QX_MDI

Switches on the MDI mode.

Syntax:

QX_MDI={any non-empty value}

Possible values:

Usage and examples:

In the MDI mode, you can run several applications as child ones within one parent container:

Here you can read more about MDI mode, and here you can find some interactive examples.

By default, QX_MDI is not set and all applications are run in the SDI mode.

There are two ways to enable the MDI mode:

→ by defining the QX_MDI environment variable in inet.env with any non-empty value (though we recommend setting it to 1):

QX_MDI=1

→ by calling ui.Interface.setType("Container") in your 4gl program (refer here to get the details).

QX_MDI applies at runtime and must be set in inet.env and in environ.bat (for the command line environment).

You can set QX_MDI together with QX_MENU_WINDOW and QX_MENU_WINDOW_NEW_CHILD to enable more profound MDI functionality.

Related articles:

MDI mode