Web hosting account - CHAPTER 1 AN INTRODUCTION TO REALBASIC 15
CHAPTER 1 AN INTRODUCTION TO REALBASIC 15 Language Similarities Both REALbasic and Visual Basic are object-orientated programming languages. Both share a common set of keywords (If, Then, Else, and so forth). Both have numerous functions in common. Both also share a common syntax and both use dot notation to reference properties. The list of similarities goes on an on. In many ways, REALbasic can be looked at as the next step in the evolution of Visual Basic 6, whereas Visual Basic .NET can be viewed more as being a new divergent form of the language. The end result is this: porting a Visual Basic 6 application over to REALbasic is usually easier and quicker than modifying it to run under Visual Basic .NET. Platform Support Visual Basic only supports Windows operating systems, specifically only those Windows OSs running the .NET Framework. REALbasic, on the other hand, is designed to support cross-platform development on Macintosh, Windows, and Linux. Of course, more platforms mean more customers and more sales. Distribution Issues Visual Basic 6 applications may required specific DLLs be installed on a computer for it to execute and it is, thus, subject to DLL Hell. DLL Hell occurs when a new application overwrites an existing DLL file with a newer one, breaking any applications that need access to the previous version of the DLL file. Visual Basic .NET applications require the .NET Framework to be installed for the applications to execute, thus requiring additional system overhead. REALbasic applications run natively on any supported OSs, without requiring the overhead of a framework or risking DLL Hell. Windows Ready Applications Visual Basic applications are, of course, automatically designed to work and act like any other Windows application. REALbasic applications that run on Windows are also automatically Windows theme ready, meaning they will run and look like any other Windows application running on Windows 98, Me, NT, 2000, XP, and Vista. REALbasic applications also support Windows technologies, such as ActiveX and COM, as well as the Windows registry. Support for PDAs and Mobile Devices One area where Visual Basic has capabilities not matched by REALbasic is Visual Basic s capability to support application development for PDAs and mobile devices, such as cell phones.
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