CPXXgetnetcallbackfunc and CPXgetnetcallbackfunc

Accesses the user-written legacy callback routine to be called each time a log message is issued during the optimization of a network problem.

int CPXXgetnetcallbackfunc( CPXCENVptr env, int(CPXPUBLIC **callback_p)(CPXCENVptr, void *, int, void *), void ** cbhandle_p )

int CPXgetnetcallbackfunc( CPXCENVptr env, int(CPXPUBLIC **callback_p)(CPXCENVptr, void *, int, void *), void ** cbhandle_p )

Description

The CPXXgetnetcallbackfunc/CPXgetnetcallbackfunc accesses the user-written legacy callback routine to be called each time a log message is issued during the optimization of a network problem. If the display log is turned off, the callback routine is still called.

For documentation of the user-written network callback function, see CPXXsetnetcallbackfunc and CPXsetnetcallbackfunc.

Tip:

This routine is part of legacy callbacks. Do not use this routine with a generic callback in your application. For more about generic callbacks, see the topic Generic callbacks in the CPLEX User's Manual.

Arguments

env: A pointer to the CPLEX environment as returned by CPXXopenCPLEX/CPXopenCPLEX.
callback_p: The address of the pointer to the current user-written callback function. If no callback function has been set, the pointer evaluates to NULL.
cbhandle_p: The address of a variable to hold the private pointer of the user.

Return

A nonzero terminates the optimization.

Example


status = CPXgetnetcallbackfunc (env, mycallback, NULL);