| Overview | Group | Index | Concepts | 
The routine CPXaddchannel instantiates a new channel
 object.
Example
mychannel = CPXaddchannel (env);
See also lpex5.c in the CPLEX User's Manual.
| env | A pointer to the CPLEX environment as returned by   | 
CPXaddchannel returns a pointer to the new channel object; otherwise, it returns NULL.