Active Property

Microsoft PowerPoint Visual Basic

MsoTriState can be one of these MsoTriState constants.
msoCTrue
msoFalse
msoTriStateMixed
msoTriStateToggle
msoTrue The specified pane or window is active.

expression.Active

expression    Required. An expression that returns of the objects in the Applies To list.

Example

This example checks to see if the presentation file "test.ppt" is in the active window. If not, it saves the name of the presentation that is currently active in the variable oldWin and activates the "test.ppt" presentation.

With Application.Presentations("test.ppt").Windows(1)
    If Not .Active Then
        Set oldWin = Application.ActiveWindow
        .Activate
    End If
End With