Gamma: Version 4.0
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XVIII. Cascade DataHub

Table of Contents
add_exception_function, add_echo_function -- assign functions for exceptions or echoes on a point.
lock_point -- locks or unlocks points.
point_locked -- indicates if a point is locked.
point_nanoseconds -- gives the nanoseconds from point_seconds that a point value changed.
point_seconds -- gives the time the point value changed.
point_security -- gives the security level of a point.
read_existing_point, read_point -- retrieve points.
register_all_points -- registers an application to receive exceptions for all points.
register_exception -- not yet documented.
register_point, register_existing_point -- register an application to receive exceptions for a single point.
remove_echo_function -- removes an echo function from a symbol.
remove_exception_function -- removes an exception function from a symbol.
secure_point -- alters the security level on a point.
set_domain -- sets the default domain for future calls.
set_security -- changes the security level for the current process.
unregister_point -- stops echo and exception message sending.
when_echo_fns, when_exception_fns -- indicate the functions for echos or exceptions on a point.
write_existing_point, write_point -- write point values.

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