wxWidgets is a cross-platform C++ GUI library, offering classes for all common GUI controls as well as a comprehensive set of helper classes for most common application tasks, ranging from networking to HTML display and image manipulation. wxWidgets uses native widgets on all platforms whenever possible and fills missing gaps on some platforms using generic controls written with wxWidgets itself.
System requirement is not defined
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
Enhancements include the removal of the distinction between ANSI and Unicode builds, and a reworked Mac OS X architecture, supporting both 32-bit Carbon and 32-bit/64-bit Cocoa variants (wxOSX/Cocoa at alpha stage), the addition of property grid classes, an enhanced data view control with combined tree and list control behavior, support for persistent objects, and totally revised Doxygen-based documentation.
Various minor problems with the latest GTK+ versions have been fixed since the last minor release. Other improvements include those to the wrappers for the GNOME print dialogs, the wxAUI docking library, and the wxRichTextCtrl. Several display problems of wxListCtrl in connection with newer GTK+ themes and rare scrolling issues have been fixed. Scrolling wxStaticTexts and improved mouse wheel scrolling have been fixed. A problem with wxSpinCtrl::SetValue that slipped in before the last release was corrected.
A new AUI (advanced user interface) library for docking windows. A new richtext library. New controls: wxComboCtrl and wxOwnerDrawnComboBox, wxTreebook, wxColour/Dir/File/Font/PickerCtrls, and wxHyperlinkCtrl. Many other enhancements and bugfixes in all areas.
This releases only contains bugfixes in the stable series. Among the corrections to the GTK+ are speed-ups in the MIME database code, major corrections in the refresh code, corrections to idle event request code, support for user dashes in the PostScript and GNOME-print printing backends, and fixes for various compilation issues on Solaris. There are also numerous corrections in the other ports, including support for Intel hardware in the Mac OS X port. The GTK+ version is used for the recent release of Xara Xtreme LX.
Support for GTK+ 2.4 file dialogs, printing through GNOME print libraries, support for GNOME panel applets, improved theme support, better HIG support (default button ordering and look), shaped frame windows, bitmaps with alpha transparency and raw pixel access, more complete HTML support, STL-like container classes, a complete set of archive (ZIP, gzip, etc) classes, improved socket support, a new build system with the library split into independent sub-libraries (including non-GUI wxBase), improved Unicode support (text streams and filenames), and a wxCrashReport class for debugging.