window 下蓝牙开发[通俗易懂]

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Jetbrains全家桶1年46，售后保障稳定

window 蓝牙开发资料真的是比较少，而且功能比较单一。使用window自带的蓝牙重连接真的是太慢了。找不到好的解决方法，很让人头痛呀！
下面提供的这点代码，也只是一个简单的功能，有这方面研究的朋友，希望能多多交流，多多指教

需要先包含几个头文件

#include <afxsock.h>
#include <ws2bth.h>
#include <BluetoothAPIs.h>
#pragma comment(lib,"Irprops.lib")
#include <string>
using namespace std;

Jetbrains全家桶1年46，售后保障稳定

ULONGLONG g_ulRemoteAddr = 0;
WCHAR strGUID[]=L"00001101-0000-1000-8000-00805f9b34fb";
CString g_strRecv = _T("");
SOCKET g_socketClient = INVALID_SOCKET;
CString g_strBthName=_T("");
BOOL g_bWaitRecvData=TRUE;
// CBlueToothTestDlg dialog
CBlueToothTestDlg::CBlueToothTestDlg(CWnd* pParent /*=NULL*/)
: CDialog(CBlueToothTestDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
m_bTestFinish = TRUE;
}
void CBlueToothTestDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_EDIT_SHOW, m_editShow);
DDX_Control(pDX, IDC_EDIT_INPUT, m_editInput);
DDX_Control(pDX, IDC_BUTTON_SEND, m_btnSend);
DDX_Control(pDX, IDC_BTN_OPEN, m_btnOpen);
DDX_Control(pDX, IDC_BTN_CLOSE, m_btnClose);
DDX_Control(pDX, IDC_CHECK_REPEATSEND, m_CheckRepeat);
}
BEGIN_MESSAGE_MAP(CBlueToothTestDlg, CDialog)
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_BUTTON_SEND, &CBlueToothTestDlg::OnBnClickedButtonSend)
ON_MESSAGE(WM_BLUETOOTH_MSG, &CBlueToothTestDlg::OnBlueToothMsg)
ON_BN_CLICKED(IDC_BTN_OPEN, &CBlueToothTestDlg::OnBnClickedBtnOpen)
ON_BN_CLICKED(IDC_BTN_CLOSE, &CBlueToothTestDlg::OnBnClickedBtnClose)
ON_WM_TIMER()
END_MESSAGE_MAP()
// CBlueToothTestDlg message handlers
CString string2CString(string strSrc)
{
CString strTarge = _T("");
TCHAR *pTemp = new TCHAR[strSrc.size() + 1];
if (NULL == pTemp)
{
return strTarge;
}
MultiByteToWideChar(0,
0,
strSrc.c_str(),
-1,
pTemp,
strSrc.size() + 1
);   
strTarge = pTemp;
if (NULL != pTemp)  
{
delete []pTemp;
pTemp = NULL; 
}
return strTarge;
}
CString TranslateErrorCode ( DWORD dwErrorCode )
{
CString csError;
LPVOID pv;
FormatMessage (
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
dwErrorCode,
MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),
(LPTSTR)&pv,
0,
NULL);
if(pv)
{
csError = (LPCTSTR)pv;
LocalFree ( pv );
}
CString strCode = _T("");
strCode.Format(_T("%ld"),dwErrorCode);
csError = strCode + _T(" : ") + csError;
return csError;
}
int GetGUID(WCHAR *psz, GUID *pGUID)
{
int data1, data2, data3;
int data4[8];
if (11 ==  swscanf(psz, L"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x\n",
&data1, &data2, &data3,
&data4[0], &data4[1], &data4[2], &data4[3], 
&data4[4], &data4[5], &data4[6], &data4[7])) {
pGUID->Data1 = data1;
pGUID->Data2 = data2 & 0xffff;
