Arguments

Returns

t on success, or nil on failure.

Description

This function causes the DataHub instance to immediately stop sending echo and exception messages for the named point. It is possible that exceptions and echos which are queued to the task will arrive after this function is called, but the DataHub instance will not generate any new messages.

Example

Gamma> register_all_points(nil,t);
t
Gamma> b;
55
Gamma> unregister_point(#b);
t
Gamma> write_point(#b,33);
t
Gamma> write_point(#c,77);
t
Gamma> next_event();
nil
Gamma> b;
55
Gamma> c;
77
Gamma> 
		

See Also

register_point, register_all_points