function FocusedFormFieldName: WString;
WStringLogički kursor obrasca slijedi FocusFormField, FocusNextFormField, FocusPreviousFormFieldield, and FormFieldTabOrder
Use these accessors when a keyboard or voice UI needs to announce the focused field value, label, and metadata even when pdfium has no active text caret
Name := PdfView1.FocusedFormFieldName;