获得从Windows完整的音频设备名称 [英] Get the full audio device name from Windows

问题描述

有没有办法在Windows XP中获得的完全音频设备名称，以后呢？

Is there a way to get the full audio device name in Windows XP and later?

我可以使用MIXERC​​APS但szPname成员将限制在32个字符（包括NULL）。对于麦克风（高清晰度音频设备）的音频设备名称，我只拿回麦克风（高清晰度澳元。这是由于MAXPNAMELEN被定义为32.我已经尝试过重新定义为更大的数字没有效果

I can use MIXERCAPS but the szPname member will limit to 32 characters (including NULL). For an audio device name of "Microphone (High Definition Audio Device)", I only get back "Microphone (High Definition Aud". This is due to MAXPNAMELEN being defined to 32. I have tried redefining it to a larger number to no effect.

下面是code我使用的：

Here is the code I am using:

MIXERCAPS mc;
ZeroMemory( &mc, sizeof(MIXERCAPS) );
mm = mixerGetDevCaps( reinterpret_cast<UINT_PTR>(m_hMixer), &mc, sizeof(MIXERCAPS) );

我看到这个问题，但它引用Vista和更高版本。

I saw this question, but it references Vista and later.

推荐答案

如果您使用经典的Windows多媒体接口你可能无法得到解决的MAXPNAMELEN限制，因为这是编译成Windows本身。

If you use the classic Windows Multimedia interface you probably can't get around the MAXPNAMELEN limitation, since that's compiled into Windows itself.

然而，你也许可以，如果你使用的DirectSound，而不是得到完整的设备名称。下面code是未经检验的，但我认为它应该工作。

However you might be able to get the full device name if you use DirectSound instead. The following code is untested but I think it should work.

BOOL CALLBACK EnumCallback(LPGUID guid, LPCSTR descr, LPCSTR modname, LPVOID ctx)
{
    std::vector<std::string> *names = (std::vector<std::string>*)ctx;
    names->push_back(std::string(descr));
    return TRUE;
}

int main()
{
    std::vector<std::string> names;
    if (!FAILED(DirectSoundEnumerate(&EnumCallback, &names)))
    {
        // do stuff
    }
}

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