vba - Powerpoint Event handling - Prevent New Presentation -


i creating powerpoint add-in. restrict user either:

  • create new presentation
  • open existing presentation

i have used this tutorial/overview trap newpresentation , presentationopen events. close presentation initialized through these events before user can interact it. when try close using .close method, receive error (screenshot below).

in class module, have following trap newpresentation event. works fine, receive message box , pres valid presentation object can passed closenewpres routine.

private sub pptevent_newpresentation(byval pres presentation) msgbox "you cannot use charting tool multiple presentations.", vbinformation closenewpres pres end sub

in standard module, have closenewpres routine, expect close "new" presentation:

sub closenewpres(pres presentation)     application.presentations(pres.name).close     'pres.close '<~~ fails.' end sub

i receive following error.

screenshot of error message

any thoughts on why happening? or can close these presentations?

in opinion need use event quite similar 1 used:

private sub ppapp_afternewpresentation(byval pres presentation)

if set pres.close within proposed 1 closes new created presentation.


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