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CHAPTER 1 AN INTRODUCTION TO REALBASIC At press time, REALbasic 2006 Standard Edition for Linux was free. In addition, you could purchase a license key for the Macintosh or Windows version of REALbasic Standard Edition for $99.95. The purchase price for any of the three Professional Editions of REALbasic is $499.95. Once installed, you can activate either the Standard or the Professional Edition of REALbasic by entering the software key you obtained from www.realsoftware.com. In other words, if you enter a key for the Standard Edition, REALbasic Standard Edition will run. However, if you enter a key for the Professional Edition, the REALbasic Professional Edition will run. Note If you don t get your software key before you install REALbasic on your computer, REALbasic prompts you to do so the first time you start it up. REALbasic vs. Visual Basic When it comes to the development of Windows applications, REALbasic s main competitor is Microsoft s Visual Basic programming language. If you are a Windows programmer with a background in Visual Basic, you are going to find that REALbasic is remarkably similar to Visual Basic. As a result, you can get up and running quickly and can leverage nearly all your Visual Basic programming experience. This is especially true for Visual Basic programmers with a Visual Basic 6 background. The reason is because REALbasic closely mirrors much of what is in Visual Basic 6. Programmers with a background based on Visual Basic .NET also find the transition to REALbasic relatively smooth and can bring over most of their Visual Basic programming experience, less any .NET-specific features. Because REALbasic is so similar to Visual Basic, you ll find it is relatively easy to port your Visual Basic applications over to REALbasic. In fact, you ll probably find you can port your applications over in an hour or a day, instead of weeks or months, as would be the case if you moved from Visual Basic over to another programming language, such as C++ or Java. REALbasic and Visual Basic are similar to one another, but plenty of important differences exist. These similarities and differences are highlighted in the following sections. The Development Environment Both REALbasic s and Visual Basic s IDE are similar and their development process is nearly identical. You start by adding controls to a window (called a Form in Visual Basic). Then, you set window and control properties, and add code. Next, you test your application and, when you are ready, you compile your stand-alone application.
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CHAPTER 1 AN INTRODUCTION TO REALBASIC Cross-platform Remote Debugging. Provides the capability to debug an application running on one computer from a different computer, using any combination of OSs supported by REALbasic. Support for Console Applications. Provides the capability to create background applications that can be executed without requiring user interaction or scheduled to run when no one is logged into the computer. Downloading REALbasic REALbasic is distributed online. REALbasic has three different distributions: one for Macintosh, one for Windows, and one for Linux. You can download all three versions of REALbasic from REAL Software s website at www.realsoftware.com, as Figure 1-2 shows. Figure 1-2. You can download a copy of REALbasic from the REAL Software website. Each of these distributions is activated by a software key, which you must get from www.realsoftware.com. Each distribution contains everything needed to install either the Standard Edition or the Professional Edition of REALbasic.
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CHAPTER 1 AN INTRODUCTION TO REALBASIC Royalty-free Deployment. Any applications you create can be freely distributed. You can give away or sell your REALbasic applications without having to pay REAL Software a royalty free. Platform-specific Application Creation. Each of the three Standard Editions is capable of generating stand-alone applications for their associated OSs, as well as demo versions that can run on other OSs. Extensibility. REALbasic provides the capability to extend its capabilities by adding your own or third-party plug-ins to REALbasic. Note Each version of REALbasic Standard Edition is also capable of creating demo applications for other OSs. A demo application has all the features of the application, but automatically stops executing after five minutes. For example, using REALbasic 2006 Standard Edition Windows, you can create full-featured Windows applications, as well as create demo versions of those applications that can run on Macintosh and Linux. REALbasic 2006 Professional Edition REALbasic 2006 Professional Edition comes in the following three versions: REALbasic 2006 Professional Edition for Macintosh REALbasic 2006 Professional Edition for Windows REALbasic 2006 Professional Edition for Linux Each of these three versions of REALbasic provides programmers with the same set of features, regardless of OS platform. The REALbasic Professional Editions provide all the features found in the Standard Editions. Also, the following additional features are available in each of the Professional versions. Internet Development Features. REALbasic provides the capability to develop secure Internet applications using Secure Sockets Layer (SSL). Web Server Development Enhancements. REALbasic provides support for ServerSockets, providing the capability to create web server applications capable of managing thousands of connections. Enhanced Database Support. Database support for numerous third-party databases has been added, including support for Oracle, Sybase, Microsoft SQL server, Openbase, Frontbase, FileMaker Server, MySQL, and any ODBC-compliant data source. Multiplatform Application Creation. All the Professional Editions are capable of compiling applications that can run on any of the OSs supported by REALbasic.
