Explain VBA code

The following VBA code is a function called from a form that allows a user to "Reset", "Preview", "Print" or "Close". Assuming the reset and close affect the form and the Preview and Print affect a report.The user clicks one of the command buttons on the form which triggers the function. I am unsure exactly what it does.  The line "Application.Run strFunctName, strParam"  appears to do something. Can someone explain what is going on here. Thank you.

Function GenRptButtons(strParam As String) As Variant
  ' Comments   :
  ' Parameters :
  ' Returns    :
  ' Created    : 6/24/1998 11:25:19 AM rlk
  ' Modified   :
  ' --------------------------------------------------------
  On Error GoTo GenRptButtons_ERR
  Dim strFunctName As String
  DoCmd.Hourglass True
  strFunctName = Screen.ActiveForm.Name
  Application.Run strFunctName, strParam
  DoCmd.Hourglass False
  Exit Function

  MsgBox "The following error occurred in GenRptButtons" & Chr(13) _
    & "Error # " & Str(Err.Number) & " was generated by " _
    & Err.Source & Chr(13) & Err.Description

  Resume GenRptButtons_Exit

End Function
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Rey Obrero (Capricorn1)Commented:
<The user clicks one of the command buttons on the form which triggers the function>

First, you have to take note of the codes that are on the CLICK EVENT of each command button.
Those codes will tell you the parameters passed to the functions.

copy the codes and paste them here so we can explain what it intends to do.
Application.Run calls a sub\function with the name of the current form passing a string parameter which you say can by "Reset", "Preview", "Print" or "Close".
It is some approach to have form independent code in buttons.
Application.Run  strFunctName, strParam
is call of sub with name strFunctName
in previous line it is assigned to Form's name:   strFunctName = Screen.ActiveForm.Name
strParam is parameter of sub.
There should be public subs (in module) with names equal to forms names,
in button code should be like:
Private Sub Button94_Click()
     GenRptButtons ("Test")
End Sub
Screen.ActiveForm.Name - is just what it says - the name of the active form.
 Application.Run  - runs the procedure named by the first argument so look for a procedure with the name of some form.  The second argument is whatever was passed to the sub in its arguments.

To see these names, put a stop on the Application.Run line.  Then look at the contents of both variables.  Either by hovering with the mouse or by specifically printing them in the debug window.
strFunctName - will be the name of the procedure being executed
strParam  - will be the value passed to that procedure

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StampITAuthor Commented:
Once I could see the name of the procedure being executed it became clear as to what was happening. Thanks.
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