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1-based index of this control within its radio group

Source: R/form_fields.R
pdf_form_field_control_index.Rd

For a radio button widget, returns this control's 1-based index among its siblings; NA otherwise. Wraps FPDFAnnot_GetFormControlIndex (1-based conversion applied).

Usage

pdf_form_field_control_index(field)

Arguments

field

A pdfium_form_field handle from pdf_form_fields().

Value

Integer scalar or NA.