SetFormFieldFlagsAt method

Esta entrada API preserva identificadores, assinaturas, blocos de código e termos PDF em sua forma original.

Sets the Flags bit field on the form field at the given coordinates.

Sets the Flags bit field on the form field at the given coordinates.

Use to toggle ReadOnly, Required, Multiline, Password, etc. without re-acquiring the index.

Wraps the corresponding PDFium API and exposes it as a TPdf instance member so consumers do not have to manage FPDF_DOCUMENT handles directly.

• Always check Pdf1.Active before calling page-scoped operations; methods that require an open document raise EPdfError otherwise.
• Document-edit methods (AddPage / DeletePage / UpdatePage / CreateAnnotation) leave the in-memory document dirty — remember to call SaveToFile to persist.
• Class methods (LoadLibrary / UnloadLibrary / GetRecommendedV8Flags) can be called without a TPdf instance.

FormFieldInfoAt, FormFieldAt