REALBASIC

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Extremely well built, powerful and complete IDE. Very professional working
environment RAD. Valid alternative to VisualBasic. It has hundreds of commands and functions. The developers more attentive may notice a little of Rapid-Q inside RealBasic this because RealBasic Inc. hired Willam Yu - the creator of Rapid-Q - in 2000. RealBasic is a fully featured object oriented programming language. It supports inheritance, interfaces and polymorphism. It includes more than 40 native user interface controls such as buttons, fields, lists, sliders, tab panels, etc. It has a 2D vector graphics engine for spline-based images and a real-time 3D engine. It supports sprite animation such as interactive sprite surface with built-in collision detection. RealBasic offers socket control to enable the development of powerful Internet client applications and SOAP (Simple Object Access Protocol) support so web services may be incorporated inside applications quickly and easily. Unfortunately it creates large stand alone EXEs (2.56Mb). RealBasic web site offers a free VB code conversion utility that should convert VB files to RB code where possible. Latest version is RealBasic 2006. It has been improved with new features such as application localization, a new IDE scripting tool that automates tasks, new events that react to the mouse, new datatypes so to be more compatible with VB6
and a improved support for Novell Linux Desktop. You must take a look at it.

Windows, Linux, MacOS