pGUID->Data3 = data3 & 0xffff;
for (int i = 0 ; i < 8 ; ++i)
pGUID->Data4[i] = data4[i] & 0xff;
return 0;
}
return -1;
}
int ReadBthSeqFile(CString strTempName)//读取序列号文件数据
{
strTempName = _T("bluetoothName.txt");
CStdioFile tempFile;
BOOL bRet = tempFile.Open(strTempName, CFile::modeReadWrite);
if (!bRet)
{        
return -1;
}
CString strReadLine=_T("");
int tempLength = 0;
while (1)
{
tempFile.ReadString(strReadLine);
tempLength += strReadLine.GetLength()+1;
if (strReadLine.GetLength() == 0)
break;
//AfxMessageBox(strReadLine);
g_strBthName = strReadLine;
}
tempFile.Close();
return 0;
}
int FindTargetBlueTooth()
{
int iFindRet = 0;
WSAQUERYSET wsaq;
HANDLE      hLookup =   NULL;
union
{
CHAR buf[5000];
double __unused; // ensure proper alignment
};
LPWSAQUERYSET pwsaResults = (LPWSAQUERYSET) buf;
DWORD dwSize = sizeof(buf);
memset(&wsaq,0,sizeof(wsaq));
wsaq.dwSize = sizeof(wsaq);
wsaq.dwNameSpace = NS_BTH;
wsaq.lpcsaBuffer = NULL;
if (ERROR_SUCCESS != WSALookupServiceBegin (&wsaq, LUP_CONTAINERS, &hLookup))
{
return 0;
}
ZeroMemory(pwsaResults, sizeof(WSAQUERYSET));
pwsaResults->dwSize = sizeof(WSAQUERYSET);
pwsaResults->dwNameSpace = NS_BTH;
pwsaResults->lpBlob = NULL;
BLUETOOTH_DEVICE_INFO bdi = { sizeof(BLUETOOTH_DEVICE_INFO) };
while (ERROR_SUCCESS == WSALookupServiceNext (hLookup, LUP_RETURN_NAME | LUP_RETURN_ADDR, &dwSize, pwsaResults))
{
// ASSERT (pwsaResults->dwNumberOfCsAddrs == 1);
ULONGLONG ulAddr =   ((SOCKADDR_BTH *)pwsaResults->lpcsaBuffer->RemoteAddr.lpSockaddr)->btAddr;
CString strName  =   pwsaResults->lpszServiceInstanceName;
if(strName == /*_T("HWAPP")*/g_strBthName)
{
g_ulRemoteAddr = ulAddr;
//获取其它信息
memset(&bdi,0,sizeof(BLUETOOTH_DEVICE_INFO));
bdi.Address.ullLong = ulAddr;
bdi.dwSize = sizeof(BLUETOOTH_DEVICE_INFO);//important
DWORD dwGetInfo = BluetoothGetDeviceInfo(NULL,&bdi);
if(ERROR_SUCCESS == dwGetInfo)
{
//类型
ULONG ulType = bdi.ulClassofDevice;//7936
//被记住 
BOOL bRemember = bdi.fRemembered;
//已配对
BOOL bPaired = bdi.fAuthenticated;
//已连接
BOOL bConnected = bdi.fConnected;
if(bPaired)
iFindRet = 1;
else
iFindRet = 2;
break;
}
else
{
AfxMessageBox(TranslateErrorCode(dwGetInfo));
}
}
}
WSALookupServiceEnd(hLookup);
return iFindRet;
}
UINT ScanBlueToothDeviceProc(LPVOID lpParam)
{
int iScanRet = FindTargetBlueTooth();//0表示没有发现，1表示发现且配对，2表示发现但未配对
CBlueToothTestDlg* pDlg = (CBlueToothTestDlg*)lpParam;
pDlg->PostMessage(WM_BLUETOOTH_MSG,1,iScanRet);
return 0;
}
UINT RecvMsgProc(LPVOID lpParam)
{
CBlueToothTestDlg* pDlg = (CBlueToothTestDlg*)lpParam;
char pbuf[MAX_MESSAGE_SIZE] = {
0};
while(1)
{
memset(pbuf,0,MAX_MESSAGE_SIZE);
int cbBytesRecd = recv (g_socketClient, pbuf, MAX_MESSAGE_SIZE, 0);
