`pdfSetBookmarkDest`

Set a bookmark's destination-array kind and its up-to-4

BOOL32 __stdcall pdfSetBookmarkDest(PPDF IPDF, int32_t ABmk, int32_t DestType, double a, double b, double c, double d);

Delphi

function pdfSetBookmarkDest(const IPDF: PPDF; ABmk, DestType: Integer; a, b, c, d: Double): LongBool; stdcall;

Purpose. Set a bookmark's destination-array kind and its up-to-4 numeric parameters (zoom factor and/or left/top/right/bottom, per DestType — the same shape as pdfPageLinkEx's destination parameters, Links).

Description. Verified major parameter reduction: a, b, c, and d are all accepted by the ABI but never passed through — SetBookmarkDestH is called with only ABmk and DestType; the four numeric destination-array parameters have zero effect regardless of what is passed. Combined with pdfGetBookmark's hardcoded dtXY_Zoom report above, this means bookmark destinations in this SDK cannot actually be configured beyond whatever fixed, implicit destination-array shape SetBookmarkDestH itself hardcodes internally — the richer per-DestType zoom/rect control the ABI's shape implies (matching pdfPageLinkEx's genuinely-functional equivalent for Links) does not exist for bookmarks.

Parameters.

Parameter	Description
`IPDF`	Document handle.
`ABmk`	Bookmark handle.
`DestType`	Destination-array kind — the only parameter besides `ABmk` that actually reaches the implementation.
`a, b, c, d`	All four accepted but silently dropped — zero effect.

Return value. True if ABmk resolves; False otherwise (this does not indicate that a/b/c/d were honored — they never are).

See also. pdfPageLinkEx (the genuinely functional Link-annotation equivalent, for contrast).

C# (P/Invoke)

wrappers/dotnet/LumasPdf.cs

[return: MarshalAs(UnmanagedType.Bool)]

Area

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