我将尝试创建一个程序，用于分类所有连接的USB设备及其端口GUID。
我找到了一个示例，可以获取所有连接的输入设备的信息：
我找到了一个示例，可以获取所有连接的输入设备的信息：
#include <windows.h>
#include <iostream>
// Namespace
using namespace std;
// Main
int main()
{
// Program
cout << "USB Device Lister." << endl;
// Get Number Of Devices
UINT nDevices = 0;
GetRawInputDeviceList(NULL, &nDevices, sizeof(RAWINPUTDEVICELIST));
// Got Any?
if (nDevices < 1)
{
// Exit
cout << "ERR: 0 Devices?";
cin.get();
return 0;
}
// Allocate Memory For Device List
PRAWINPUTDEVICELIST pRawInputDeviceList;
pRawInputDeviceList = new RAWINPUTDEVICELIST[sizeof(RAWINPUTDEVICELIST) * nDevices];
// Got Memory?
if (pRawInputDeviceList == NULL)
{
// Error
cout << "ERR: Could not allocate memory for Device List.";
cin.get();
return 0;
}
// Fill Device List Buffer
int nResult;
nResult = GetRawInputDeviceList(pRawInputDeviceList, &nDevices, sizeof(RAWINPUTDEVICELIST));
// Got Device List?
if (nResult < 0)
{
// Clean Up
delete[] pRawInputDeviceList;
// Error
cout << "ERR: Could not get device list.";
cin.get();
return 0;
}
// Loop Through Device List
for (UINT i = 0; i < nDevices; i++)
{
// Get Character Count For Device Name
UINT nBufferSize = 0;
nResult = GetRawInputDeviceInfo(pRawInputDeviceList[i].hDevice, // Device
RIDI_DEVICENAME, // Get Device Name
NULL, // NO Buff, Want Count!
&nBufferSize); // Char Count Here!
// Got Device Name?
if (nResult < 0)
{
// Error
cout << "ERR: Unable to get Device Name character count.. Moving to next device." << endl << endl;
// Next
continue;
}
// Allocate Memory For Device Name
WCHAR* wcDeviceName = new WCHAR[nBufferSize + 1];
// Got Memory
if (wcDeviceName == NULL)
{
// Error
cout << "ERR: Unable to allocate memory for Device Name.. Moving to next device." << endl << endl;
// Next
continue;
}
// Get Name
nResult = GetRawInputDeviceInfo(pRawInputDeviceList[i].hDevice, // Device
RIDI_DEVICENAME, // Get Device Name
wcDeviceName, // Get Name!
&nBufferSize); // Char Count
// Got Device Name?
if (nResult < 0)
{
// Error
cout << "ERR: Unable to get Device Name.. Moving to next device." << endl << endl;
// Clean Up
delete[] wcDeviceName;
// Next
continue;
}
// Set Device Info & Buffer Size
RID_DEVICE_INFO rdiDeviceInfo;
rdiDeviceInfo.cbSize = sizeof(RID_DEVICE_INFO);
nBufferSize = rdiDeviceInfo.cbSize;
// Get Device Info
nResult = GetRawInputDeviceInfo(pRawInputDeviceList[i].hDevice,
RIDI_DEVICEINFO,
&rdiDeviceInfo,
&nBufferSize);
// Got All Buffer?
if (nResult < 0)
{
// Error
cout << "ERR: Unable to read Device Info.. Moving to next device." << endl << endl;
// Next
continue;
}
// Mouse
if (rdiDeviceInfo.dwType == RIM_TYPEMOUSE)
{
// Current Device
cout << endl << "Displaying device " << i + 1 << " information. (MOUSE)" << endl;
wcout << L"Device Name: " << wcDeviceName << endl;
cout << "Mouse ID: " << rdiDeviceInfo.mouse.dwId << endl;
cout << "Mouse buttons: " << rdiDeviceInfo.mouse.dwNumberOfButtons << endl;
cout << "Mouse sample rate (Data Points): " << rdiDeviceInfo.mouse.dwSampleRate << endl;
if (rdiDeviceInfo.mouse.fHasHorizontalWheel)
{
cout << "Mouse has horizontal wheel" << endl;
}
else
{
cout << "Mouse does not have horizontal wheel" << endl;
}
}
// Keyboard
else if (rdiDeviceInfo.dwType == RIM_TYPEKEYBOARD)
{
// Current Device
cout << endl << "Displaying device " << i + 1 << " information. (KEYBOARD)" << endl;
wcout << L"Device Name: " << wcDeviceName << endl;
cout << "Keyboard mode: " << rdiDeviceInfo.keyboard.dwKeyboardMode << endl;
cout << "Number of function keys: " << rdiDeviceInfo.keyboard.dwNumberOfFunctionKeys << endl;
cout << "Number of indicators: " << rdiDeviceInfo.keyboard.dwNumberOfIndicators << endl;
cout << "Number of keys total: " << rdiDeviceInfo.keyboard.dwNumberOfKeysTotal << endl;
cout << "Type of the keyboard: " << rdiDeviceInfo.keyboard.dwType << endl;
cout << "Subtype of the keyboard: " << rdiDeviceInfo.keyboard.dwSubType << endl;
}
// Some HID
else // (rdi.dwType == RIM_TYPEHID)
{
// Current Device
cout << endl << "Displaying device " << i + 1 << " information. (HID)" << endl;
wcout << L"Device Name: " << wcDeviceName << endl;
cout << "Vendor Id:" << rdiDeviceInfo.hid.dwVendorId << endl;
cout << "Product Id:" << rdiDeviceInfo.hid.dwProductId << endl;
cout << "Version No:" << rdiDeviceInfo.hid.dwVersionNumber << endl;
cout << "Usage for the device: " << rdiDeviceInfo.hid.usUsage << endl;
cout << "Usage Page for the device: " << rdiDeviceInfo.hid.usUsagePage << endl;
}
// Delete Name Memory!
delete[] wcDeviceName;
}
// Clean Up - Free Memory
delete[] pRawInputDeviceList;
// Exit
cout << endl << "Finnished.";
cin.get();
return 0;
}
我尝试将此代码转换为获取所有连接的USB设备，但失败了。因此，我的问题是收集所需数据的最佳方法是什么？