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LEADTOOLS Multimedia API Help

IltmmAudioInput::get_Bass Example for C

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void IltmmAudioInput_get_Bass_Example (IltmmCapture* pCapture)
{
   IltmmAudioInputs *pAudioInputs = NULL; 

   HRESULT hr = IltmmCapture_get_AudioInputs(pCapture, &pAudioInputs); 

   if (SUCCEEDED(hr) && pAudioInputs) 
   {
      long lCount, i; 

      IltmmAudioInputs_get_Count(pAudioInputs, &lCount); 

      for (i = 0; i < lCount; i++)
      {
         IltmmAudioInput *pAudioInput = NULL; 

         hr = IltmmAudioInputs_Item(pAudioInputs, i, &pAudioInput); 

         if (SUCCEEDED(hr) && pAudioInput) 
         {
            BSTR bstrName, bstrFriendlyName; 
            VARIANT_BOOL vrtEnable, vrtMono, vrtLoudness; 
            double dTrebleRange, dBassRange, dMixLevel, dPan, dTreble, dBass; 
            long lCurrentIndex; 

            IltmmAudioInput_get_Name(pAudioInput, &bstrName); 

            IltmmAudioInputs_Find(pAudioInputs, bstrName, &lCurrentIndex); 

            if (lCurrentIndex != i) 
               MessageBox(NULL, "Index not found", NULL, MB_OK); 

            IltmmAudioInput_get_FriendlyName(pAudioInput, &bstrFriendlyName); 

            IltmmAudioInput_put_Enable(pAudioInput, VARIANT_TRUE); 
            IltmmAudioInput_put_Mono(pAudioInput, VARIANT_FALSE); 
            IltmmAudioInput_put_MixLevel(pAudioInput, 1.0); 
            IltmmAudioInput_put_Pan(pAudioInput, 0.0); 
            IltmmAudioInput_put_Loudness(pAudioInput, VARIANT_TRUE); 

            IltmmAudioInput_get_TrebleRange(pAudioInput, &dTrebleRange); 
            IltmmAudioInput_put_Treble(pAudioInput, dTrebleRange / 2.0); 

            IltmmAudioInput_get_BassRange(pAudioInput, &dBassRange); 
            IltmmAudioInput_put_Bass(pAudioInput, dBassRange / 2.0); 

            IltmmAudioInput_get_Enable(pAudioInput, &vrtEnable); 
            IltmmAudioInput_get_Mono(pAudioInput, &vrtMono); 
            IltmmAudioInput_get_MixLevel(pAudioInput, &dMixLevel); 
            IltmmAudioInput_get_Pan(pAudioInput, &dPan); 
            IltmmAudioInput_get_Loudness(pAudioInput, &vrtLoudness); 
            IltmmAudioInput_get_Treble(pAudioInput, &dTreble); 
            IltmmAudioInput_get_Bass(pAudioInput, &dBass); 
            
            SysFreeString(bstrName); 
            SysFreeString(bstrFriendlyName); 

            IltmmAudioInput_Release(pAudioInput); 
         }
      }

      IltmmAudioInputs_Release(pAudioInputs); 
   }
}
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