IltmmTargetFormat::CreateTargetFormats Example for C++

HRESULT CreateTargetFormats(IltmmCapture* pCapture) 
{ 
   IltmmTargetFormats*  pformats = NULL;  
   IltmmTargetFormat*   pformat  = NULL;  
   IUnknown* pDICOMFilter;  
   VARIANT_BOOL vb;  
 
   // get the target formats collection 
   HRESULT hr = pCapture->get_TargetFormats(&pformats);  
   if(FAILED(hr))  
      return hr;  
 
   // get the DICOM target format object 
   hr = pformats->Item(ltmmCapture_TargetFormat_DICOM, &pformat);  
   if(FAILED(hr))  
   { 
      // release the formats collection object 
      pformats->Release(); 
      return hr;  
   } 
 
   // get the UseFilterCache setting for the format 
   pformat->get_UseFilterCache(&vb);  
   // not set it to true 
   hr = pformat->put_UseFilterCache(VARIANT_TRUE);  
   if(FAILED(hr))  
   { 
      // release the format and collection objects 
      pformat->Release(); 
      pformats->Release(); 
      return hr;  
   } 
 
   /// get the multiplexer object for this format 
   hr = pformat->GetCacheObject(ltmmTargetFormat_Object_Mux, &pDICOMFilter);  
   if(FAILED(hr))  
   { 
      // release the format and collection objects 
      pformat->Release(); 
      pformats->Release(); 
      return hr;  
   } 
 
   // check to see if the format has a multiplexer dialog for settings 
   pformat->HasCacheDialog(ltmmTargetFormat_Dlg_Mux, &vb);  
 
   // if so, display it 
   if (vb == VARIANT_TRUE)  
      pformat->ShowCacheDialog(ltmmTargetFormat_Dlg_Mux, (long)NULL);  
 
   // release the objects 
   pformat->Release(); 
   pformats->Release(); 
   pDICOMFilter->Release(); 
 
   return S_OK;  
} 
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