THotPDF.SetFormFieldAdditionalAction Method

THPDFActionBuilder تحت /AA الخاصة بأداة الحقلملخص الطريقة: THotPDF.SetFormFieldAdditionalAction Method

التصريح

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

HPDFDoc

الاسم	الغرض
`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`

EndDoc
يستبدل التابع أي إجراء قائم لنفس مفتاح المحفّز ويبقي بقية مداخل /AA دون تغيير
استخدم ClearFormFieldAdditionalAction لإزالة مدخل محفّز واحد للحقل دون إفساد بقية إجراءات الحقل
استخدم المساعدات المسماة في THotPDFFormFieldActionConvenienceMethodsCall this method after creating the target field and before EndDoc
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 AttachFieldCalculateActionUse AttachFieldKeyStrokeAction, AttachFieldFormatAction, AttachFieldValidateAction, or AttachFieldCalculateAction for the JavaScript-only convenience path