Some important form terminology
The following terms are helpful in working with ETI form functions:
field-
an m x n block of form character positions
that ETI functions can manipulate as a unit
active field-
a field that is visited during form processing for data entry, change,
selection, and so forth
inactive field-
a field that is completely ignored during form processing, such as a title,
field marker or other label
dynamic field-
a field whose buffer grows beyond its original size if more data
is entered into the field than the original buffer will hold.
form-
a collection of one or more pages of fields
connecting fields to a form-
associating an array of field pointers with a form
page-
a logical subdivision of a form
usually occupying one screen
posting a form-
writing a form on its associated subwindow
unposting a form-
erasing a form from its associated subwindow
freeing a form-
deallocating the memory for a form and, as a by-product,
disconnecting the previously associated array of field pointers
from the form
freeing a field-
deallocating the memory for a field
NULL-
generic term for a null pointer cast to the type of the
particular object (field, form, and so on)
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What a typical form application program does
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Overview: writing form programs in ETI
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