WIN10 + VS2015 看不惯用VC6.0的老古董们写的代码,自己写的,这是微软Windows SDK API 示例代码改编的
#include
#include
#include
#include
using namespace std;
#pragma comment(lib,"comsuppw")
#pragma comment(lib, "strmiids")
#pragma comment(lib, "ole32")
#pragma comment(lib, "oleaut32")
HRESULT EnumerateDevices(REFGUID category, IEnumMoniker **ppEnum)
{
// Create the System Device Enumerator.
ICreateDevEnum *pDevEnum;
HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, nullptr,
CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pDevEnum));
if (SUCCEEDED(hr))
{
// Create an enumerator for the category.
hr = pDevEnum->CreateClassEnumerator(category, ppEnum, 0);
if (hr == S_FALSE)
{
hr = VFW_E_NOT_FOUND; // The category is empty. Treat as an error.
}
pDevEnum->Release();
}
return hr;
}
void DisplayDeviceInformation(IEnumMoniker *pEnum,vector& list)
{
IMoniker *pMoniker = nullptr;
while (pEnum->Next(1, &pMoniker, nullptr) == S_OK)
{
IPropertyBag *pPropBag;
HRESULT hr = pMoniker->BindToStorage(nullptr,nullptr, IID_PPV_ARGS(&pPropBag));
if (FAILED(hr))
{
pMoniker->Release();
continue;
}
VARIANT var;
VariantInit(&var);
// Get description or friendly name.
hr = pPropBag->Read(L"Description", &var, nullptr);
if (FAILED(hr))
{
hr = pPropBag->Read(L"FriendlyName", &var, nullptr);
}
if (SUCCEEDED(hr))
{
std::string name = _com_util::ConvertBSTRToString(var.bstrVal);
// printf("%s\n", name.c_str());//设备名称
list.push_back(name);
VariantClear(&var);
}
hr = pPropBag->Write(L"FriendlyName", &var);
// WaveInID applies only to audio capture devices.
hr = pPropBag->Read(L"WaveInID", &var, nullptr);
if (SUCCEEDED(hr))
{
// printf("WaveIn ID: %d\n", var.lVal);设备ID
VariantClear(&var);
}
hr = pPropBag->Read(L"DevicePath", &var, nullptr);
if (SUCCEEDED(hr))
{
// The device path is not intended for display.
// printf("Device path: %S\n", var.bstrVal);
VariantClear(&var);
}
pPropBag->Release();
pMoniker->Release();
}
}
void GetCameraName(vector& list)
{
HRESULT hr = CoInitializeEx(nullptr, COINIT_MULTITHREADED);
if (SUCCEEDED(hr)){
IEnumMoniker *pEnum;
hr = EnumerateDevices(CLSID_VideoInputDeviceCategory, &pEnum);
if (SUCCEEDED(hr)){
DisplayDeviceInformation(pEnum,list);
pEnum->Release();
}
//麦克风...........
// hr = EnumerateDevices(CLSID_AudioInputDeviceCategory, &pEnum);
// if (SUCCEEDED(hr)){
// DisplayDeviceInformation(pEnum,list);
// pEnum->Release();
// }
CoUninitialize();
}
}
void test01()
{
vector list;
GetCameraName(list);
for(int i=0;i