GUI ScreenIO for Windows

Standard Windows Features

GUI ScreenIO was implemented using the same techniques used by all low-level Windows developers; GUI ScreenIO calls the standard Windows API (Application Programming Interface) to create and manage your screens and their contents.  Because of this, the user enjoys the same Windows interface used by applications written in other languages - except that GUI ScreenIO applications are written in COBOL!

New behavior and appearance that Microsoft delivers with new versions of Windows are, in most cases, implemented automatically in your GUI ScreenIO application.

Windows:  Popups, Property Sheets, and Wizards

Your GUI ScreenIO application can use the types of windows you see on other Windows applications; furthermore, the programming is nearly identical for all supported window types.  If you decide to change a base panel to a popup, for example, you won't need to modify your program.

Automatic State-saving

Users can move and resize windows as they wish.  Furthermore, if you select the option in your panel properties to save window state automatically, GUI ScreenIO will restore the window to the same size and position the next time it is displayed - without any programming on your part.


GUI ScreenIO implements standard Windows cascading menus (including context - or right-click - menus).  You can also assign keyboard shortcuts to your menu items and GUI ScreenIO will honor them.


GUI ScreenIO implements most of the standard Windows "controls" - edit controls for text entry, checkbox and radiobutton controls for switches and multiple-choice options, listviews, combobox, and listbox controls for displaying lists, treeview controls for tree-structured data, and so on. 

Status bar and Message boxes

You can easily display messages at the bottom of your main window in a status bar or in a standard Windows message box.

Windows Help subsystem

GUI ScreenIO also offers an automatic interface to standard Windows Help facilities like this document, which uses Microsoft HtmlHelp. 

You can choose between using a custom HTML Help file (like this document), regular Microsoft Help, individual HTML files viewed with a browser, or HTML Help files generated for you by the GUI ScreenIO panel editor.

The GUI ScreenIO panel editor can also create the project files needed to get started developing your own custom HtmlHelp document.

2000-2019 Norcom, all rights reserved 


Send feedback to Norcom