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CHAPTER 1 AN INTRODUCTION TO REALBASIC of REALbasic are designed for professional programmers and software development companies in the business of developing and distributing professional commercial software. Note Just because the Professional Editions of REALbasic include additional features, doesn t mean you can t do some serious software development with the Standard Editions. In fact, in many cases, you ll find you don t need the extra capabilities provided by the Professional Editions to build commercial quality applications. REALbasic 2006 Standard Edition REALbasic 2006 Standard Edition comes in the following three versions: REALbasic 2006 Standard Edition for Macintosh REALbasic 2006 Standard Edition Windows REALbasic 2006 Standard Edition for Linux Each of these three versions of REALbasic provides programmers with the same set of features, regardless of OS platform. With the Standard Editions, you get a full set of development tools for creating applications for a particular OS. The following list outlines some of the major development features provided by the REAL- basic Standard Editions. A Window Editor. Enables you to create windows by dragging-and-dropping any of over 40 predefined controls, and provides visual assistance in resizing and realigning those controls. A Code Editor. Provides automatic statement color-coding, as well as a built-in auto- complete feature that provides assistance with writing code using valid syntax. Object-oriented Programming. REALbasic s implementation of BASIC is fully object- orientated with support for classes, objects, methods, and properties, as well as support for such features as polymorphism, inheritance, encapsulation, and abstraction. Graphic Support. Provides the capability to incorporate bitmaps and vector graphics, and to implement 2-D and 3-D graphics, as well as to integrate QuickTime movies into your applications. Integrated Help System. REALbasic uses its status bar to provide context-sensitive help based on the work currently being performed. In addition, the entire REALbasic reference manual has been integrated into the REALbasic IDE. Internet Development Features. Support is included for HTTP, UDP, SMTP, and POP3 to provide the capability to create Internet client-side applications. Built-in Database Support. REALbasic comes equipped with a single-user version of SQLite, a fully functional database engine.
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CHAPTER 1 AN INTRODUCTION TO REALBASIC The Standard and Professional versions of REALbasic for Linux can run on any Intel-based Linux distribution that supports GTK+ 2.0, Glibc-2.3, and Common UNIX Printing System (CUPS) or any higher levels for any of these requirements. Examples of qualifying Linux OSs include Novell Linux Desktop SuSE Mandriva/Mandrake Red Hat Desktop Table 1-3 outlines additional minimum and recommended hardware requirements for REALbasic 2006 Linux. Table 1-3. REALbasic s Requirements for Execution on Linux Resource Minimum Requirements Recommended Requirements Processor 1GHz 1.5GHz Memory 256MB 512MB Supported Execution Platforms When it comes to which OSs are supported, REALbasic s list of supported execution platforms is a little larger than its list of supported development platforms. Specifically, the list of supported Macintosh systems is larger, as shown in Table 1-4. Table 1-4. Supported Operating Systems Type Supported Operating Systems Macintosh PowerPC Macintosh, including G3, G4, and G5 running System 9.1 or Mac OS X 10.1 or higher Windows Windows 98, Me, NT, 2000, 2003 Server, XP, and Vista Linux Any Intel-based version of Linux with GTK+ 2.0 or higher, Glibc-2.3 or higher, and the CUPS Standard vs. Professional REALbasic comes in two flavors: Standard and Professional. Both REALbasic Standard and REALbasic Professional Editions provide you with all the tools you need to develop Windows, Macintosh, and Linux applications. However, as you would expect, the Professional Editions of REALbasic provide additional features not found in the Standard Editions. The Standard Editions are typically better suited for the first-time programmer who doesn t want to invest too much money to start learning the language. The Standard Editions are also suitable for hobbyists who are looking for a programming language that can help them create custom applications or to have a little fun. On the other hand, the Professional Editions
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CHAPTER 1 AN INTRODUCTION TO REALBASIC SUPPORT FOR MACINTOSH RUNNING ON INTEL In June 2005, Apple announced that it was going to begin delivering a version of the Macintosh operating system that would run on the Intel processor, with the intention of transitioning all of its computer lines over from the PowerPC processor to the Intel processor by the end of 2007. The next day, REAL Software announced that it would add support for the MAC OS X on Intel processors, promising that most existing REALbasic applications made for the Macintosh would be able to be recompiled for the new Intel processor version of MAC OS X without any code changes. In addition, REAL Software announced that it would continue to support application development for the PowerPC processor. Windows REALbasic can run on any version of Windows, starting with Windows 98 and NT. However, for optimal performance, you should run it on Windows XP or Vista. Table 1-2 outlines the minimum and recommended hardware requirements for both the Standard and Professional Editions of REALbasic 2006 for Windows. Table 1-2. REALbasic s Minimum and Recommended Hardware Requirements for Execution on Windows Resource Minimum Requirements Recommended Requirements Processor 1GHz 1.5GHz Memory 256MB 512MB Operating Systems Windows 98, NT, or higher Windows 2000, 2003, XP, or Vista Note Surprisingly, REALbasic is more flexible than Visual Basic .NET when it comes to what versions of Windows OSs its IDE can support. Visual Basic .NET 2005 only supports execution on Windows 2003 Server, Windows XP running Service Pack 2, and Windows 2000 running Service Pack 4. Linux Linux has been quick to gain acceptance in the enterprise. It started out being used mostly on the server, but has since make great strides on the desktop. As Linux supports grows, more and more individuals and companies are looking for desktop applications that match what is found on Windows and the Macintosh. Porting Visual Basic applications over to REALbasic provides an easy answer to serve this niche, as does the development of new REALbasic applications.
