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OS/2 Shareware BBS: 10 Tools
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IOC
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HELLO2
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README
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1995-06-09
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***************************************************************************
* HELLO WORLD SAMPLE PROGRAM - Version 2: Readme File readme *
* *
* COPYRIGHT: Copyright(C) International Business Machines Corp.,1992,1995.*
* *
* DISCLAIMER OF WARRANTIES: *
* The following [enclosed] code is sample code created by IBM *
* Corporation. This sample code is not part of any standard IBM product*
* and is provided to you solely for the purpose of assisting you in the *
* development of your applications. The code is provided "AS IS", *
* without warranty of any kind. IBM shall not be liable for any damages*
* arising out of your use of the sample code, even if they have been *
* advised of the possibility of such damages. *
***************************************************************************
Hello World
These samples, which begin with hello1 and increase in complexity and
function up to hello6, progressively demonstrate many of the
capabilities of the User Interface Class Library.
o "Hello World 1"
o "Hello World 2"
o "Hello3"
o "Hello4"
o "Hello5"
o "Hello World 6"
Hello World 2
DESCRIPTION:
The second version of Hello World replaces the trivial
implementation of hello1 with a more common programming approach.
The frame window used in the main portion of the application is a
subclass of IFrameWindow that has a static text control and a new
status area at the bottom of the frame which is created using the
IInfoArea class. The specification for this new frame window
class is stored separately in a C++ file with an extension of
.hpp. Also, text strings are stored outside the application in a
.rc resource file.
Visually, however, the hello1 and hello2 samples are identical
except for the information area.
PROJECT LOCATION:
Inside the IOC Samples folder (inside the VisualAge C++ Samples
folder).
SOURCE FILE LOCATION:
X:\ibmcpp\samples\ioc\hello2
where X: is the drive you installed the samples and document
component of VisualAge C++.
HOW TO RUN THE SAMPLE:
FROM WITHIN THE WORKFRAME ENVIRONMENT:
To run the prebuilt project, open the Samples folder on your
OS/2 desktop then double-click on the project's icon to open
the project view of the sample. Click on the RUN button of
the project's toolbar.
FROM THE COMMAND LINE:
Simply type the name of the .EXE file, that is:
HELLO2
If the sample fails to execute or abnormally ends, you can
get more information about the failure by turning on the
ICLUI trace. This is done by setting the environment
variable ICLUI_TRACE as follows:
set ICLUI_TRACE=ON
set ICLUI_TRACETO=STDERR
The second export controls where the trace information is
reported. With tracing turned on, ICLUI exception text will
be written to a standard error file. For example:
hello1 >hello1.out 2>&1
The exception data is now in the file hello1.out.
HOW TO BUILD THE SAMPLE PROJECT YOURSELF:
FROM WITHIN THE WORKFRAME ENVIRONMENT:
Open the Samples folder on your OS/2 desktop then
double-click on the project's icon to open the project view
of the sample. In the upper half of the project window you
will see the icons of the files associated with the sample.
From the Project pulldown, select Build -> Rebuild All. To run
the sample project, see HOW TO RUN THE SAMPLE PROJECT above.
FROM THE COMMAND LINE:
- A command file is provided to allow rebuilding of the
WorkFrame projects from the command line. Simply type:
BUILD
To run the sample project, see HOW TO RUN THE SAMPLE PROJECT
above.
- The sample application can also be built by entering:
NMAKE
with no options while in the directory containing the
sample application files. The makefile is named
Makefile
To clean up the files generated from running make, enter:
NMAKE CLEAN
while in the directory containing the sample program files.
SOFTWARE/HARDWARE PREREQUISITES:
o IBM VisualAge C++
o OS/2 2.1 or Warp
o IBM or compatible 386 and up.
ADDITIONAL INFORMATION:
o For more information on the creation and use of projects in
the WorkFrame environment, see the VisualAge C++ for OS/2
User's Guide.
o For more information on the User Interface Classes, see the
VisualAge C++ for OS/2 Open Class Library User's Guide.
Both books can be found online. To access an online book, simply
open the main VisualAge C++ desktop folder, then open the
Information Folder inside. To view a book, double-click on that
book's icon.
REQUIRED FILES - HELLO2:
README
description and instructions for sample
BUILD.CMD
command file for building in project form from the command line
HELLO2.EXE
sample's executable
AHELLOW2.CPP
source code for main() and AHelloWindow class
AHELLOW2.HPP
class header file for AHellowWindow
AHELLOW2.H
symbolic definition file
AHELLOW2.RC
resource file
AHELLOW2.ICO
icon file
MAKEFILE
make file to build the sample program