Reads a chunk of data back into director as a string.
Usage:
ioRead (object me, integer size )
Parameters:
size (integer) - the number of bytes to read.
Returns:
(string) - binary string
Example:
xtRose = xtra("Rosetta").new( )
xtRose.ioOpen( "C:\mySavedData.dat", 1 )
nSize = xtRose.ioSize( )
strFile = xtRose.ioRead( nSize )
Notes:
After reading, the position is incremented to the size actually read