Is there a "before" slideShowBegin event?

[S.Creek]

Hi all,
I'm trying to execute things in my add-in , but i would like them to
occur before the
SlideShowBegin event is fired.
the problem is that when that event is fired, the user already see the
first slide, so any manipulation i do looks ugly.

any code snippet would is welcome.

thanks

S,Creek

 

[S.Creek]

thats an approach i tried to take, but the problem is that i can only
insert the "dummy" slide once the presentation started, i.e after the
event

i need to have something there before the presentation starts

 

[S.Creek]

assuming i had the slide before, if i click the "slide show from
current slide" button and im not on the second slide, i will then go
back to my added "dummy" slide and then continue as user requested,
that creates kind of flickering on the slide show, since the show has
already started.

I guess another way to do it:

is there a way to override the "slide show from current slide" button,
if i could do that, i could add my custom actions and then run the
presentation as requested by the user.

im writing my addin with C# but any code snippet or description will
help.

 

[S.Creek]

i am trying to run some operations, that will only happen when running
the presentation, like for example, hiding a shape that is visible
during the time a user edits the presentation but is invisible while
presenting the slideshow

for that i need to identify when the user clicked the "run
presentation" button, process the relevant tasks over the slides/shapes
collection (i.e. hide the relevant shapes), and only then present the
slide show.

the problem is: if i do my processes in the SlideShowBegin event, a
shape that suppose to be hidden will still be there for a second before
i get to hide it, this creates in consistency and flickering feeling
for the viewer.

if i add a "dummy" slide, still, i can transfer the slideshow to that
slide for the time it takes me to hide the shape, but for an instance ,
the user will see that move from his current slide to the "dummy"
slide.

something like the "BeforeSave" event but for show presentation button
will do the job.

i had not seen any event like that when browsing the PowerPoint object,
so i wonder if there is a way to override PowerPoint somehow, in
regards to that specific need.

i hope it is clearer now, if not, i will be happy to provide more info.

S.

 

[S.Creek]

Thanks Steve, that is what i thought :-(

if i come to something i will post it here.
right now i think i will just implement my own toolbar button.
this way i can run all my processes before presentation starts.

S