if (cbBytesRecd == SOCKET_ERROR) 
{
pDlg->PostMessage(WM_BLUETOOTH_MSG,2,0);
return WSAGetLastError();
}
else if(cbBytesRecd > 0)
{
string sRecv = pbuf;
g_strRecv = string2CString(sRecv);
pDlg->PostMessage(WM_BLUETOOTH_MSG,2,1);
g_bWaitRecvData = TRUE;
}
}
return 0;
}
UINT ConnectDeviceProc(LPVOID lpParam)
{
CBlueToothTestDlg* pDlg = (CBlueToothTestDlg*)lpParam;
g_socketClient = socket (AF_BTH, SOCK_STREAM, BTHPROTO_RFCOMM);
if (g_socketClient == INVALID_SOCKET) 
{
pDlg->PostMessage(WM_BLUETOOTH_MSG,3,1);
return 0;
}
GUID ServerGuid;
if(GetGUID(strGUID, &ServerGuid))
{
pDlg->PostMessage(WM_BLUETOOTH_MSG,3,2);
g_socketClient = INVALID_SOCKET;
return 0;
}
SOCKADDR_BTH sa;
memset (&sa, 0, sizeof(sa));
sa.addressFamily = AF_BTH;
sa.port = 6001;
sa.serviceClassId = ServerGuid;
sa.btAddr = g_ulRemoteAddr;
Sleep(200);
int iConnect = 0 ;
for (iConnect = 0 ; iConnect < 3 ; iConnect ++)//尝试连接3次
{
if (connect (g_socketClient, (SOCKADDR *)&sa, sizeof(sa)) == SOCKET_ERROR) 
{
DWORD dwError = GetLastError();
if(dwError == WSAETIMEDOUT)
{
pDlg->PostMessage(WM_BLUETOOTH_MSG,4,iConnect);
Sleep(200);
continue;
}
g_socketClient = INVALID_SOCKET;
AfxMessageBox(TranslateErrorCode(dwError));
pDlg->PostMessage(WM_BLUETOOTH_MSG,3,3);//其他错误
return 0;
}
else
break;
}
if(iConnect == 3)//超时错误
{
g_socketClient = INVALID_SOCKET;
pDlg->PostMessage(WM_BLUETOOTH_MSG,3,4);
}
else
pDlg->PostMessage(WM_BLUETOOTH_MSG,3,0);
return 0;
}
UINT TestConnectProc(LPVOID lpParam)
{
CBlueToothTestDlg* pDlg = (CBlueToothTestDlg*)lpParam;
int iFindBlueTooth = FindTargetBlueTooth();
if(iFindBlueTooth != 1)
{
pDlg->PostMessage(WM_BLUETOOTH_MSG,5,5);
return 0;
}
SOCKET sock = socket (AF_BTH, SOCK_STREAM, BTHPROTO_RFCOMM);
if (sock == INVALID_SOCKET) 
{
pDlg->PostMessage(WM_BLUETOOTH_MSG,5,1);
return 0;
}
GUID ServerGuid;
if(GetGUID(strGUID, &ServerGuid))
{
pDlg->PostMessage(WM_BLUETOOTH_MSG,5,2);
return 0;
}
SOCKADDR_BTH sa;
memset (&sa, 0, sizeof(sa));
sa.addressFamily = AF_BTH;
sa.port = 5001;
sa.serviceClassId = ServerGuid;
sa.btAddr = g_ulRemoteAddr;
Sleep(200);
int iConnect = 0 ;
for (iConnect = 0 ; iConnect < 6 ; iConnect ++)//尝试连接6次
{
if (connect (sock, (SOCKADDR *)&sa, sizeof(sa)) == SOCKET_ERROR) 
{
DWORD dwError = GetLastError();
if(dwError == WSAETIMEDOUT)
{
pDlg->PostMessage(WM_BLUETOOTH_MSG,6,iConnect);
Sleep(200);
continue;
}
AfxMessageBox(TranslateErrorCode(dwError));
pDlg->PostMessage(WM_BLUETOOTH_MSG,5,3);//其他错误
return 0;
}
else
break;
}
if(iConnect == 6)//超时错误
pDlg->PostMessage(WM_BLUETOOTH_MSG,5,4);
else
{
closesocket(sock);
pDlg->PostMessage(WM_BLUETOOTH_MSG,5,0);//能连接上
}
return 0;
}
BOOL CBlueToothTestDlg::OnInitDialog()
{
......
