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• How to program an Application
  ...show an C''x''O in a one hour crash course how to code a simple ''business application''.<br /> ...o lame, let's start with an actually usable example: A simple address book application.
  12 KB (1,969 words) - 20:44, 8 February 2024

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• Editing Database Files and other Data
  ...to edit, it's more often indirectly invoked with a command part of PDM<ref>Program Development Manager, a collection of programs to ease development and depen * Create a DFU program with <code>STRDFU</code> that directs you to the appropriate menu and
  2 KB (276 words) - 23:57, 12 March 2020
• Properly ending a daemon written in C
  ...question is running within, SIGTERM is being sent to tell the application program to cleanly end. In our case, we set <code>exit_flag</code> to 1, so the program exits from its main loop at the next iteration.
  2 KB (326 words) - 16:34, 13 August 2022
• Printing
  ...rms when it comes to principles of printing. There are printer devices the application programs can talk to, and spooling mechanisms to provide background handlin Application programs utilize a '''printer file''', that can be custom or the generic, I
  3 KB (430 words) - 16:36, 7 December 2023
• The Naming of the System
  ...true when considering the operating system presentation to the user. When an user does some tasks with OS provided tools via ''green screen'', there are ..."AS/400", but substitute another arbitrary name, like the function of the application.
  6 KB (1,019 words) - 17:50, 1 March 2024
• Displaying field-dependent errors in the message line
  It is always considered good habit to let a program's users know what's going on. Or what failed, and why. OS/400 provides comp ...nd Page-Down-Keys. If you ever wondered how to see other messages from one program invocation without bringing up the job log, now you know.
  15 KB (2,380 words) - 23:56, 12 March 2020
• Setting up TMKMAKE
  * First, the building application needs to be compiled: * Next, the building application needs to be run to build tmkmake and install additional components:
  6 KB (937 words) - 15:20, 12 February 2023
• Features that separate the AS/400 from common computer systems
  ...y be seen as split in half.<ref>Not necessarily evenly sized halves.</ref> An good deal of it (about 1&thinsp;GiB with V4) is called ''System Licensed In ...ith. This is called [[wikipedia:Control Program Facility|CPF]]<ref>Control Program Facility</ref>, a leftover from the AS/400’s ancestor, the System/38.
  21 KB (3,337 words) - 22:18, 24 January 2023
• How to program an Application
  ...show an C''x''O in a one hour crash course how to code a simple ''business application''.<br /> ...o lame, let's start with an actually usable example: A simple address book application.
  12 KB (1,969 words) - 20:44, 8 February 2024
• Hello World (using database, display file and RPG)
  This project will show you how to create the minimal components of a runnable application: * a program to show the content, in ILE RPG.
  13 KB (1,775 words) - 22:22, 4 June 2023
• Filesystems and Files on the AS/400
  This is somewhat similar to the differences between data transmission in an asynchronous manner (such as the RS-232 protocol specifies) versus synchron * Application Program Files also are structured in a way that permits the operating system to eff
  14 KB (2,273 words) - 10:15, 11 May 2023
• Post-Install Optimizations
  ...t of default values for variables (affecting the run-time environment) and program options. Some of these make sense, some of them are kept consistent with ea ...started job from the QSYSWRK subsystem description to make it not generate an error message at IPL time.
  14 KB (2,170 words) - 11:05, 6 February 2024
• About Green Screens and mouse-clickable UIs
  These very same people see an (emulated) AS/400 screen and almost immediately the expected behavior kicks ...extent and some pixel-modifications still are best done by a hand guiding an input device to steer a cursor on screen.</ref>, everything can be done wit
  15 KB (2,473 words) - 04:05, 25 January 2023
• Embedding SQL in RPG
  ...eates a binary object which in turn is automatically linked with the other application modules in the final compilation stage. It creates (invisible) hooks and va ...Invocations within a program ''retain state''. So you can declare stuff in an earlier call and embed cursor fetches in a loop.
  7 KB (1,158 words) - 11:56, 25 March 2021
• Getting Data in and out of your AS/400
  ...(at least indirect) connection of all systems to the Internet wasn't even an idea at that time.<ref>The predecessor of today's Internet — the ARPANET, ...nctions was covered in part by functions provided by OS/400 and in part by application programs from so called ''independent software vendors'' or ''ISV's''.
  12 KB (1,874 words) - 23:59, 12 March 2020
• Apple SNA•ps
  '''Apple SNA•ps''' is an application software package for Apple Macintosh computers running System 7. Its purpos ...e SNA•ps 3270 client for 3270 sessions can be used when required, and with an appropriately configured AS/400 system. See below for Macintosh System Soft
  24 KB (3,616 words) - 15:45, 14 March 2024
• IBM HTTP-Server for AS/400 Configuration
  ...onically, IBM, who at the time was propagating browser-based interfaces as an alternative to the supposedly dusty, character based ''Green Screen'' — t New directives entered via web UI are just appended to the end of an existing configuration. This is further limiting overview.
  346 KB (48,144 words) - 19:26, 24 August 2023