WINDOW

Windows are containers of controls and can be resized or moved around.

Windows are created with the DISPLAY Statement, Format 10.

There are four kinds of window:

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INITIAL (or STANDARD): The main window of the COBOL application. There can be only one and therefore it’s usually used to store the application’s main screen. It appears as a button in the task bar. If you minimize it, all other windows of the same application are minimized. If you close it, the application terminates.

•	INDEPENDENT: The most common type of window, typically used to store the screen of the COBOL application programs. It appears as a button in the task bar. If you click on the close button, a CMD-CLOSE event is generated only if the System Menu style is set, otherwise nothing happens.

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FLOATING: A pop-up panel, bound to its parent window (which can be INDEPENDENT or INITIAL). By default, this kind of window is modal, which means the user cannot switch back to the parent window until the FLOATING window is closed. It does not appear as a button in the task bar and cannot be minimized, maximized or restored. If you click on the close button, a CMD-CLOSE event is only generated if the System Menu style is set, otherwise nothing happens.

•	DOCKING: A container of DOCKABLE windows. It has the same characteristics as the INDEPENDENT window, but instead of storing a standard screen, it stores multiple doackable windows, each one with its own screen.

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MDI-PARENT: A container of MDI-CHILD windows. It has the same characteristics as the INDEPENDENT window, but instead of storing a standard screen, it stores other windows, each one with its own screen. The child windows can be moved by the user inside the MDI-PARENT window area, but they never get ouside of it.