DevCon for OS/2 - Developer Connection

Operating systems: ArcaOS, eComStation, IBM OS/2 Warp

(Unsorted)       Compilers       Tools       REXX       Drivers/kernel	Добавить комментарий Ваше имя: e-mail для связи: Введите Anti-spam код 533531 Какой товар вам нужен? (коротко) Describe your order in free form: What application do you need: [---] web-site: OS2FAQ/?action=guide-app your contacts * email: [---] How to design PM application Title of the application The title should contain the name of application (name of operation), name of loaded document. Avoid flickering Picture viewers, PM applications should avoid flickering. Don't erase background before drawing Generate bitmaps in buffer Position load/save windows position load/save (relates to windows, settings notebooks) Save, x,y, width, height, + flag, does window fit into the desktop square? After load of x,y, width, height, check the dimensions of screen, does window fit into the window? if user changed screen resolution then use initial window position and size. Size of Main window If the application is based on container or listbox and it's empty then set compact size for the window. It should be compact without empty areas. Is it necessary restrict the maximal/minimal size of the window? Automatical saving of documents It is recommended to design the applications so no need to press Save button. "The whole idea of pressing the "save" button on a site or app to lock in your updates is old-fashioned. It also exposes users to data loss from system or connection bugs. Google Docs saves as you type, making it superior to Microsoft Office. Quicken (the software version) saves each transaction as you go. Note-taking apps OneNote and Evernote don't have save buttons because they don't need them (although in a UI flaw, the Web version of Evernote does). When systems are built correctly, everything you do can be undone and rolled back, and there should be no need for a save button per se (although many apps will still need a way to milepost versions of files). " (q) Rafe Needleman, source: news.cnet.com When to use pictures in your applications no recommendations Shutdown event, Suspend/resume event Suspend/resume: The applications are frozen and don't receive notifications. Nevertheless, every program may request APM notification via semaphores. Shutdown: VIO applications: SIG_BREAK PM applications: WM_EXIT message Exit confirmation If application is a viewer then no need to confirm exit. If it's an editor of user's data then show MsgBox: Are you sure? Quit, Cancel. Hot keys Examples: Ctrl-F - Find Ctrl-N -- no matter which program, it should: create new playlist, in addressbok a new address template, in editor - new window Ctrl-O -- Open FileOpenDialog to load file Ctrl-S -- Save current document Ctrl-P -- Print dialog Settings notebook There is Merlin notebook in eComStation. Please use this control, don't use other forms. Good Bad   Please share information with other developers how to: Q: Criteria when to use Status line?

 

ArcaOS 5.1.1 - DOS works again DOS virtual machine works again (it was working on Core 2 Duo, and didn't for i5). Install ArcaOS in UEFI mode to use DOS VM.

eComStation developer eCo Software was the leading developer of modules for eComStation 2.0

// надо на ENG!! Buy OS/2 application: DVD/CD Toys

Warpstock Europe 2016 Interview with Keith .. video

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