// TODO: Add extra initialization here
m_editInput.EnableWindow(FALSE);
m_btnSend.EnableWindow(FALSE);
m_btnOpen.EnableWindow(FALSE);
m_btnClose.EnableWindow(FALSE);
SetDlgItemText(IDC_STATIC_TIP,_T("正在检测蓝牙是否连接，请稍候..."));
// SetTimer(8,5000,NULL);
CString str=_T("");
ReadBthSeqFile(str);
AfxBeginThread(ScanBlueToothDeviceProc,this);
return TRUE;  // return TRUE unless you set the focus to a control
}
string CBlueToothTestDlg::CString2string(CString str)
{
string strTarge = "";
int nLength = str.GetLength();
int nBytes = WideCharToMultiByte(0,0,str,nLength,NULL,0,NULL,NULL);
char* VoicePath = new char[ nBytes + 1];
memset(VoicePath,0,nLength + 1);
WideCharToMultiByte(0, 0, str, nLength, VoicePath, nBytes, NULL, NULL); 
VoicePath[nBytes] = 0;
strTarge = VoicePath;
return strTarge;
}
void CBlueToothTestDlg::OnBnClickedButtonSend()
{
// TODO: Add your control notification handler code here
CString strInput = _T("");
GetDlgItemText(IDC_EDIT_INPUT,strInput);
BYTE m_pucPackBuffer[] = {
0xd1, 0xee, 0x16, 0x00, 0xe9, 0xff, 0xf7, 0x01, 0x09, 
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0x43, 0x00, 0x00, 0x80, 0x3f, 
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7a, 0x44, 0x60, 0x02};
UINT uiIsCheck = m_CheckRepeat.GetState();
if (uiIsCheck)///主要是用于测试蓝牙盒子的通讯能力
{
strInput=m_pucPackBuffer;
while (1)
{
if (g_bWaitRecvData)
{
int iSend = send (g_socketClient, (const char *)m_pucPackBuffer, 31, 0);
DWORD dwError = GetLastError();
if((iSend == 31) && (dwError == 0))
AppendShowMsg(strInput, 1);
else
AfxMessageBox(strInput+TranslateErrorCode(dwError));
g_bWaitRecvData = FALSE;
}
}       
}
else
{
if(strInput.GetLength())
{
string strToSend = CString2string(strInput);
int iSend = send (g_socketClient, strToSend.c_str(), strToSend.length(), 0);
DWORD dwError = GetLastError();
if((iSend == strInput.GetLength()) && (dwError == 0))
AppendShowMsg(strInput,1);
else
AfxMessageBox(strInput+TranslateErrorCode(dwError));
}
}
}
LRESULT CBlueToothTestDlg::OnBlueToothMsg(WPARAM wParam,LPARAM lParam)
{
int iMsgType = (int)wParam;
int iMsgValue = (int)lParam;
if(iMsgType == 1)//扫描蓝牙，结果0表示没有发现，1表示发现且配对，2表示发现但未配对
{
switch (iMsgValue)
{
case 0:
SetDlgItemText(IDC_STATIC_TIP,_T("未发现目标蓝牙设备！"));            break;
case 1:
SetDlgItemText(IDC_STATIC_TIP,_T("已发现目标蓝牙设备，点击Connect按钮来连接蓝牙"));
m_btnOpen.EnableWindow(TRUE);
break;
case 2:
SetDlgItemText(IDC_STATIC_TIP,_T("已发现目标蓝牙设备，但未连接，请手动连接后再试"));           break;
default:break;
}   
}
else if(iMsgType == 2)//接收数据
{
if(iMsgValue == 0)
SetDlgItemText(IDC_STATIC_TIP,_T("接收消息出错，接收线程退出，可能是连接已断开"));
else if(iMsgValue == 1)
AppendShowMsg(g_strRecv,2);
}
else if(iMsgType == 3)//连接蓝牙设备
{
switch (iMsgValue)
{
case 0:
SetDlgItemText(IDC_STATIC_TIP,_T("初始化通信完成，现在可以收发数据"));
SetDlgItemText(IDC_EDIT_INPUT,_T("FoxwellGT80"));
m_editInput.EnableWindow(TRUE);
m_btnSend.EnableWindow(TRUE);
AfxBeginThread(RecvMsgProc,this);
m_btnOpen.EnableWindow(FALSE);
m_btnClose.EnableWindow(TRUE);
break;
case 1:
SetDlgItemText(IDC_STATIC_TIP,_T("初始化套接字失败！"));         break;
case 2:
SetDlgItemText(IDC_STATIC_TIP,_T("获取GUID失败！"));         break;
case 3:
SetDlgItemText(IDC_STATIC_TIP,_T("连接目标蓝牙设备失败！"));           break;
case 4:
SetDlgItemText(IDC_STATIC_TIP,_T("连接目标蓝牙设备失败！")+TranslateErrorCode(WSAETIMEDOUT));          break;
default:            break;
}   
}
else if(iMsgType == 4)//超时重试提示
{
CString strTimeOut = _T("");
