pdfGetOutlineTargetPage
Get the target page number for an outline node.
int pdfGetOutlineTargetPage(PDFViewerHandle viewer, PDFOutlineHandle outline)
This function returns the target page number for the specified outline
entry.
In general, outline targets can be any valid PDF link - including
links to other documents, URLs, etc. - although they are most often
links within the current document.
The pdfGetOutlineTargetPage function will return 0 for
any target not in the same PDF file.
C:
int pg;
pg = pdfGetOutlineTargetPage(viewer, outline);