MovieExportFromProceduresToDataRef failing on Win98 with invalidMedia

Hello,

           

I am a windows programmer.

 

            I have developed an application to create to QuickTime mov, using the MovieExportFromProceduresToDataRef QuickTime function.

      I am trying to create a QT video from received sample

      It works perfectly ine on Win 2000, Win XP but not on Win 98. This function returns an with an error code of

      invalidMedia on Win 98.

      Is there something more to be done on Win 98.

 

I have QuickTime player 6 installed on Win 98, since QuickTime player 7 cannot be installed on Win 98. But I have built my application against QuickTime SDK 7. The graphics world created in the movie export operation is from a DIB bitmap. The properties of the bitmap are as follows:

 

BITMAPINFO bmpInfo;

ZeroMemory(&bmpInfo,sizeof(bmpInfo));

      bmpInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);

      bmpInfo.bmiHeader.biBitCount=32;

      bmpInfo.bmiHeader.biCompression=BI_RGB;

      bmpInfo.bmiHeader.biSizeImage= dwWidth  * dwHeight *4;

      bmpInfo.bmiHeader.biPlanes=1;

      bmpInfo.bmiHeader.biHeight= - dwHeight ;

      bmpInfo.bmiHeader.biWidth= dwWidth;

     

      HDC hdc=GetDC(hWnd);

      hBackDC=CreateCompatibleDC(hdc);

     

hBackBitmap=CreateDIBSection(hBackDC,&bmpInfo,DIB_RGB_COLORS,&pBits,NULL,NULL);

 

// now I create the GWorld as follows

 

if(NewGWorldFromHBITMAP(&m_gWorld,NULL,NULL,NULL,hBackBitmap,hBackDC)!=noErr)

      {

            _tcscpy(m_szErrMsg,_T("Unable to Create New Quick Time World From the Bitmap"));

            return E_FAIL;

      }

 

      GetGWorld(&m_savedPort,&m_savedGD);

SetGWorld(m_gWorld,NULL);

 

Can someone please tell me what is the mistake? I am using Sorenson Video codec as the movie component.

 

 

Please help

Bhavna