THPDFPage.SetAnnotationAdditionalAction Method

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procedure SetAnnotationAdditionalAction(Annot: THPDFDictionaryObject; Trigger: THPDFAnnotationActionTrigger; Action: THPDFActionBuilder);

HPDFDoc

Nimi	Tarkoitus
`Annot`	Annotation dictionary returned by the most recent annotation creation call or another annotation lookup
`Trigger`	Additional-action trigger, such as mouse enter, mouse exit, mouse down, mouse up, set focus, or lost focus
`Action`	Action chain built with THPDFActionBuilder

The method replaces any existing action for the same trigger key and keeps other /AA entries unchanged
Use ClearAnnotationAdditionalAction to remove one annotation additional-action entry without rebuilding the annotation dictionary
THPDFActionBuilder.ThenAction chains are preserved under the emitted /Next entry
PDF/A and PDF/X restrictions are enforced by the builder when JavaScript, SubmitForm, Launch, or other restricted action types are used
Use SetAnnotationJavaScriptAction for the JavaScript-only convenience path