急问：VC如何得到声卡和摄像头的设备名？
rt，用VC如何得到声卡和摄像头的设备名称？ 问题点数：50、回复次数：2Top
1 楼laiyiling（陌生人[MVP]）回复于 2006-03-04 09:00:27 得分 0
DirectShow SDK文档里有代码
http://www.codeproject.com/directx/Mpeg2WavConversion.aspTop
2 楼laiyiling（陌生人[MVP]）回复于 2006-03-04 09:04:10 得分 0
// Create the System Device Enumerator.
HRESULT hr;
ICreateDevEnum *pSysDevEnum = NULL;
hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
IID_ICreateDevEnum, (void **)&pSysDevEnum);
// Obtain a class enumerator for the video compressor category.
IEnumMoniker *pEnumCat = NULL;
hr = pSysDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory, &pEnumCat, 0);
//根据音频和视频的不通修改上面函数的第一个参数
if (hr == S_OK)
{
// Enumerate the monikers.
IMoniker *pMoniker;
ULONG cFetched;
while(pEnumCat->Next(1, &pMoniker, &cFetched) == S_OK)
{
IPropertyBag *pPropBag;
pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pPropBag);
// To retrieve the friendly name of the filter, do the following:
VARIANT varName;
VariantInit(&varName);
hr = pPropBag->Read(L"FriendlyName", &varName, 0);
if (SUCCEEDED(hr))
{
// Display the name in your UI somehow.
}
VariantClear(&varName);
// To create an instance of the filter, do the following:
IBaseFilter *pFilter;
pMoniker->BindToObject(NULL, NULL, IID_IBaseFilter, (void**)&pFilter);
// Now add the filter to the graph. Remember to release pFilter later.
// Clean up.
pPropBag->Release();
pMoniker->Release();
}
pEnumCat->Release();
}
pSysDevEnum->Release();
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