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Mathematica

The Mathematica Book

Mathematica Reference Guide

Listing of C Functions in the MathLink Library

MLAbort

int MLAbort is a global variable set when a program created using mcc or mprep has been sent an abort interrupt.

LinkInterrupt[link] can be used to send an abort interrupt from Mathematica to a program connected to a particular link.

See The Mathematica Book: Section 2.12.13.