IsFullScreen Property

Microsoft PowerPoint Visual Basic

Returns whether the specified slide show window occupies the full screen. Read-only MsoTriState.

MsoTriState can be one of these MsoTriState constants.
msoCTrue
msoFalse
msoTriStateMixed
msoTriStateToggle
msoTrue The specified slide show window occupies the full screen.

Example

This example reduces the height of a full-screen slide show window just enough so that you can see the taskbar.

With Application.SlideShowWindows(1)
    If .IsFullScreen Then
        .Height = .Height - 20
    End If
End With