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Tech Arsenal 1
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Tech Arsenal (Arsenal Computer).ISO
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SAMPLES.DOC
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1992-01-06
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We at Sub Rosa Publishing are pleased to enclose a set of demonstration
programs. These programs have been prepared with two objectives in mind:
1. Illustrate important VP-Info commands and functions.
2. Provide starting points for your applications. Our examples
range from simple to elaborate.
A convenient way to examine these programs is to run the tutorial
program SAMPLES, which will "walk" you through them. To run DEMOS
enter VP-Info and then enter DO SAMPLES.
MENU1.PRG: demonstrates the use of the MENU() function to choose between
courses of action. One natural way to build applications is
to lay out the menus and implement the options one at a time.
MENU illustrates how to branch based not only on the selection
made, but also on the key used to make the selection.
MENU2.PRG: a more elaborate menu program with a more polished look,
MENU2 also responds to the keystrokes used to choose from
the menu.
MENUSAVE.PRG: another menu program introducing two new features added to
Info in 1992. Choices can be made by letter as well as number.
Also, MENUSAVE features a time-out option which triggers a
default choice after waiting a prescribed number of seconds
for a user to make a choice.
EDBROW.PRG: demonstrates the use of the EDIT and BROWSE commands.
These commands are the basic methods to view data. Edit
views a single record on the screen. BROWSE views several
records, one line on the screen per record.
ONFIELD.PRG: demonstrates the use of the ON FIELD structure to validate
input and control the order of field entry.
MEMBERS.PRG: a good starting point for your list maintenance programs-
shows how to add new names and update current names on a list.
SRILOGON.PRG: a sample start-up screen creates large letters out of
rectangular blocks.
DATES.PRG: illustrates the variety of date and time formats available.
RELATION.PRG: sets up a simple relation between two data files.
APPFROM.PRG: illustrates the APPEND FROM command.
ONELABEL.PRG: a short program to print labels of any length (one across).
This program can be used as is for simple label tasks.
VECTOR.PRG: illustrates the technique of accessing data field by number
rather than by name.
FILTERCR.PRG: a sample program that reads ASCII files and writes out a
modified form.
BIT.PRG: illustrates bit arithmetic in VP-Info. Computer Science teachers
will like this one.
LAB_GEN.PRG: a more complex label program with lots of features.