# `PdfElixide.Form.Field.Button.Flags`
[🔗](https://github.com/r8/pdf_elixide/blob/v0.16.0/lib/pdf_elixide/form/field/button/flags.ex#L1)

The `/Ff` field flags of a button field (ISO 32000-1 Table 227), alongside the
three every field carries (Table 226).

## Fields

  * `:read_only` — the field may not be changed by the user.
  * `:required` — the field must have a value when the form is submitted.
  * `:no_export` — the field is omitted from a submission.
  * `:no_toggle_to_off` — one radio button in the group must always be
    selected; clicking the selected one does not clear it.
  * `:radio` — the field is a group of radio buttons.
  * `:push_button` — the field is a push button, which holds no value and acts
    only through its `/AA` actions.
  * `:radios_in_unison` — radio buttons in the group that share an on-state
    name are selected and cleared together.
  * `:raw` — the undecoded `/Ff` integer, for bits this struct does not name.

`:radio` and `:push_button` are the two bits
`PdfElixide.Form.Field.Button`'s `:kind` reports, with `:push_button` taking
precedence over `:radio` on a field that sets both. See the "Field kinds and
flags" section of the [Forms](guides/forms.md) guide.

# `t`

```elixir
@type t() :: %PdfElixide.Form.Field.Button.Flags{
  no_export: boolean(),
  no_toggle_to_off: boolean(),
  push_button: boolean(),
  radio: boolean(),
  radios_in_unison: boolean(),
  raw: non_neg_integer(),
  read_only: boolean(),
  required: boolean()
}
```

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*Consult [api-reference.md](api-reference.md) for complete listing*