Wraps FPDFPage_InsertClipPath, which inserts the clip path before
the page's content. PDFium does not take ownership of the clip path:
clip_path stays open, can be inserted into other pages, and is
released by pdf_clip_path_close() or when it is garbage-collected.
Arguments
- page
A
pdfium_pagefrompdf_page_load()orpdf_page_new(). Parent doc must be readwrite.- clip_path
A
pdfium_clip_boxfrompdf_clip_path_new().