// GETTING INFO ABOUT THE CD-R DISC INSERTED INTO THE CD-R/CD-RW WRITER DEVICE


// A) PROTOTYPES TO PUT INTO THE HEADER:

   HINSTANCE MMC1DllHandle; 
   bool ( __stdcall *pfnFFAspiStart )( HWND );
   char* ( __stdcall *pfnFFDiscInfo )( HWND, int, int, int );
   void ( __stdcall *pfnFFAspiStop )( void );


// B) SOURCE CODE TO PUT INTO CPP FILE:

// load MMC1DLL.DLL
   MMC1DllHandle = LoadLibrary ( "MMC1DLL.DLL" );
   if ( MMC1DllHandle == 0 )
      {
        MessageBox ( NULL, "LoadLibrary:\nMMC1DLL.DLL not found.",
                           "Error FS 001", MB_SYSTEMMODAL );
        return;
      }

// load FFAspiStart address
   pfnFFAspiStart = ( bool ( __stdcall *)( HWND ) )
      GetProcAddress ( MMC1DllHandle, "FFAspiStart" );
   if ( pfnFFAspiStart == NULL )
      {
        MessageBox ( NULL, "GetProcAddress:\nFFAspiStart not found.",
                           "Error FS 002", MB_SYSTEMMODAL );
        return;
      }

// load FFDiscInfo address
   pfnFFDiscInfo = ( char* ( __stdcall *)( HWND, int, int, int ) )
      GetProcAddress ( MMC1DllHandle, "FFDiscInfo" );
   if ( pfnFFDiscInfo == NULL )
      {
        MessageBox ( NULL, "GetProcAddress:\nFFDiscInfo not found.",
                           "Error FS 003", MB_SYSTEMMODAL );
        return;
      }

// load FFAspiStop address
   pfnFFAspiStop = ( void ( __stdcall *)( void ) )
      GetProcAddress ( MMC1DllHandle, "FFAspiStop" );
   if ( pfnFFAspiStop == NULL )
      {
        MessageBox ( NULL, "GetProcAddress:\nFFAspiStop not found.",
                           "Error FS 004", MB_SYSTEMMODAL );
        return;
      }

// check ASPI support
   if ( pfnFFAspiStart ( Application -> Handle ) == false )
      {
        MessageBox ( NULL, "No ASPI support.",
                           "Error FS 005", MB_SYSTEMMODAL );
        return;
      }

// get disc info 
// -- parameters:
// -- 1st parm: handle to the window of the calling program
// -- 2nd parm: host adapter Id (usually 0)
// -- 3rd parm: CD-R writer SCSI Id
// -- 4th parm: CD-R writer SCSI LUN (usually 0)
   char* info;
   info = pfnFFDiscInfo ( Application -> Handle, 0, 2, 0 );
   MessageBox ( 0, info, "Disc Information Block:", MB_SYSTEMMODAL );

// stop ASPI support
   pfnFFAspiStop ( );

// unload the DLL
   FreeLibrary ( MMC1DllHandle );