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CHAPTER 1 AN INTRODUCTION TO REALBASIC The capability to remotely debug applications. This feature is available only on the Professional Editions of REALbasic. REALbasic now has a built-in remote debugging capability that enables programmers to remotely test and debug applications running on one computer from a completely different network computer. In addition, the two computers being used do not even have to be running the same OS. Built-in support for the SQLite database. Previous versions of REALbasic included support for REALbasic s REAL Database. In REALbasic 2005, REAL Database has been replaced with the SQLite database, providing REALbasic with an even more powerful industry-recognized database. A rapid release online distribution model. With the release of REALbasic 2005, REAL Software began providing fixes, updates, and upgrades for REALbasic every 90 days. This will provide REALbasic programmers with access to new features that other competing software developers may not incorporate into their programming languages for up to 18 months. Supported Development Platforms This book makes a distinction between the computers and OSs used to run REALbasic and create applications, and those computers and OSs where applications are ultimately run. The computer and OSs where REALbasic is installed (for example, your computer) is referred to as the development platform, whereas the computers and OSs where the applications you create will ultimately run (for example, your customer s computers) are referred to as the execution platforms. Once installed, REALbasic looks and runs the same way on each of its supported development platforms. However, its minimum and recommended hardware requirements vary for each supported OS. Macintosh REALbasic Standard and REALbasic Professional both have the same minimum hardware requirements. Like most software applications, REALbasic runs better when additional hardware resources are available. Table 1-1 outlines REALbasic s minimum and recommended hardware requirements when running on the Macintosh OS. Table 1-1. REALbasic s Minimum and Recommended Hardware Requirements for Execution on Macintosh Resource Minimum Requirements Recommended Requirements Processor Any PowerPC capable of 800GHz G4 or higher running Mac OS X Memory 512MB 768MB Operating Systems Mac OS X 10.2.8 or higher Mac OS X 10.3.9 or higher
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CHAPTER 1 AN INTRODUCTION TO REALBASIC What Can REALbasic Do? As previously stated, REALbasic provides you with all the tools you need to create world-class commercial software, or to create your own custom applications or computer games. If you can imagine it, you can build it using REALbasic. For example, using REALbasic, you can create Desktop applications Utility programs Background programs and services Computer games Database applications Internet client applications Internet web server applications One of the things that makes REALbasic a powerful software development tool is it hides most of the complexity involved in the creation of applications. REALbasic does this by automatically taking care of core application functionality. For example, when you create a REALbasic application, you needn t worry about how to create a window or a PushButton control. REALbasic automatically provides you with these resources and takes care of making sure that they work, as you d expect. By abstracting so much OS functionality, REALbasic greatly simplifies the application development process. As a result, you ll find you can create applications that can perform tasks such as creating reports and text files on Macintosh, Windows, and Linux OSs without having to concern yourself with the differences in the ways each of the OSs works with these types of resources. Similarly, REALbasic also masks the complexities of working with graphics and network resources, enabling you, instead, to focus on developing the higher level functionality provided by your application. What s New in REALbasic? REALbasic 2006 is the most current version of REALbasic. It is backwards-compatible with previous versions, meaning you should be able to compile and run any application created using a previous version of REALbasic with little, if any, modifications or problems. Starting with REALbasic 2005, a number of new bells and whistles were added that are not found in previous versions. Highlights of some of the more interesting new features, include A new browser-styled IDE. REALbasic s IDE now has the look and feel of an Internet browser that supports tabbing, complete with controls for navigating forward and backward (such as are found in the FireFox browser). The new IDE also helps to provide more room to work by making it easier to share space with various IDE windows and screens. Support for multiple projects. REALbasic now provides the capability to open up and work with multiple projects at the same time. This makes copying and pasting code between your applications easier.
