I am basically writing a bunch of qint32 values to a binary file and I want to be able to seek to an offset of the file and read a value back. So I am doing the following for writing and reading:

Qt Code: 
  1. QFile file( "MyFile" );
  2.     if( file.open( QFile::WriteOnly | QFile::Truncate ) )
  3.     {
  4.         for( int i = 0; i < 10; i++ )
  5.         {
  6.             qint32 exampleNum = 42;
  7.             file.write( ( char * )( &exampleNum ), sizeof( exampleNum) );
  8.         }
  9.         file.close();
  10.     }
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Qt Code: 
  1. QFile file( "MyFile" );
  2.     if( file.open( QFile::ReadOnly ) )
  3.     {
  4.         if( file.seek( 4) )
  5.         {
  6.             char * dataRead = new char[ sizeof( qint32 ) ];
  7.             qint64 numBytesRead = file.read( dataRead, sizeof( qint32 ) );
  8.             if( numBytesRead == sizeof( qint32 ) )
  9.             {
  10.                 QByteArray dataBytes( dataRead );
  11.                 bool ok = false;
  12.                qint32 value = dataBytes.toInt( &ok ); // "value" ends up 0
  13.                 if( ok )
  14.                 {
  15.                     cout << value; // never gets here
  16.                 }
  17.             }
  18.         }
  19.     }
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Seem to be having trouble reading a value back...