Technical Articles

The Technical Articles section provides a wide variety of detailed technical content covering a wide area of material which has been written by our technical team members.

 


Running a Green Screen Application in Genero

Abstract

As we’ve described in other articles, there are many reasons to upgrade from Informix 4GL to Genero; however, it’s not always desirable to upgrade your entire application in one go from a Text User Interface (TUI) to a Graphical User Interface (GUI). This article focuses on how you can use Genero to run a green screen application in its native format, whilst allowing part of the same application to be rendered as a GUI application.


A Number of Reasons to Upgrade to the Latest Genero Release

Abstract

Originally developed as a GUI replacement to "green-screen" Informix 4GL, Genero has become a powerful and advanced development suite, with a long list of supported platforms, database engines and deployment options. A host of new features are added at every release; Whether you’re running an early version, still on 4gl, or looking for a platform for a new development project, there are some very compelling reasons to start using, the very latest version of Genero.


The Impact of DIRECT_IO and File System Caching

Abstract

This article follows on from the earlier TPC-C benchmarking performed on IDS 12.10, if you missed it, you can read it here. This article takes a view on the topic of DIRECT_IO and its use within IDS, it also highlights the impact of file system caching on Linux, which is relevant for those editions of Informix where DIRECT_IO cannot be used. Lastly, a ‘just for fun’ comparison of DIRECT_IO and RAW devices for readers to come to their own conclusions.


Little known IDS commands: genoncfg

Abstract

In this series of articles, we are exploring some of the lesser known, lost and forgotten commands buried away in your Informix bin directory. Today we’re going to have a closer look at the genoncfg utility. As the name suggests, this command generates a basic onconfig file for you, given a set of input parameters.


A Simple Informix ESQL-C Makefile

Abstract

If you’re building or fixing Informix ESQL-C applications then you’re almost guaranteed to come across the UNIX ‘make’ utility. This article describes a very simple Makefile for ESQL-C that can be adapted for many small projects.


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