WSALookupServiceBegin 使用示例-Go服务器开发

下面是一个使用WSALookupServiceBegin函数进行服务搜索的示例代码：

#include <iostream>
#include <winsock2.h>
#include <ws2bth.h>
#pragma comment(lib, "ws2_32.lib")

int main()
{
    // 初始化Winsock库
    WSADATA wsaData;
    if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
    {
        std::cerr << "Failed to initialize Winsock" << std::endl;
        return -1;
    }

    // 创建查询参数
    WSAQUERYSETW querySet = { sizeof(WSAQUERYSETW) };
    querySet.dwNameSpace = NS_BTH;

    // 设置服务类别过滤器（如果需要）
    GUID serviceClassID = L2CAP_PROTOCOL_UUID;  // 替换为你要搜索的服务类别UUID
    querySet.lpServiceClassId = &serviceClassID;

    // 开始服务搜索
    HANDLE hLookup;
    DWORD result = WSALookupServiceBeginW(&querySet, LUP_CONTAINERS, &hLookup);
    
    if (result != ERROR_SUCCESS)
    {
        std::cerr << "Failed to begin service lookup: " << result << std::endl;
        WSACleanup();
        return -1;
    }

	// 枚举搜索结果
	WSAQUERYSETW results[10];
	DWORD bufferSize = sizeof(results);
	DWORD entriesReturned;

	result = WSALookupServiceNextW(hLookup, LUP_RETURN_NAME | LUP_RETURN_ADDR, &bufferSize,
		                           results, &entriesReturned);

	if (result == SOCKET_ERROR)
	{
		std::cerr << "Failed to get service information: " << WSAGetLastError() << std::endl;
		WSALookupServiceEnd(hLookup);
		WSACleanup();
		return -1;
	}

	for (DWORD i = 0; i < entriesReturned; ++i)
	{
	    std::wcout << "Service Name: " << results[i].lpszServiceInstanceName << std::endl;

	    // 获取设备地址信息
	    BTH_ADDR address = ((SOCKADDR_BTH*)results[i].lpcsaBuffer->RemoteAddr.lpSockaddr)->btAddr;
        unsigned char* byteAddress = (unsigned char*)&address;

        std::cout << "Device Address: ";
        for (int j = 5; j >= 0; --j)
        {
            printf("%02X", byteAddress[j]);
            if (j > 0)
                printf(":");
        }
        std::cout << std::endl;
    }

    // 关闭搜索句柄和清理资源
    WSALookupServiceEnd(hLookup);
    WSACleanup();

    return 0;
}

在此示例中，我们使用了Winsock库和Windows API来进行蓝牙服务的搜索。你需要替换 serviceClassID 的值为你要搜索的具体服务类别的UUID。

程序将列出所有匹配的服务名称及其对应设备的蓝牙地址。

请确保已正确安装并配置了开发环境，并根据项目需求进行相应修改和调整。

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