THotPDF.SetFormFieldAdditionalAction Method

Method summary: THotPDF.SetFormFieldAdditionalAction MethodTHPDFActionBuilder under the field widget /AA dictionary

Declaration

procedure SetFormFieldAdditionalAction(const FieldName: AnsiString; Trigger: THPDFFormFieldActionTrigger; Action: THPDFActionBuilder);

HPDFDoc

Name	Purpose
`FieldName`	Existing AcroForm field name to find in the generated field list
`Trigger`	Field additional-action trigger: KeyStroke, Format, Validate, or Calculate
`Action`	Action chain built with THPDFActionBuilder`THPDFActionBuilder`

Call this method after creating the target field and before EndDocEndDoc
The method replaces any existing action for the same trigger key and keeps other /AA entries unchanged
Use ClearFormFieldAdditionalAction to remove one field trigger entry without disturbing other field actions
Use the named helpers in THotPDFFormFieldActionConvenienceMethods when code should call one method per field or widget trigger
The method replaces any existing action for the same trigger key and keeps other /AA entries unchanged
Use ClearFormFieldAdditionalAction to remove one field trigger entry without disturbing other field actionsAttachFieldKeyStrokeAction, AttachFieldFormatAction, AttachFieldValidateAction, or AttachFieldCalculateAction for the JavaScript-only convenience path