Reference Manual
Extending
x-4gl
Table of contents:
The Power-4gl functions are contained in a few 4gl and c modules. Included in
this manual are detailed programmer descriptions of the most essential entities
in the Power-4gl tool kit, including some programming examples. The descriptions
are categorized as follows:
- Menu
functions offer an alternative to the horizontal menu system
included in Informix-4gl.
- Pick-list
functions provide an essential tool for modern user interfaces.
Full featured pick-lists are effortlessly produced to view database tables.
- Report
functions supply tools to produce reports that appear on screen
as horizontally and vertically scrollable documents.
- Screen
handling functions are underlying functions that handle screen
objects, which the menu, pick-list and report functions use extensively.
- Conversion
functions are routines that perform various conversions of data.
- Mathematics
functions contain assorted calculation routines.
- String
handling functions manipulate text strings.
- Interface
functions are programmer definable functions that mold the user
interface objects to the particular system, thus representing the system
dependent aspects of Power-4gl.
- Text
tables are editable flat files that contain the language
dependent aspects of Power-4gl. A default set of text tables is supplied in
English that can be altered and added to by the programmer.
Power-4gl main page