VC++ win7下怎么实现WIFI共享工具

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关于无线承载网络

无线承载网络(Wireless Hosted Network)是指安装有无线局域网服务的Windows 7和Windows Server 2008 R2所提供的一种WLAN功能，具备两项主要功能：

第一、把一个物理无线网卡虚拟化成一个或多个虚拟无线网卡，称为虚拟的WiFi。

第二、借助无线网卡把当前接网络虚拟成为一个基于软件的无线接入点，称为虚拟AP或软AP。

=========================万恶的分割线===========================

项目需要包含wlanapi.h 头文件和wlanapi.lib 库

备注：测试环境win7_64,建议关闭一些安全软件，（比如我测试的时候忘了关comodo导致防火墙总是拒绝其他设备的连接）。

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功能不复杂，用到的主要函数有下面几个

1.调用WlanOpenHandled得到一个连接hClientHandle，下面的操作都要用到这个连接。当然程序退出的时候记得调用WlanCloseHandle关闭这个连接。

DWORD WINAPI WlanOpenHandle(  _In_        DWORD dwClientVersion,  _Reserved_  PVOID pReserved,  _Out_       PDWORD pdwNegotiatedVersion,  _Out_       PHANDLE phClientHandle);DWORD WINAPI WlanCloseHandle(  _In_        HANDLE hClientHandle,  _Reserved_  PVOID pReserved);

2.下面的函数用来设置承载网络的一些属性。

DWORD WINAPI WlanHostedNetworkSetProperty(  _In_        HANDLE hClientHandle,  _In_        WLAN_HOSTED_NETWORK_OPCODE OpCode,  _In_        DWORD dwDataSize,  _In_        PVOID pvData,  _Out_opt_   PWLAN_HOSTED_NETWORK_REASON pFailReason,  _Reserved_  PVOID pvReserved);typedef enum _WLAN_HOSTED_NETWORK_OPCODE {   wlan_hosted_network_opcode_connection_settings,          //设置一些连接属性  wlan_hosted_network_opcode_security_settings,            //设置安全属性  wlan_hosted_network_opcode_station_profile,              //query the wireless Hosted Network station profile  wlan_hosted_network_opcode_enable                        //query or set the wireless Hosted Network enabled flag} WLAN_HOSTED_NETWORK_OPCODE, *PWLAN_HOSTED_NETWORK_OPCODE;

3.启用和禁用无线承载网络。

打开网络和共享中心 单击更改适配器设置，如果启用了无线承载网络 面板里面就会有描述为Microsoft Virtual WiFi Miniport Adapter的一个虚拟网卡。禁用之后这个虚拟网卡就会消失了。

当然只有启用了无线承载网络才能分享wifi啦

DWORD WINAPI WlanHostedNetworkForceStart(  _In_        HANDLE hClientHandle,  _Out_opt_   PWLAN_HOSTED_NETWORK_REASON pFailReason,  _Reserved_  PVOID pvReserved);

DWORD WINAPI WlanHostedNetworkForceStop(  _In_        HANDLE hClientHandle,  _Out_opt_   PWLAN_HOSTED_NETWORK_REASON pFailReason,  _Reserved_  PVOID pvReserved);

4.连接和断开网络

DWORD WINAPI WlanHostedNetworkStartUsing(  _In_        HANDLE hClientHandle,  _Out_opt_   PWLAN_HOSTED_NETWORK_REASON pFailReason,  _Reserved_  PVOID pvReserved);

DWORD WINAPI WlanHostedNetworkStopUsing(  _In_        HANDLE hClientHandle,  _Out_opt_   PWLAN_HOSTED_NETWORK_REASON pFailReason,  _Reserved_  PVOID pvReserved);

5.用来查询承载网络的网络状况。

DWORD WINAPI WlanHostedNetworkQueryStatus(  _In_        HANDLE hClientHandle,  _Out_       PWLAN_HOSTED_NETWORK_STATUS *ppWlanHostedNetworkStatus,  _Reserved_  PVOID pvReserved);

typedef struct _WLAN_HOSTED_NETWORK_STATUS {  WLAN_HOSTED_NETWORK_STATE      HostedNetworkState;  GUID                           IPDeviceID;  DOT11_MAC_ADDRESS              wlanHostedNetworkBSSID;  DOT11_PHY_TYPE                 dot11PhyType;  ULONG                          ulChannelFrequency;  DWORD                          dwNumberOfPeers;            //已连接的节点数目  WLAN_HOSTED_NETWORK_PEER_STATE PeerList[1];                //存放节点信息的数组} WLAN_HOSTED_NETWORK_STATUS, *PWLAN_HOSTED_NETWORK_STATUS;typedef struct _WLAN_HOSTED_NETWORK_PEER_STATE {  DOT11_MAC_ADDRESS                   PeerMacAddress;        //节点设备的MAC地址  WLAN_HOSTED_NETWORK_PEER_AUTH_STATE PeerAuthState;            //节点的认证状态} WLAN_HOSTED_NETWORK_PEER_STATE, *PWLAN_HOSTED_NETWORK_PEER_STATE;

调用WlanHostedNetworkQueryStatus将得到一个WLAN_HOSTED_NETWORK_STATUS结构体，就可以查询一些网络基本信息了，比如dwNumberOfPeers连接到这个网络的节点数，PeerList数组存放着对应节点的详细信息，包括MAC地址和认证状态。

