Kbase P3403: How to convert a TTY Application to Windows GUI
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
30/06/2009 |
|
Status: Verified
GOAL:
How to convert a TTY Application to Windows GUI
FACT(s) (Environment):
Windows
All Supported Operating Systems
Progress/OpenEdge Product Family
OpenEdge Category: Language (4GL/ABL)
FIX:
To properly convert an existing character application to a GUI application involves moving from the procedural paradigm to the event driven one. That means the recreation of the user interface using the AppBuilder.
Given that the business logic is already written in the character application, it is a straight forward matter for a developer familiar with both the procedural and event driver programming models to convert the application without any major problems.
There is no tool to automate this process as it actually requires the dissembling of the application from its character model and reassembling it to fit the new GUI paradigm. Although this is not a trivial exercise, it is not a very complicated one either.