IUP Toolkit for building graphical user interfaces
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IUP Description

Toolkit for building graphical user interfaces IUP is a free and open source, portable toolkit for building graphical user interfaces. IUP offers a configuration API in three basic languages: C, Lua and LED. IUP's purpose is to allow a program to be executed in different systems without any modification. Currently available interface elements can be categorized as follows:· Primitives (effective user interaction): dialog, label, button, text, multi-line, list, toggle, canvas, frame, image.· Composition (ways to show the elements): hbox, vbox, zbox, fill.· Grouping (definition of a common functionality for a group of elements): radio.· Menu (related both to menu bars and to pop-up menus): menu, submenu, item, separator.· Additional (elements built outside the main library): dial, gauge, matrix, tabs, valuator, OpenGL canvas, color chooser, color browser.· Dialogs (useful predefined dialogs): file selection, message, alarm, data input, list selection.Hence IUP has some advantages over other interface toolkits available:· Simplicity: due to the small number of functions and to its attribute mechanism, the learning curve for a new user is often faster.· Portability: the same functions are implemented in each one of the platforms, thus assuring the interface system's portability.· Customization: the dialog specification language (LED) and the Lua binding (IupLua) are two mechanisms in which it is possible to customize an application for a specific user with a simple-syntax text file.· Flexibility: its abstract layout mechanism provides flexibility to dialog creation.· Extensibility: the programmer can create new interface elements as needed. What's New in This Release: · New: function IupResetAttribute. · New: MINMAX attribute for IupSplit. · New: global attribute SINGLEINSTANCE so the application can restrict the number of its instances in Windows. COPYDATA_CB callback for IupDialog in Windows to receive the command line of the secondary instances when SINGLEINSTANCE is used. · New: attributes WMFAVAILABLE, EMFAVAILABLE, SAVEWMF and SAVEEMF for IupClipboard in Windows. · Changed: some Lua parameters that use "number" to "integer". · Changed: replaced old "arg" usage for "..." to improve better compatibility with LuaJIT. Thanks to J.-F. Cap. · Changed: IupSaveClassAttributes to not save values that are equal to the default values. · Changed: IupFileDlg behavior in Motif to avoid auto resize when a directory is changed. · Changed: C function iuplua_dofile will now check for the IUPLUA_DIR environment variable when file could not be opened. · Changed: control of LOHs inclusion moved from the source code to the makefile. · Changed: removed compatibility with require"iuplua...

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