C++ 枚举摄像头

C++ 枚举摄像头

转至https://www.cnblogs.com/herd/p/9277402.html

#include<iostream>
#include <strmif.h>
#include <initguid.h>
#include<vector>
#include<string>

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

using namespace std;

#define VI_MAX_CAMERAS 20
DEFINE_GUID(CLSID_SystemDeviceEnum, 0x62be5d10, 0x60eb, 0x11d0, 0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86);
DEFINE_GUID(CLSID_VideoInputDeviceCategory, 0x860bb310, 0x5d01, 0x11d0, 0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86);
DEFINE_GUID(IID_ICreateDevEnum, 0x29840822, 0x5b84, 0x11d0, 0xbd, 0x3b, 0x00, 0xa0, 0xc9, 0x11, 0xce, 0x86);

//列出硬件设备
int listDevices(vector<string>& list)
{
	ICreateDevEnum* pDevEnum = NULL;
	IEnumMoniker* pEnum = NULL;
	int deviceCounter = 0;
	CoInitialize(NULL);

	HRESULT hr = CoCreateInstance(
		CLSID_SystemDeviceEnum,
		NULL,
		CLSCTX_INPROC_SERVER,
		IID_ICreateDevEnum,
		reinterpret_cast<void**>(&pDevEnum)
	);

	if (SUCCEEDED(hr))
	{
		hr = pDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory, &pEnum, 0);
		if (hr == S_OK) {

			IMoniker* pMoniker = NULL;
			while (pEnum->Next(1, &pMoniker, NULL) == S_OK)
			{
				IPropertyBag* pPropBag;
				hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag,
					(void**)(&pPropBag));

				if (FAILED(hr)) {
					pMoniker->Release();
					continue; // Skip this one, maybe the next one will work.
				}

				VARIANT varName;
				VariantInit(&varName);
				hr = pPropBag->Read(L"Description", &varName, 0);
				if (FAILED(hr))
				{
					hr = pPropBag->Read(L"FriendlyName", &varName, 0);
				}

				if (SUCCEEDED(hr))
				{
					hr = pPropBag->Read(L"FriendlyName", &varName, 0);
					int count = 0;
					char tmp[255] = { 0 };
					while (varName.bstrVal[count] != 0x00 && count < 255)
					{
						tmp[count] = (char)varName.bstrVal[count];
						count++;
					}
					list.push_back(tmp);
				}

				pPropBag->Release();
				pPropBag = NULL;
				pMoniker->Release();
				pMoniker = NULL;

				deviceCounter++;
			}

			pDevEnum->Release();
			pDevEnum = NULL;
			pEnum->Release();
			pEnum = NULL;
		}
	}
	return deviceCounter;
}



int main()
{
	vector<string> CameraName;//存储摄像头名称
	int num = listDevices(CameraName);
	cout << "摄像头个数：" << num << endl;
	for (int i = 0; i < num; i++) {
		cout << " ID: " << i << " : " << " Name: " << CameraName[i] << endl;
	}

	//waitKey(0);
	system("pause");
	return 0;
}

C#枚举摄像头

nuget添加Aforge.Video.DirectShow引用或者Accord.Video.DirectShow

 FilterInfoCollection f = new FilterInfoCollection(FilterCategory.VideoInputDevice);
foreach(FilterInfo item in f)
{
    Console.WriteLine(item.Name);
}