA* ) new BYTE[ dwWdpRecvDataSize ];if ( !pcbWdpRecvData) {OutputDebugString( _T("Failed to allocate memory for storing WDP Unit Data") );goto exit_label;}//  Read WDP DatahResult = WapRead( hWapRecv, (WAP_PRIMITIVE_BASE *)pcbWdpRecvData, dwWdpRecvDataSize );if ( FAILED(hResult) ) {OutputDebugString( _T("WapRead() failed") );goto exit_label;}// Validate the received primitive and// Compare the received user data to the sent user dataif (!pcbWdpRecvData)goto exit_label;bSendReadOK = true;bSendReadOK &= (WAP_PRIMITIVE_ID_T_DUNITDATA == pcbWdpRecvData->wpiPrimitiveID);bSendReadOK &= (WAP_PRIMITIVE_TYPE_INDICATION == pcbWdpRecvData->wptPrimitiveType);bSendReadOK &= (pcbWdpRecvData->dwValidFields & WDP_FIELD_SOURCEADDRESS ) && ( pcbWdpRecvData->dwValidFields & WDP_FIELD_SOURCEPORT );bSendReadOK &= (pcbWdpRecvData->dwUserDataSize == Wdpunitdata.dwUserDataSize);if(bSendReadOK && pcbWdpRecvData->pbUserData){bSendReadOK &= !memcmp(pcbWdpRecvData->pbUserData, Wdpunitdata.pbUserData, pcbWdpRecvData->dwUserDataSize);}exit_label://  Close WAP for Sending WDP UnitDataif ( hWapSend) {hResult = WapClose( hWapSend );if ( FAILED(hResult) ) {OutputDebugString( _T("WapClose() for sending WDP UnitData failed") );bSendReadOK = false;} else {hWapSend = 0L;}}//  Close WAP for Receiving WDP UnitDataif ( hWapRecv ) {hResult = WapClose( hWapRecv );if ( FAILED(hResult) ) {OutputDebugString( _T("WapClose() for reading WDP UnitData failed") );bSendReadOK = false;} else {hWapRecv = 0L;}}// Clear the buffersif (pbBuffer) {delete[] (BYTE*) pbBuffer;pbBuffer = NULL;}if ( pcbWdpRecvData ) {delete [] (BYTE*) pcbWdpRecvData;pcbWdpRecvData = NULL;}return bSendReadOK;}// CWapTestDlg 对话框CWapTestDlg::CWapTestDlg(CWnd* pParent /*=NULL*/): CDialog(CWapTestDlg::IDD, pParent){m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);}void CWapTestDlg::DoDataExchange(CDataExchange* pDX){CDialog::DoDataExchange(pDX);}BEGIN_MESSAGE_MAP(CWapTestDlg, CDialog)#if defined(_DEVICE_RESOLUTION_AWARE) && !defined(WIN32_PLATFORM_WFSP)ON_WM_SIZE()#endif//}}AFX_MSG_MAPEND_MESSAGE_MAP()// CWapTestDlg 消息处理程序BOOL CWapTestDlg::OnInitDialog(){CDialog::OnInitDialog();// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动//  执行此操作SetIcon(m_hIcon, TRUE);// 设置大图标SetIcon(m_hIcon, FALSE);// 设置小图标// TODO: 在此添加额外的初始化代码WdpSendAndReadEcho(true);return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE}