From Seo Wiki - Search Engine Optimization and Programming Languages
This is a comparison of widget engines. This article is not about widget toolkits that are used in computer programming to build graphical user interfaces.
Widget engines that are discontinued are marked in a different color.
- ^ The Yahoo! Widgets was originally released by Arlo Rose and Ed Voas as Konfabulator. The name was changed several months after Yahoo! acquired the software in July 2005.
Operating system support
- ^ As for the next major version the gDesklets' developers are planning to support Windows XP and Mac OS X.
- ^ Early versions of Windows Sidebar have been successfully ported to Windows XP, though this activity is forbidden under the EULA.
- ^ The current version of Samurize (1.64.2) runs on Vista but there are a few minor issues that need to be worked out, such as security dialog prompts.
- ^ Google Desktop for Linux requires an additional download (Google Gadgets for Linux) to run Google Desktop Gadgets.
- ^ WidSets is for mobiles and runs on the Java MIDP 2.0 platform
- ^ NetFront is a Mobile browser, which is also preinstalled on the PSP, and on the PlayStation 3.
What programming languages the engines support. Most engines rely upon interpreted languages.
- ^ Widgets for Kapsules and Serious Samurize can be written in any scripting language for which there is an ActiveScript engine, including PHP, JScript, VBScript and Ruby.
- ^ This is only relevant for Opera's and NetFront's extensions; the web browsers themself support HTML, CSS and others.
- ^ Samurize supports DLLs compiled with C++, Delphi, PowerBASIC, and FreeBasic, among others. HTML/XML/CSS support can be added by using certain plugins.
- ^ Yahoo! Widget Engine supports Perl and Python indirectly through the use of the shell, provided that the interpreters are installed on the machine (on Mac OS X, they are by default).
- ^ gDesklets might support Perl scripting through PyPerl  in the next major version.
- ^ gDesklets will provide some CSS like dialect in the next major version.
- ^ KlipFolio supports custom styles using CSS syntax.
- ^ Yahoo! Widgets can interface with COM (windows) or AppleScript (Mac OS)
- ^ Dashboard uses a technology called Cocoa Plugins.This allows for Objective-C code to be used through the plugin. The plugin is written with Cocoa and is compiled.
- ^ Widgets for Adobe Air can also be programmed in Adobe Flash, and Actionscript.
Formats and Development
- ^ Microsoft Gadget have documentation, but no IDE to aid development.
- ^ Yahoo! Widgets have documentation, but no IDE to aid development.