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Development of new programs

Included with eComStation are the basic tools needed to develop new

programs. On the CD#3 you will find the Toolkits for Java (both the Java

1.1.8 and Java 1.3 versions) and the OS/2 Developers Toolkit (version

4.5). Also included with the system is the powerful REXX language,

which can be used to make text mode applications, or with some

extensions can also be used to develop PM applications (see below). If

you want to get started on development it is advisable to install the

toolkits, which will give you extensive information on all aspects of

programming for eComStation. If you are not interested in native

application development, but only Java development, installation of the

Java Toolkit would suffice.

There are no compilers or RAD (Rapid Application Development) tools

included with eComStation, but several good compilers and RAD tools

can be found on the internet, we will list a few of them here:

C/C++ Compilers:

! EMX GCC, the GNU Compiler Collection, including the EMX runtime

libraries that implement part of the standard UNIX functionality

! OpenWatcom, work in progress, the OpenSourced version of the

famous compiler from Watcom

Pascal Compilers:

Virtual Pascal, a free highly Borland Pascal/Delphi compatible

compiler with a Borland Pascal like development environment

! EMX GNU Pascal, part of the GNU Compiler Collection mentioned

above.

! Free Pascal: A free, Turbo Pascal 7 compatible compiler

BASIC Interpreters:

! QBasic, DOS version is included with eComStation. QBasic is an

BASIC interpreter only, you can't compile to a executable

! Liberty Basic, a commercial BASIC for Windows and OS/2, which can

also produce standalone programs

REXX extensions:

! VREXX: REXX extensions to develop PM applications with REXX

! DrDialog, RAD development tool for REXX which allows you to

develop PM applications, available on the IBM Developers' Toolbox.

Chapter 5: Getting Involved 31

Next to these there are several commercial development tools like

VisualAge for Java, VisualAge C++, Simplicity for Java, VisPro REXX,

etc, and there certainly are more free-, and shareware products out

there which we did not include in this list. A good place to start looking

for more free-, and shareware products is the /pub/os2/dev directory

of the Hobbes archive.

When you develop your own program you can of course use the

Adoption Process described earlier in this chapter to create an easy

method for installation. Otherwise you could use one of the other

Installers available for eComStation. A popular free installer for

eComStation is the "WarpIN installer", which can be found on the

Netlabs pages.

Links:

EDM/2 programmers magazine: http://www.edm2.com/

Netlabs: http://www.netlabs.org/

Hobbes ftp archive: http://hobbes.nmsu.edu/

OpenWatcom: http://www.openwatcom.org/

Virtual Pascal: http://www.vpascal.com/

Free Pascal: http://www.freepascal.org/

Liberty BASIC: http://world.std.com/~carlg/basic.html

IBM Developers' Toolbox:

http://www.developer.ibm.com/devcon/

eComStation Manual

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