• LinkRead[link] reads one expression from the specified MathLink connection.
• LinkRead[link, h] wraps h around the expression read before evaluating it.
• LinkRead will wait until it has read a complete expression before returning.
• You can test whether an expression is ready to be read from a particular link using LinkReadyQ
• You can use LinkRead[link, Hold] to get an expression from a link without evaluating it.
• New in Version 3.