PWCT Features – Programming Scope
PWCT is a General Purpose Visual Programming System, we can use PWCT to create different types of
applications, and we can extend the system by supporting more textual programming languages to get
We can create large scale applications using PWCT, our project could be a group of sub projects
Each project or subproject could contains one or more of visual source files (*.SSF & *.FPT).
For example, a course management system developed using PWCT in 2011, contains 104 visual source
files (*.SSF) in the same project.
Fig. 1 List of *.SSF files in the Course Management System – Developed using PWCT.
Each visual source file could contain one or more of goals.
Each goal could contain one or more of functions/procedures.
Each goal could contain one or more of classes.
Each goal could generate one or more of text based source code files (This feature is very useful when we
use a visual programming language like CPWCT where we need to generate the source file (*.c) and the
header file (*.h) from the same visual source file (*.SSF) ).
Each goal could contain hundreds or thousands of steps.
You can create very large scale applications using PWCT, but you will need large space on your hard
disk, also break your project to more than one visual source file (Divide and Conquer) and avoid putting
thousands of steps in the same goal to get high performance, clear design. Also this gives the ability for
more than one programmer to work on the same project at the same time.
At the time of this writing (2013/09/28 10:11 PM), we have a collection of visual programming languages
inside PWCT to choose from as a tool for developing our applications.
Features & Usage
Very High level programming tool.
General Purpose programming tool
Imperative, Procedural, Object-Oriented
Create MS-Windows GUI applications
(Desktop & Client/Server).
Distribute standalone Executable files
Database : xBase (*.DBF) & (ADO)
You can use MS-Access, SQL Server,
MySQL & any database supported by
Sockets & Network Programming
Call DLL Functions .
OLE Automation .
Develop multiplatform (MS-DOS,
Windows, Linux & Mac OS X) console
Many templates to create object-oriented
database applications quickly.
Used for creating many projects like the
Supernova programming language,
Critical Nodes & Smart POS System.
Very simple visual programming
Learn some of the programming concepts
(Variables, Arrays, Control Structures,
Procedures, GUI & Event-Driven).
You can use it to create simple GUI
applications that work on Windows &
Low Level programming.
The power of the C programming
You can create programs that can be
compiled using any ANSI C compiler.
High Level Programming.
Get access to Python Libraries.
Create GUI Applications (Multiplatform).
Simple for CGI programming.
High Level Programming.
Get the power of the .NET Framework.
Table1. Visual Programming Languages inside PWCT
From the previous table, It is clear that we can do high level programming using visual languages like
(HarbourPWCT, SupernovaPWCT & PythonPWCT) and/or we can do low level programming using the
CPWCT visual programming language.
The next figure presents a steps tree while using the SupernovaPWCT visual programming language.
High level programming let the developer concentrate on the task, and get an easy to read and understand
Fig. 2 High level programming using SupernovaPWCT
The next figure presents a steps tree while using the CPWCT visual programming language.
A Low level programming language, give the programmer direct access to the machine resources like the
memory, for example the programmer can control the operations of allocating/freeing the memory and
can access data at the bit level.
CPWCT gives us the power of the C programming language but in a visual programming world where we
can see the program instructions as a tree of steps, we can avoid syntax errors, we don’t need to
remember many things, we can explore the language components.
Introducing the C programming language concepts to students could be a more fun in a visual
The productivity gain when we uses CPWCT, the ability to customize the environment and the flexibility
to create new visual components are attractive features for expert programmers to develop some of their
C programs using CPWCT.
Fig.3 Low Level programming using CPWCT
The next figures presents some of the free open source projects developed using PWCT
Fig. 4 SOMALI-QURAN.
Fig. 7 Super Programming Languages.
Smart POS System
Supernova programming Language
Table2. Open Source projects developed using PWCT.