How Do I Force the Runtime Engine to Run its Application as an SDI Application? (Magic xpa 3.x)
A Single Document Interface application is one where each individual window has its own menu, task bar, and status bar. There is no “main” MDI background screen, and the application closes when the last SDI screen closes.
There is still a main context and a Main Program, but this is in the background and does not show to the user.
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Start the program in the Task Prefix logic unit, depending on whether the context is Main or not. Otherwise it will be loaded multiple times.
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In the Main Program, set the Task Properties->Interface->Open Window property to No.
How Do I Run a Program as an SDI Program?