PDFium Component Docs

OnUnsupportedFeature property

Component: TPdf · Unit: PDFium

Pokreće se kada dokument koristi PDF značajku koju PDFium ne implementira (npr. potpune XFA obrasce, 3D anotacije, multimediju)

Syntax

property OnUnsupportedFeature;

Description

Fired when the document uses a PDF feature that PDFium does not implement (e.g. XFA full forms, 3D annotations, multimedia).

Inspect the feature parameter to decide how to inform the user; the document still opens.

Omotava odgovarajući PDFium API i izlaže ga kao član instance TPdf tako da korisnici ne moraju izravno upravljati FPDF_DOCUMENT ručkama.

Remarks

Uvijek provjerite Pdf1.Active prije pozivanja operacija na razini stranice; metode koje zahtijevaju otvoreni dokument inače podižu EPdfError.
Document-edit methods (AddPage / DeletePage / UpdatePage / CreateAnnotation) leave the in-memory document dirty — remember to call SaveAs to persist.
Metode klase (LoadLibrary / UnloadLibrary / GetRecommendedV8Flags) mogu se pozvati bez instance TPdf.

Example

procedure TForm1.PdfOnUnsupportedFeature(Sender: TObject);
begin
// react to OnUnsupportedFeature
end;

See Also

XFA, TPdfFeature