bool readField(int recno);

Function readField() reads a single field to internal memory block.
After reading you can use functions getString(), getValue(), getDateTime(), getTicks(), getMemoBuf()

{
    // your code
    for( int row = 0; row < dbf.recCount()-1; row++ )
    {
        dbf.readField(row, field);
        // your code
    }
}