How to get the Windows Experience Index

21 10 2009

Description

 

 

The Windows Experience Index measures the capability of your computer’s hardware and software configuration and expresses this measurement as a number called a base score. A higher base score generally means that your computer will perform better and faster than a computer with a lower base score. How shall we calculate this base score?

BaseScore

HowCanIDoIt1

 

 

Windows Vista provides WinSAT (Windows System Assessment Tool) APIs to assesses the performance characteristics and capabilities of a computer. IProvideWinSATResultsInfo interface gives information about an assessment.

MyCodeSnippet

 

 

void CsliderctrlDlg::OnBnClickedButton2()
{
   HRESULT hr = S_OK;
   IQueryRecentWinSATAssessment* pAssessment;
   IProvideWinSATResultsInfo* pResults = NULL;
   float baseScore = 0.0;
   WINSAT_ASSESSMENT_STATE state;
   CoInitialize(NULL);
   hr = CoCreateInstance(__uuidof(CQueryWinSAT),
      NULL,
      CLSCTX_INPROC_SERVER,
      __uuidof(IQueryRecentWinSATAssessment),
      (void**)&pAssessment);
   if (SUCCEEDED(hr))
   {
      hr = pAssessment->get_Info(&pResults);
      if (SUCCEEDED(hr))
      {
         hr = pResults->get_AssessmentState(&state);
         if (SUCCEEDED(hr))
         {
            switch(state)
            {
            case WINSAT_ASSESSMENT_STATE_UNKNOWN:
               wprintf(L”The state of the assessment is unknown.\n”);
               break;
            case WINSAT_ASSESSMENT_STATE_VALID:
            case WINSAT_ASSESSMENT_STATE_INCOHERENT_WITH_HARDWARE:
               hr = pResults->get_SystemRating(&baseScore);
               if (SUCCEEDED(hr))
               {
                  wprintf(L”The base score for the computer is %.1f\n”, baseScore);
                  if (WINSAT_ASSESSMENT_STATE_INCOHERENT_WITH_HARDWARE == state)
                  {
                     wprintf(L”Note that the hardware configuration of the computer has changed\n”
                        L”since the assessment was run; the score reflects the prior configuration.”);
                  }
               }
               else
               {
                  // Handle error
               }
               break;
            case WINSAT_ASSESSMENT_STATE_NOT_AVAILABLE:
               wprintf(L”A formal assessment has not run on the computer.\n”);
               break;
            case WINSAT_ASSESSMENT_STATE_INVALID:
               wprintf(L”The assessment data is not valid.\n”);
               break;
            default:
               wprintf(L”The assessment state value is not valid.\n”);
            }
         }
         else
         {
            // Handle error
         }
         pResults->Release();
         pResults = NULL;
      }
      else
      {
         // Handle error
      }
      pAssessment->Release();
      pAssessment = NULL;
   }
   else
   {
      // Handle error
   }
}
#include  "Winsatcominterfacei.h"
void CsliderctrlDlg::OnBnClickedButton2()
{
   HRESULT hr = S_OK;
   IQueryRecentWinSATAssessment* pAssessment;
   IProvideWinSATResultsInfo* pResults = NULL;
   float baseScore = 0.0;
   WINSAT_ASSESSMENT_STATE state;

   CoInitialize(NULL);
   hr = CoCreateInstance(__uuidof(CQueryWinSAT),
      NULL,CLSCTX_INPROC_SERVER,
      __uuidof(IQueryRecentWinSATAssessment),
      (void**)&pAssessment);

   if (SUCCEEDED(hr))
   {
      hr = pAssessment->get_Info(&pResults);
      if (SUCCEEDED(hr))
      {
         hr = pResults->get_AssessmentState(&state);
         if (SUCCEEDED(hr))
         {
            switch(state)
            {
            case WINSAT_ASSESSMENT_STATE_UNKNOWN:
               wprintf(L"The state of the assessment is unknown.\n");
               break;

            case WINSAT_ASSESSMENT_STATE_VALID:
            case WINSAT_ASSESSMENT_STATE_INCOHERENT_WITH_HARDWARE:
               hr = pResults->get_SystemRating(&baseScore);
               if (SUCCEEDED(hr))
               {
                  wprintf(L"The base score for the computer is %.1f\n", baseScore);
                  if (WINSAT_ASSESSMENT_STATE_INCOHERENT_WITH_HARDWARE == state)
                  {
                     wprintf(L"Note that the hardware configuration of the computer has changed\n"
                        L"since the assessment was run; the score reflects the prior configuration.");
                  }
               }
               else
               {  // Handle error  }
               break;
             case WINSAT_ASSESSMENT_STATE_NOT_AVAILABLE:
               wprintf(L"A formal assessment has not run on the computer.\n");
               break;
            case WINSAT_ASSESSMENT_STATE_INVALID:
               wprintf(L"The assessment data is not valid.\n");
               break;
            default:
               wprintf(L"The assessment state value is not valid.\n");
            }
        }
         else
         {
            // Handle error
         }
         pResults->Release();
         pResults = NULL;
      }
      else
      {
         // Handle error
      }
      pAssessment->Release();
      pAssessment = NULL;
   }
   else
   {
      // Handle error
   }
}

Courtesy : MSDN

mynote9

 

 

 

Don’t forget,  its applicable only to Windows Vista and higher versions.

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2 responses

17 07 2013
http://www.purevolume.com/lupepisces3/posts/4466659

Fantastic site. A lot of useful info here. I’m sending it to a few buddies ans also sharing in delicious. And obviously, thank you for your sweat!

17 07 2013
Sanoop S P

Thank you

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