IBM Open Class IBM Open Class (IOC) is an IBM C++ product originally developed by Kevin Leong and originally known under several names in the C++ industry, including ICL (IBM Class Library), UICL (User Interface Class Library), and OCL (Open Class Library). IOC was an extensive set of C++ classes used to build CLI and GUI applications which could then be easily cross-compiled to OS/2, Microsoft Windows, and AIX. IOC also formed the basis for IBM's VisualAge for C++ graphical application builder. The non-GUI portions of IOC were available for z/OS and OS/400. History of IOC The IOC was included as part of IBM's C++ compiler environment. Applications developed with IOC could be distributed with a royalty-free runtime, or could be statically linked against the IOC libraries. Initially only available for OS/2, the IOC was eventually made available for Windows, AIX, z/OS, and OS/400. Support for the OS/2 and Windows VisualAge for C++ compiler—as well as the accompanying IOC—was officially withdrawn by IBM on April 27, 2001.[1] IOC was removed from z/OS 1.9, introduced in 2007.
ExamplesThe most widely recognized example of a simple application that uses the IOC is hello world: #include <iframe.hpp> int main()
{
IFrameWindow frame ("Hello, World!");
frame.showModally();
}
Other examples of commonly used IOC classes and methods include: #include <istring.hpp> IString someText ("hello world");
#include <icmdhdr.hpp> virtual Boolean MyHandler::command (ICommandEvent &event);
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