6.用来设置密码

注意密码长度必须 大于8 小于63 否则会调用失败

DWORD WINAPI WlanHostedNetworkSetSecondaryKey(  _In_        HANDLE hClientHandle,  _In_        DWORD dwKeyLength,  _In_        PUCHAR pucKeyData,  _In_        BOOL bIsPassPhrase,  _In_        BOOL bPersistent,  _Out_opt_   PWLAN_HOSTED_NETWORK_REASON pFailReason,  _Reserved_  PVOID pvReserved);

======================贴代码==========================

//WIFIMAIN.h  实现文件#pragma once#include #pragma comment(lib,"wlanapi.lib")// WIFIMAINclass WIFIMAIN : public CWnd{        DECLARE_DYNAMIC(WIFIMAIN)public:        WIFIMAIN();        virtual ~WIFIMAIN();protected:        DECLARE_MESSAGE_MAP()private:        bool allow;        bool start;        HANDLE hClient;public:        int Init(void);        int AllowHostedNetWork(void);        int DisallowHostedNetWork(void);        int StartHostedNetWork(void);        int StopHostedNetWork(void);        bool isStart(void);        bool isAllow(void);        int Resume(void);        int getpeernumber(void);        int SetKEY(CString key);        int SetSSID(CString ssidname);};

// WIFIMAIN.cpp : 实现文件//#include "stdafx.h"#include "wifi共享1028.h"#include "WIFIMAIN.h"// WIFIMAINIMPLEMENT_DYNAMIC(WIFIMAIN, CWnd)WIFIMAIN::WIFIMAIN(): allow(false), start(false){        Init();}WIFIMAIN::~WIFIMAIN(){        StopHostedNetWork();        WlanCloseHandle(hClient, NULL);}BEGIN_MESSAGE_MAP(WIFIMAIN, CWnd)END_MESSAGE_MAP()// WIFIMAIN 消息处理程序int WIFIMAIN::Init(void){        DWORD dwCurVersion = 0;    DWORD dwResult = 0;        dwResult = WlanOpenHandle(WLAN_API_VERSION, NULL, &dwCurVersion, &hClient);        if( ERROR_SUCCESS != dwResult )        {                return -1;        }        BOOL bIsAllow = true;    WLAN_HOSTED_NETWORK_REASON dwFailedReason;        dwResult = WlanHostedNetworkSetProperty(hClient,                                                                                        wlan_hosted_network_opcode_enable,                                                                                         sizeof(BOOL),                                                                                        &bIsAllow,                                                                                        &dwFailedReason,                                                                                        NULL);        if( ERROR_SUCCESS != dwResult )        {                return -2;        }                return 0;}int WIFIMAIN::AllowHostedNetWork(void){        PWLAN_HOSTED_NETWORK_REASON pFailReason = NULL;                DWORD dwResult= 0;        dwResult=WlanHostedNetworkForceStart(hClient,pFailReason,NULL);        if( dwResult != ERROR_SUCCESS )        {                return -1;        }        allow=true;        return 0;}int WIFIMAIN::DisallowHostedNetWork(void){        PWLAN_HOSTED_NETWORK_REASON pFailReason = NULL;        DWORD dwResult= 0;        dwResult=WlanHostedNetworkForceStop(hClient,pFailReason,NULL);        if( dwResult != ERROR_SUCCESS )        {                return -1;        }        allow=false;        return 0;}int WIFIMAIN::StartHostedNetWork(void){        PWLAN_HOSTED_NETWORK_REASON pFailReason = NULL;        DWORD dwResult= 0;        dwResult=WlanHostedNetworkStartUsing(hClient,pFailReason,NULL);        if( dwResult != ERROR_SUCCESS )        {                return -1;        }        start=true;        return 0;}int WIFIMAIN::StopHostedNetWork(void){        PWLAN_HOSTED_NETWORK_REASON pFailReason = NULL;        DWORD dwResult= 0;        dwResult=WlanHostedNetworkStopUsing(hClient,pFailReason,NULL);        if( dwResult != ERROR_SUCCESS )        {                return -1;        }        start=false;        return 0;}bool WIFIMAIN::isStart(void){        return start;}bool WIFIMAIN::isAllow(void){        return allow;}int WIFIMAIN::Resume(void){        DWORD dwResult = 0;            BOOL bIsAllow = false;    WLAN_HOSTED_NETWORK_REASON dwFailedReason;        dwResult = WlanHostedNetworkSetProperty(hClient,                                                                                        wlan_hosted_network_opcode_enable,                                                                                         sizeof(BOOL),                                                                                        &bIsAllow,                                                                                        &dwFailedReason,                                                                                        NULL);        if( ERROR_SUCCESS != dwResult )        {                return -2;        }                return 0;}int WIFIMAIN::getpeernumber(void){        PWLAN_HOSTED_NETWORK_STATUS ppWlanHostedNetworkStatus=NULL;        int retval = WlanHostedNetworkQueryStatus(hClient,&ppWlanHostedNetworkStatus,NULL);        if(  retval != ERROR_SUCCESS ){                return -1;        }        return ppWlanHostedNetworkStatus->dwNumberOfPeers;}int WIFIMAIN::SetKEY(CString key){        char chkey[64];        int index;        for(index=0; index
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