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 Support for the OS/2 and Windows VisualAge for C++ compiler—as well as the accompanying IOC—was officially withdrawn by IBM on April 27, 2001. IOC was removed from z/OS 1.9, introduced in 2007.
- C/Set++ v2.01 for OS/2 (1993)
- VisualAge C++ for OS/2, version 3.0
- VisualAge for C++ for Windows, version 3.5
- C and C++ Compilers for OS/2, AIX, and for Windows NT, version 3.6
- C and C++ Compilers for OS/2 and Windows, version 3.65 (1998?)
- VisualAge C++ Professional for OS/2 and Windows NT, version 4.0 (1998)
Examples
The 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);
Notes
- IBM's Withdrawal Announcement #901-013 (announced on January 23, 2001, effective on April 27, 2001)
External links
- news://ibm.software.vacpp.openclass
- ISBN 0-442-01795-2 (C++ Class Library: Power GUI Programming with CSet++)
- ISBN 0-471-16482-8 (Power GUI Programming with VisualAge for C++)
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