On this page:
slide?
most-recent-slide
retract-most-recent-slide
re-slide
slide->pict

2.2 Slide Registration

procedure

(slide? v)  boolean?

  v : any/c
Returns #t if v is a slide produced by most-recent-slide or retract-most-recent-slide.

procedure

(most-recent-slide)  slide?

Returns a slide structure that may be supplied to re-slide to make a copy of the slide or slide->pict to re-extract the entire slide as a pict.

Cancels the most recently created slide, and also returns a slide structure that may be supplied to re-slide to restore the slide (usually in a later position).

procedure

(re-slide slide [pict])  void?

  slide : slide?
  pict : pict? = (blank)
Re-inserts a slide, lt-superimposeing the given additional pict.

procedure

(slide->pict slide)  pict?

  slide : slide?
Converts a complete slide to a pict. The bounding box of the result corresponds to the slide within its margins.