strTimeOut.Format(_T("连接超时，重试中...%d"),iMsgValue+1);
SetDlgItemText(IDC_STATIC_TIP,strTimeOut);
}
else if(iMsgType == 5)//测试连接蓝牙设备
{
m_bTestFinish = TRUE;
CTime tm = CTime::GetCurrentTime();
CString strTime = _T("");
strTime.Format(_T("%.2d%.2d%.2d"),tm.GetHour(),tm.GetMinute(),tm.GetSecond());
switch (iMsgValue)
{
case 0:
SetWindowText(_T("蓝牙检测：已连接") + strTime);            break;
case 1:
SetWindowText(_T("蓝牙检测：初始化套接字失败") + strTime);           break;
case 2:
SetWindowText(_T("蓝牙检测：获取GUID失败！") + strTime);          break;
case 3:
SetWindowText(_T("蓝牙检测：其他错误！") + strTime);          break;
case 4:
SetWindowText(_T("蓝牙检测：连接超时，可能已断开") + strTime);         break;
case 5:
SetWindowText(_T("蓝牙检测：未连接") + strTime);            break;
default:break;
}           
}
else if(iMsgType == 6)//测试连接超时重试提示
{
CString strTimeOut = _T("");
strTimeOut.Format(_T("蓝牙检测：重试中...%d"),iMsgValue+1);
SetWindowText(strTimeOut);
}
return 0;
}
void CBlueToothTestDlg::AppendShowMsg(CString strNewMsg, int iType)
{
if(iType == 1)
strNewMsg = _T("Req: ") + strNewMsg;
else if(iType == 2)
strNewMsg = _T("Ans: ") + strNewMsg;
else if(iType == 3)
strNewMsg = _T("Sys: ") + strNewMsg;
CString strHave = _T("");
GetDlgItemText(IDC_EDIT_SHOW,strHave);
if(strHave.GetLength())
strHave = strHave + _T("\r\n") + strNewMsg;
else
strHave = strNewMsg;
SetDlgItemText(IDC_EDIT_SHOW,strHave);
m_editShow.PostMessage(WM_VSCROLL,SB_BOTTOM,0);
if(iType == 2)//自动发送
{
CString strInput = strNewMsg;
if(strInput.GetLength())
{
strInput = _T("FOXWELL_") + strInput;
string strToSend = CString2string(strInput);
int iSend = send (g_socketClient, strToSend.c_str(), strToSend.length(), 0);
DWORD dwError = GetLastError();
if((iSend == strInput.GetLength()) && (dwError == 0))
{
AppendShowMsg(strInput,1);
}
else
AfxMessageBox(TranslateErrorCode(dwError));
}
}
}
/******************************************************************************\ 获取字符串形式的蓝牙地址 蓝牙地址 BLUETOOTH_ADDRESS 定义如下 union { BTH_ADDR ullLong; BYTE rgBytes[6]; }; BTH_ADDR 是一个 64 位的整数 假定蓝牙地址为 12:34:56:78:9A:BC 则 ullLong 为 0x0000123456789ABC rgBytes 的内容为 BC 9A 78 56 34 12 \******************************************************************************/
CString CBlueToothTestDlg::AddrToStr(const void*pAddr)
{
CString sAddress;
if(pAddr)
{
BLUETOOTH_ADDRESS Address;
int         nBytes  =   sizeof(Address.rgBytes);
TCHAR       szByte[8];
const BYTE* pByte   =   (const BYTE*)pAddr + (nBytes - 1);
for(int i = 0;i < nBytes;i++)
{
_stprintf(szByte,_T(":%02x"),*pByte--);
sAddress   +=   i ? szByte : (szByte + 1);
}
}
return sAddress;
}
void CBlueToothTestDlg::OnBnClickedBtnOpen()
{
// TODO: Add your control notification handler code here
SetDlgItemText(IDC_STATIC_TIP,_T("正在初始化通信，请稍候..."));
AfxBeginThread(ConnectDeviceProc,this);
}
void CBlueToothTestDlg::OnBnClickedBtnClose()
{
// TODO: Add your control notification handler code here
m_btnOpen.EnableWindow(TRUE);
m_btnClose.EnableWindow(FALSE);
m_editInput.EnableWindow(FALSE);
m_btnSend.EnableWindow(FALSE);
closesocket(g_socketClient);
g_socketClient = INVALID_SOCKET;
}
void CBlueToothTestDlg::OnTimer(UINT_PTR nIDEvent)
{
// TODO: Add your message handler code here and/or call default
if(m_bTestFinish && (g_ulRemoteAddr != 0))
{
m_bTestFinish = FALSE;
SetWindowText(_T("蓝牙检测：开始检测"));
AfxBeginThread(TestConnectProc,this);
}
CDialog::OnTimer(nIDEvent);
}

最后释放，放入销毁函数内例如（BOOL CXXXApp::ExitInstance()）

WSACleanup();