public bool MovePreviousSlide()

Public Function MovePreviousSlide As Boolean

Return Value

This method has the effect of setting the CurrentSlide to the previous slide in the presentation's slide collection. The resulting CurrentSlide when calling this method may differ based on the presentation's current PresentationMode.

When PresentationMode is Editing or None, this method will set the CurrentSlide to the previous slide in the collection even if its Visible property is false and if the slide is not in the presentation's SlideRange. If the current slide is the first slide in the presentation's slide collection, calling this method will set the CurrentSlide to null.

When PresentationMode is Presenting, this method will set the CurrentSlide to the previous slide in the collection within the presentation's SlideRange, skipping slides whose Visible property is false. If the current slide is the first slide in the presentation's SlideRange, calling this method will end the presentation returning the presentation's PresentationMode to the mode it was in before the presentation started.