Prompter windows
Sometimes tHermes needs information which may not be related to the
execution of a particular task.
In such a case it can pop up a prompter window.
A prompter window consists of three lines on the screen; the first and third
line are part of the window's frame. See example.
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The top line contains the prompt, telling the user what kind of input is
expected.
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In the second line the user can type the information, terminated with a
RETURN. Editing functions are available
here. This line may already contain a default. To accept the default,
only RETURN need to be typed.
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The bottom line can display some feedback text, e.g. a result or an error message.
When the user does not want to respond immediately to the prompt, he can shift
the `keyboard focus' away from the prompter window by typing CTRL-O.
In this way he can do something else first.
A prompter window can be deleted by typing CTRL-C in it.