Realbasic Serial Communication
From Wikipedia, the free encyclopedia
The REALbasic IDE running on Windows Vista | |
Developer(s) | REAL Software, Inc. |
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Stable release | 2010 Release 1 / February 9, 2010; 30 day(s) ago |
Operating system | Mac OS X, Microsoft Windows, Linux |
Type | Programming |
License | Proprietary |
Website | http://www.realsoftware.com |
REALbasic (RB) is an object-oriented dialect of the BASIC programming language developed and commercially marketed by REAL Software, Inc of Austin, Texas for Mac OS X, Microsoft Windows, and 32-bit x86 Linux.
Realbasic Serial Communication Rs232 Adapter; Serial Communication Ppt; Rs232 Communication Program; Rs232 Serial Port Communication; Serial.
Contents
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History
REALbasic was created by Andrew Barry. It was originally called CrossBasic due to its ability to compile the same programming code for Mac OS and Java (although the integrated development environment was Mac only). In 1997 CrossBasic was purchased by FYI Software which renamed it REALbasic as well as renaming the company REAL Software. At this time they dropped the Java target, later replacing it with a Windows target and database support. The IDE is now available for Microsoft Windows, Mac OS X, and 32-bit x86 Linux and can compile applications for Windows (Windows 2000 and higher), Mac OS X (PowerPC, Intel, and Universal Binary) and 32-bit x86 Linux.
With 2010 Release 1, the IDE has been renamed REAL Studio. The programming language itself will remain REALbasic.
Language features
RB is a strongly typed language with minimal automatic type conversion, which supports single inheritance and interfaces, classmethods and class properties, automatic memory management via reference counting, and operator overloading. A very important feature is the ability to extend (not just inherit from) existing classes, like Objective-C Categories. This considerably reduces the need for the Abstract Factory Pattern, which complicates using Application Frameworks in Java and C++. REALbasic also includes delegates, introspection, and namespace support, which allows modules to contain classes, interfaces and other modules.
Framework features
As described in the language reference, its built-in framework supports (REAL Software 2008):
- dictionaries,
- declarations to external libraries (dll, dylib)
- Visual Basic datatypes compatibility,
- full Unicode support,
- regular expressions,
- application programming interface calls to compiled C libraries on all supported platforms,
- ActiveX and basic OLE support (on Windows); COM objects are not fully supported,
- Notification icons (on Windows),
- Windows registry (on Windows),
- cooperative threads,
- scripting language embedded in REALbasic programs through RBScript,
- XML parsing and generation,
- console and service application support (Professional edition only)
- Apple events (on Mac),
- Address book (on Mac),
- Keychain (on Mac),
- Spotlight (on Mac),
- QuickTime (on Mac and Windows),
- sound,
- real-time 3D graphics,
- serial communications,
- sockets (both TCP, UDP and Inter-process_communication),
- SSL (Professional edition only),
- HTTP, POP3, SMTP and SOAP
The framework functionality can also be extended by creating plugins using the Plugin SDK provided by REAL Software. Plugins are created using C/C++ with a variety of supported compilers, including Xcode, Microsoft Visual Studio and gcc. Plugins can support any platform REALbasic supports, but are not required to support all platforms.
File format
The source file format contains window and control placement data and is proprietary, although XML import and export are supported. All source code can be contained in one project file, but it is also possible to have classes/modules in separate files in the same way as most other languages or dialects can. REALbasic compiles directly to machine language for each platform that it supports. REALbasic 2006 Release 3 and newer also supports a human-readable version control format which allows easy collaboration with tools such as Subversion or CVS.
Current editions of IDE
There are three versions of the IDE:
- REAL Studio has all features of the Professional edition plus other features for full-time programmers.
- The professional edition can compile programs for Mac OS X (PowerPC Carbon Mach-O, i386 Carbon Mach-O and Universal Binary), Linux and Windows from the same source code file; it can also access databases (REAL Server,MySQL,Oracle, PostgreSQL, ODBC, etc.) including the built-in single-user REAL SQL Database engine based on SQLite; it compiles console applications, has a code profiler, can remote debug and has numerous other features.
- The personal edition only compiles programs for the platform that the IDE is running on (either Windows, Linux or Mac), and does not allow access to databases other than the built-in REAL SQL Database.
IDE features
Both versions of the IDE permit building the application's graphical user interface by dragging the controls from a toolbar to their parent window. Layout of the controls is helped by the IDE, which permits aligning them (both horizontally and vertically) and which gives information about the distance between controls or between a control and the window borders.
Like many modern IDEs, the code editor supports customizable syntax highlighting, autocompletion and refactoring tools. The IDE also includes editors for menus and database schema and viewers for multimedia files such as pictures, movies or sounds.
The IDE gives the programmer access to scripting features via RBScript, which allows control of the IDE for automating tasks such as running regression tests or doing nightly builds. The scripts can be either global or project-specific.
REALbasic supports incremental compilation, whereby the compiler needs to recompile only those parts of a project which have been modified. For instance, if only the body of a method is modified, then only the project item containing that method need be recompiled.
Example code
This is an example of operator overloading for a hypothetical Complex class which permits to sum a real to a complex number, and to sum two complex numbers:
The same function can be defined to accept Doubledatatype values. This code shows how to use the Complex class to sum a real with a complex number:
See also
- RBScript - related scripting language
Comparable Basic Dialects
- Gambas - a free approach to object basic
Other Programming Languages
References
- Smith, Tony (September 13, 2005). 'RealBasic 2005 for Mac, Windows and Linux'. The Register. http://www.theregister.co.uk/2005/09/13/review_realbasic_2005/. Retrieved 2006-04-11.
- Barr, Joe (August 4, 2005). 'Review: REALBasic 2005 for Linux'. Linux.com. http://programming.linux.com/programming/05/08/03/1639214.shtml?tid=22. Retrieved 2006-04-11.
- REAL Software (May 6, 2008). 'REALbasic Language Reference'. REAL Software. http://www.realsoftware.com/download/individual/. Retrieved 2008-05-06.
- Tejkowski, Erick (2001). REALbasic for Dummies. Hungry Minds. ISBN 0764507931.
External links
- REAL Software, Inc., makers of REALbasic
- REALbasic forums, Official REALbasic discussion forums
- Association of REALbasic Professionals, Empowering the REALbasic community
- Really Basic REALbasic, introducing programming and REALbasic to beginners
- RB Garage, an open repository listing plugins, classes, modules, code examples etc.
- REALbasic Developer Magazine, a bi-monthly magazine about REALbasic development
- RBLibrary, a commercial resource of third party articles and tutorials
- REALDev, a wiki-powered developer community and code repository
- RBDevZone, a community for professional REALbasic developers
- declareSub.com, code, articles, and a book on declares
- REALbasic Wiki, independent effort to extend REALbasic documentation
- REALbasic City, a great collection of REALbasic tutorials
- RbApp, class library for building REALbasic applications
- Valentina for REALbasic, database plugin for Valentina DB and REALbasic
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