Rebol Programming/read-io

= USAGE: = READ-IO port buffer length

= DESCRIPTION: = Low level read from a port.

READ-IO is a native value. = ARGUMENTS =
 * port -- Already opened port to read from. (Type: port)
 * buffer -- Buffer to which to append data. (Type: any-string)
 * length -- Maximum number of chars to read. (Type: number)

= SOURCE CODE = read-io: native[ "Low level read from a port." port [port!] "Already opened port to read from." buffer [any-string!] "Buffer to which to append data." length [number!] "Maximum number of chars to read." ]