HP Data Entry and Forms Management System (VPLUS) Reference Manual (32209-90024)

Chapter 1 33
VPLUS Overview
Product Overview
useful to the application program. The data
transformations may be predefined for the entire buffer in
the forms file using FORMSPEC (the ARB). If
field-by-field movement is used, the transformation type is
specified by the intrinsic name.
Data Transformation These intrinsics gather data entered by the user at the
screen and transform it into the format most useful to the
application, or vice versa. Data passed to or from fields can
be converted to or from a variety of data types.
Status/Error Control These intrinsics set or capture error flags and display
messages.
Batch Data Collection These intrinsics open and close the batch file, write data to
the batch file, or read data from the batch file.
Figure 1-6. shows an overview of the various transfers between elements controlled by the
VPLUS intrinsics. Note that many applications use their own files or data bases rather
than the VPLUS batch file for the collected data.
Figure 1-6. Transfers Controlled by VPLUS Intrinsics
FORMS FILE
FORMS FILE
Form Definition
Data Buffer
Application
Program
Memory
Processing
Data
Forms
Forms
Data
Data