|
|
本帖最后由 zhuwg 于 2022-9-11 22:37 编辑
我随便找了一段代码，实测可以正常获取pid和gid，
但有个问题，如果安装了超过一台打印机看怎么识别
- // usb.cpp : Defines the entry point for the console application.
- //
- #include "stdafx.h"
- #include <windows.h>
- #include <cstdio>
- #include <iostream>
- #include <algorithm>
- #include <vector>
- #include <atlstr.h>
- #include <strmif.h>
- #include <setupapi.h>
- #include <initguid.h>
- #pragma comment(lib,"setupapi.lib")
- #pragma comment(lib,"strmiids.lib")
- using namespace std;
- DEFINE_GUID(CLSID_SystemDeviceEnum, 0x62be5d10, 0x60eb, 0x11d0, 0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86);
- DEFINE_GUID(GUID_DEVINTERFACE_HID, 0x4D1E55B2, 0xF16F, 0x11CF, 0x88, 0xCB, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30);
- //存放设备的PID VID DEVID信息;
- typedef struct _DevInfo
- {
- int nPID;
- int nVID;
- int nDevId;
- }DevInfo, * pDevInfo;
- std::vector<DevInfo> vecDevInfo;
- //获取所有设备的PID_VID Begin
- HRESULT EnumAllDevices()
- {
- int nRet = -1;
- // 初始化当前线程上的COM库
- CoInitialize(NULL);
- ICreateDevEnum* pDevEnum = NULL;
- // 创建与指定的类标识符关联的类的单个未初始化对象。
- HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, // 用于创建对象的数据和代码关联的类标识符
- NULL, CLSCTX_INPROC_SERVER, IID_ICreateDevEnum, (LPVOID*)&pDevEnum);
- if (SUCCEEDED(hr))
- {
- IEnumMoniker* pEnumMon = NULL;
- hr = pDevEnum->CreateClassEnumerator(GUID_DEVINTERFACE_HID, &pEnumMon, 0);
- if (hr == S_OK)
- {
- pEnumMon->Reset();
- ULONG cFetched = 0;
- IMoniker* pMoniker = NULL;
- while (hr = pEnumMon->Next(1, &pMoniker, &cFetched), hr == S_OK)
- {
- IPropertyBag* pProBag = NULL;
- hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (LPVOID*)&pProBag);
- if (SUCCEEDED(hr))
- {
- OLECHAR* pName = NULL;
- hr = pMoniker->GetDisplayName(NULL, NULL, &pName);
- if (SUCCEEDED(hr))
- {
- CString szTemp;
- BSTR bsTemp = SysAllocString(pName); // 分配内存
- szTemp = bsTemp;
- SysFreeString(bsTemp);
- pName = NULL;
- //解析字符串
- szTemp.Delete(0, szTemp.Find(_T("#")) + 1);
- szTemp.Delete(szTemp.Find(_T("#")), 1000);
- szTemp.Delete(17, 1000);
- //获取PID VID
- int VID = 0, PID = 0;
- szTemp.MakeUpper();
- sscanf(szTemp.Mid(13, 4), _T("%X"), &PID);
- sscanf(szTemp.Mid(4, 4), _T("%X"), &VID);
- DevInfo stDevinfo;
- stDevinfo.nPID = PID;
- stDevinfo.nVID = VID;
- //设备ID号，从0开始
- vecDevInfo.push_back(stDevinfo);
- nRet = 0;
- }
- pProBag->Release();
- }
- pMoniker->Release();
- }
- pEnumMon->Release();
- }
- }
- CoUninitialize();
- return nRet;
- }
- int _tmain(int argc, _TCHAR* argv[])
- {
- EnumAllDevices();
- for (int i = 0; i < (int)vecDevInfo.size(); i++)
- {
- std::cout << "VID: " << vecDevInfo[i].nVID << " PID: " << vecDevInfo[i].nPID << std::endl;
- }
- system("pause");
- return 0;
- }
|
|
[复制链接]
IP卡
狗仔卡
发表于 2022-9-8 17:15:35
显身卡
楼主
