In an MDI configuration,  want to call a function that is in an already opened widow (say w_main) from another opened widow (say, w_detail) and, once the function is executed, close the calling widow (w_detail) to return to the original window, (w_main).

Using Active Sheet to get a handle on w_main does not help because w_detail is the active sheet.  I do not want to create another instance of  w_main by using OpenwithParm(..).

In a simplified version of the code in w_detail, I’ve tried:

If IsValid(w_main) Then

                li_rc = w_main.of_perform_function()

End If

Once the function is executed, I code to close the calling window, w_detail, for w_main to be the active sheet.

I’m using PM 2019 R3

Any advice would be appreciated.