FocusFormField - TPdfView

Component: TPdfView · Unit: PDFium

Radi s logičkim kursorom fokusa AcroForma na trenutačnoj stranici za tijekove rada s tipkovnicom, govorom i pristupačnošću

Syntax

function FocusFormField(Index: Integer): Boolean;

Parameters

Index

Integer. Zero-based AcroForm widget index on the current viewer page

Return Value

Boolean. True when Index is valid for the current viewer page and the logical focus cursor is updated

Description

The form-focus members maintain a logical cursor over AcroForm widget annotations na trenutnoj stranici. The cursor follows FormFieldTabOrder and returns -1 when no current-page field is focused

Use these members when an application needs to walk fields from code, drive voice-assisted form filling, or expose the active field to an accessibility layer without relying on mouse hit testing

Remarks

API names, type names, and PDF terms keep their original spelling so code search remains reliable
Call the member only after the owning document or viewer is active unless the syntax describes an event or design-time property

Example

if Pdf1.FormFieldCount > 0 then
Pdf1.FocusFormField(0);
ShowMessage(Pdf1.FocusedFormFieldText);

FocusFormField method