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CHAPTER 1 AN INTRODUCTION TO REALBASIC REALbasic provides a large collection of controls, representing features like PushButtons, EditFields, ProgressBars, and so on. Once added to a window, REALbasic assists you in moving and resizing them by automatically providing you with visual indicators that show when they are aligned with one another. Object-Oriented Programming REALbasic is an object-oriented programming language (OOP). An OOP language like REALbasic sees everything that makes up an application as an object. For example, a window is an object. A PushButton on a window is an object, as is a CheckBox or a ProgressBar. In OOP, objects are semi-independent entities, meaning they store information about themselves and are responsible for controlling their actions. For example, a PushButton control stores attributes defining its appearance, such as its size, color, and position within a window. A PushButton control also stores program code that controls its actions, such as what to do when it s clicked or double-clicked. RAD REALbasic supports rapid application development (RAD). RAD is a process that supports a speedy software development process. One important RAD feature is prototyping. Prototyping is a programming technique in which the programmer creates a mockup of all the windows that will make up an application. This initial version of the application has no program code. It is designed to show the user or customer what the end result will ultimately look like. This enables the programmer to collect early feedback and to incorporate this feedback into the design of the application. RAD provides programmers with the capability to ensure the application that is ultimately created will meet customer expectations. Cross-Platform Application Development The REALbasic IDE looks and operates the same way on Macintosh, Windows, and Linux. Its toolbars, menus, windows, and options all look and work exactly the same way. The applications you create will all look and act the same when run on any of these OSs, except for cosmetic differences that have to do with the differences in the way Macintosh, Windows, and Linux OSs display certain application features. For example, the appearance of the Minimize, Maximize, and Close buttons are slightly different on each OS. However, by allowing for these OS specific differences, REALbasic enables you to develop applications that look and act just the way your users expect them to on their specific OS.
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CHAPTER 1 AN INTRODUCTION TO REALBASIC COMPETING PROGRAMMING LANGUAGES Plenty of other software companies have developed various programming languages based on BASIC. These companies include Microsoft s Visual Basic, Pyxia s iBasic, Shoptalk Systems JustBasic and Liberty Basic, the GameCreators DarkBasic, and many more. However, all these BASIC implementations are designed to run only on the Windows OS. Each of these BASIC implementations has its own particular set of strengths and weaknesses, but none can complete with REALbasic when it comes to cross-platform software development. From its introduction, REALbasic has been recognized as a programming language that is easy to learn, yet powerful enough to build complex applications. REALbasic quickly became popular for a number of reasons, including REALbasic facilitates drag-and-drop GUI design. REALbasic is an object-oriented programming language. REALbasic supports rapid application development (RAD). REALbasic provides for cross-platform application development. Drag-and-Drop GUI Design One of the features that makes REALbasic popular is the capability to create professional GUIs without requiring that you write a single line of code. Each time you start REALbasic, its IDE appears and you are presented with a new project. A project represents the collection of resources that make up a REALbasic application. Included in every project is a new blank window. You can use this window to create your application s GUI by dragging-and-dropping predefined controls supplied by REALbasic on to it. Note An Integrated Development Environment (IDE) is the workspace you are given to work with when creating your application, along with all its associated menus, toolbars, windows, and built-in editors. REALBASIC S TIMELINE REALbasic is developed by REAL Software, Inc. (www.realsoftware.com), which was founded in 1996. REAL- basic started out as a software development tool for the Macintosh OS. REALbasic was first released on the Apple Macintosh in 1998, where it quickly received much acclaim and praise. In 2003, the Windows version of REAL- basic was released. Later, in February 2004, REAL Software added the capability to compile software that could run on the Linux OSs to both the Macintosh and the Windows versions of REALbasic. However, REALbasic itself still only ran on Macintosh and Windows. This situation changed in September 2005, when REALbasic 2005 for Linux was released.
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