ILOG CPLEX .NET Reference Manual

Cplex.PresolveCallback Constructor 

Constructor for user-written presolve callback.

protected internal Cplex.PresolveCallback();

Remarks

This constructor can be called only to construct objects of derived user-written callback classes, but not to construct Cplex.PresolveCallback objects directly.

See Also

Cplex.PresolveCallback Class | ILOG.CPLEX Namespace