Null character transmission in QTcpSocket

[borisbn]

1. what is a barr ?
2. try

qint64 QIODevice::writeData ( const char * data, qint64 maxSize )

instead of write function
3. try to write byte by byte like this

for ( int i = 0; i < 10; i++ )
{
    tcpSocket->write( &arr[ i ], 1 );
}

for ( int i = 0; i < 10; i++ )
{
    tcpSocket->write( &arr[ i ], 1 );
}

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4. How do you see, that not all of written bytes are received ?