Using AddClip

[rs0xFFFF]

Is this allowed? Does Clipper make its own copy of the Path data, or does the Path have to stay because it's being referenced only?

  SetLength(Path, ..);
  Path[0].x := ..;
  Path[0].y := ..;
  ...
  Clp.AddSubject(Path)

  SetLength(Path, ..);
  Path[0].x := ..;
  Path[0].y := ..;
  ...
  Clp.AddClip(Path);

  SetLength(Path, ..);
  Path[0].x := ..;
  Path[0].y := ..;
  ...
  Clp.AddClip(Path);

  Clp.Execute(ctDifference, frEvenOdd, SolutionPaths);

[AngusJohnson]

Does Clipper make its own copy of the Path data, or does the Path have to stay

Good question, but rest assured that the path data is copied, not referenced.