ViewPoint Manual

Functional Description
ViewPoint Manual—426801-001
5-10
Define Process
You define background processes with the DP command and undefine them with the
UNDP command. Choose your own symbolic name for each process you define. Then,
to pass a command to a defined process, you simply enter the symbolic name of the
process followed by the command. Or, as usual for Compaq command interpreters, you
can enter only the symbolic name (and omit the command) to initiate passthrough mode,
in which the defined process issues its own prompt. In that case, you communicate
directly with that process through the in and out queues.
You can specify various options when you define a process: the capability to have
TACL interpret the function keys and intercept commands, and the ability to invoke a
specific macro each time the process is invoked.
As indicated in Figure 5-7, Define Process commands that relate to the queues include
commands that view the in or the out queues, obtain a count of the number of lines in
the queues, save the contents of the queues in a file or variable, and clear the queues.
Figure 5-7. Operator Access to Background Defined Processes
CDT057.cdd