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You can get access to the opening information associated with any window by getting a class #VF_SY154 reference to the window (see preceding sections Finding a Window and Enumerating All Windows).

You can update the opening information currently associated with any window by setting the OpenInfo<> properties like this example, which updates the MAIN window:

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#Com_Owner.avMainWindow.OpenInfo<5> := "Return String 5"

The OpenObjectRef property may be used to pass any type of object reference between windows. By doing this you can pass and share any amount or type of information between windows.  

To get a filter or command handler in the new window to use the OpenInfo data, add an uShowWindowCompleted method routine to the command handler/filter. See Notifying other Windows of Significant Events.