bitmap.width = (int)//whatever number you like!

out << (bitmap.width      );
out << (bitmap.width >>  8);
out << (bitmap.width >> 16);
out << (bitmap.width >> 24);

char meas[4];
in.get(meas[0]);  //All 4 bytes I put in
in.get(meas[1]);
in.get(meas[2]);
in.get(meas[3]);

// write little-endian 4-byte integer
// MAKE SURE stream is opened in BINARY mode!
void write_int_le4( ostream& outs, int value )
  {
  for (int n = 0; n < 4; n++, value >>= 8)
    outs.put( (unsigned char)value );
  }

// read little-endian 4-byte integer
// MAKE SURE stream is opened in BINARY mode!
int read_int_le4( istream& ins )
  {
  int result = 0;
  unsigned char c;
  for (int n = 0; n < 4; n++)
    {
    ins.get( c );
    result = (result << 8) + c;
    }
  return result;
  }