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Using Mute with ltmfCapture Example for C++

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void SetCaptureVolumeMuteBalance(IltmfCapture *pCapture)
{
      VARIANT_BOOL vrtMute;
      long lVol, lBalance;
      // unmute it if currently muted
      pCapture->get_Mute(&vrtMute);
      if (vrtMute == VARIANT_TRUE)
         pCapture->put_Mute(VARIANT_FALSE);
      
      // adjust the volume
      pCapture->get_Volume(&lVol);
      if (lVol == 0)
         pCapture->put_Volume(-10000);
      // adjust the balance
      pCapture->get_Balance(&lBalance);
      if (lBalance != 0)
         pCapture->put_Balance(0);
}