音频设备输入名称被截断

Question

I'm trying to get the audio input device name with the code bellow:

WAVEINCAPS woc;
unsigned long iNumDevs = waveInGetNumDevs(); 
for (unsigned long i = 0; i < iNumDevs; i++) 
{ 
    if (!waveInGetDevCaps(i, &woc, sizeof(WAVEINCAPS))) 
    {
        devices.push_back(woc.szPname);
    } 
}

When i look in devices , there are all input devices names, but all names are truncated in 32 characters.

How can I get the complete name?

Answer 1

The szPname member of the WAVEINCAPS structure is limited to MAXPNAMELEN characters, which is defined as 32.

You could try enumerating using another technology that might not have this limitation, for example using DirectSound .