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                                                     934
          CHAPTER 10                                                          Document Interchange



          PrintField attributes enable screen readers to identify page content that represents
          form fields (radio buttons, check boxes, push buttons, and text fields). These at-
          tributes enable the controls in print form fields to be represented in the logical
          structure tree and to be presented to assistive technology as if they were read-only
          interactive fields.

                                     TABLE 10.35 PrintField attributes
KEY           TYPE           VALUE

Role          name           (Optional; not inheritable) The type of form field represented by this graphic.
                             The following values are defined:
                                rb            Radio button
                                cb            Check box
                                pb            Push button
                                tv            Text-value field
                             The tv role is used for interactive fields whose values have been converted to text
                             in the non-interactive document. Examples include text edit fields, numeric
                             fields, password fields, digital signatures, and combo boxes. The text that is the
                             value of the field is the content of the Form element (see Table 10.27 on page
                             912).
                             Default value: None specified.

checked       name           (Optional; not inheritable) The state of a radio button or check box field. The val-
                             ue may be on, off (default), or neutral.
                             Note: Although the case (capitalization) used for this key is unusual, it is still cor-
                             rect.

Desc          text string    (Optional; not inheritable) The alternate name of the field, similar to the value
                             supplied in the TU entry of the field dictionary for interactive fields (see
                             Table 8.69).


          Table Attributes

          Table attributes are defined as attribute objects whose O (owner) entry has the
          value Table or is one of the format-specific owner names listed in Table 10.28 on
          page 914. Table 10.36 lists the standard table attributes.

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