windows搜索usb设备c++代码-Go服务器开发

以下是一个使用 C++ 在 Windows 上搜索 USB 设备的示例代码：

#include <Windows.h>
#include <SetupAPI.h>
#include <iostream>

#pragma comment(lib, "setupapi.lib")

int main() {
    // 初始化设备信息列表
    HDEVINFO deviceInfoSet = SetupDiGetClassDevs(NULL, TEXT("USB"), NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);

    if (deviceInfoSet == INVALID_HANDLE_VALUE) {
        std::cout << "Failed to get device information set." << std::endl;
        return 1;
    }

    SP_DEVINFO_DATA deviceInfoData;
    ZeroMemory(&deviceInfoData, sizeof(SP_DEVINFO_DATA));
    deviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);

    // 遍历设备信息列表
    for (DWORD i = 0; SetupDiEnumDeviceInfo(deviceInfoSet, i, &deviceInfoData); ++i) {
        TCHAR deviceID[MAX_DEVICE_ID_LEN];
        if (CM_Get_Device_ID(deviceInfoData.DevInst, deviceID, MAX_PATH, 0) != CR_SUCCESS) {
            continue;
        }

        // 判断是否为 USB 设备
        DWORD capabilities;
        CM_Get_DevNode_Registry_Property(deviceInfoData.DevInst,
                                         CM_DRP_CAPABILITIES,
                                         NULL,
                                         reinterpret_cast<PBYTE>(&capabilities),
                                         sizeof(capabilities),
                                         0);
        if (!(capabilities & CM_DEVCAP_REMOVABLE)) {
            continue;
        }

        // 打印设备信息
        TCHAR friendlyName[MAX_PATH];
		TCHAR manufacturer[MAX_PATH];
		TCHAR description[MAX_PATH];

		if (SetupDiGetDeviceRegistryProperty(deviceInfoSet,
											 &deviceInfoData,
											 SPDRP_FRIENDLYNAME,
											 NULL,
											 reinterpret_cast<PBYTE>(friendlyName),
											 sizeof(friendlyName),
											 NULL)) {
			std::wcout << "Friendly Name: " << friendlyName << std::endl;
		}
		
		if (SetupDiGetDeviceRegistryProperty(deviceInfoSet,
                                             &deviceInfoData,
                                             SPDRP_MFG,
                                             NULL,
                                             reinterpret_cast<PBYTE>(manufacturer),
                                             sizeof(manufacturer),
                                             NULL)) {
            std::wcout << "Manufacturer: " << manufacturer << std::endl;
        }

        if (SetupDiGetDeviceRegistryProperty(deviceInfoSet,
                                             &deviceInfoData,
                                             SPDRP_DEVICEDESC,
                                             NULL,
                                             reinterpret_cast<PBYTE>(description),
                                             sizeof(description),
                                             NULL)) {
            std::wcout << "Description: " << description << std::endl;
        }
    }

    // 释放设备信息列表
    SetupDiDestroyDeviceInfoList(deviceInfoSet);

    return 0;
}

请注意，此代码使用了 Windows API 函数和结构体，并且需要链接 setupapi.lib 库。建议在 Visual Studio 等开发环境中进行编译和运行。

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