screenco

screenco — A screen with associated areas used in callouts.

Synopsis

screenco ::=

Sequence of:
- info? (db.titleforbidden.info)
- areaspec
- screen
- Zero or more of:
  - calloutlist

Attributes

Common attributes and common linking attributes.

No additional attributes.

Additional Constraints

If this element is the root element, it must have a version attribute.

Description

The callouts, such as numbered bullets, are an annotation mechanism. In an online system, these bullets are frequently hot, and clicking on them navigates to the corresponding annotation.

A screenco is a wrapper around an areaspec and a screen. An areaspec identifies the locations (coordinates) in the screen where the callouts occur. The screenco may also contain the list of annotations in a calloutlist, although the calloutlist may also occur outside of the wrapper, elsewhere in the document.

It is also possible to embed co elements directly in the verbatim text, in order to avoid the overhead of calculating the correct coordinates. If you decide to follow this route, use a screen and a calloutlist without the screenco wrapper. A screenco must specify at least one coordinate.

For a complete description of callouts, see callout.

Processing expectations

Formatted as a displayed block. This element is displayed “verbatim”; whitespace and line breaks within this element are significant.

The mandatory processing expectations of a screenco are minimal: a system is expected to render the program listing and the callout list, if present.

If explicit co elements are embedded in a screen, they must generate appropriate callout marks.

In online environments, the processing system may be able to instantiate the linking relationships between the callout marks in the program listing and the annotations. Some systems may even be able to go a step further and generate the callout marks automatically from the coordinate information, but this level of sophistication is not mandatory.

Attributes

Common attributes and common linking attributes.

any attribute: Any attribute in any other explicit namespace

Parents

These elements contain screenco: abstract, acknowledgements, annotation, answer, appendix, article, bibliodiv, bibliography, bibliolist, blockquote, callout, calloutlist, caption (db.caption), caution, chapter, colophon, constraintdef, cover, danger, dedication, entry, example, figure, footnote, glossary, glossdef, glossdiv, glosslist, important, index, indexdiv, informalexample, informalfigure, itemizedlist, legalnotice, listitem, meta (db.meta.content), msgexplan, msgtext, note, orderedlist, para, partintro, preface, procedure, qandadiv, qandaset, question, refsect1, refsect2, refsect3, refsection, refsynopsisdiv, result, revdescription, sect1, sect2, sect3, sect4, sect5, section, setindex, sidebar, simplesect, step, taskprerequisites, taskrelated, tasksummary, td, textobject, th, tip, toc, tocdiv, topic, variablelist, warning.

Children

The following elements occur in screenco: areaspec, calloutlist, info (db.titleforbidden.info), screen.

Examples

 1 |<article xmlns='http://docbook.org/ns/docbook'>
   |<title>Example screenco</title>
   | 
   |<screenco>
 5 |<areaspec>
   |<area xml:id="dos" coords='5'/>
   |<area xml:id="autoexec.bat" coords='10'/>
   |<area xml:id="command.com" coords='11'/>
   |<area xml:id="config.sys" coords='12'/>
10 |<area xml:id="wina20.386" coords='14'/>
   |</areaspec>
   |<screen> Volume in drive C is SYSTEM         Serial number is 2350:717C
   | Directory of  C:\
   | 
15 |10/17/97   9:04         &lt;DIR>    bin
   |10/16/97  14:11         &lt;DIR>    DOS
   |10/16/97  14:40         &lt;DIR>    Program Files
   |10/16/97  14:46         &lt;DIR>    TEMP
   |10/17/97   9:04         &lt;DIR>    tmp
20 |10/16/97  14:37         &lt;DIR>    WINNT
   |10/16/97  14:25             119  AUTOEXEC.BAT
   | 2/13/94   6:21          54,619  COMMAND.COM
   |10/16/97  14:25             115  CONFIG.SYS
   |11/16/97  17:17      61,865,984  pagefile.sys
25 | 2/13/94   6:21           9,349  WINA20.386</screen>
   |<calloutlist>
   |<callout arearefs="dos">
   |<para>This directory holds <trademark>MS-DOS</trademark>, the
   |operating system that was installed before <trademark>Windows
30 |NT</trademark>.
   |</para>
   |</callout>
   | 
   |<callout arearefs="autoexec.bat command.com config.sys">
35 |<para>System startup code for DOS.
   |</para>
   |</callout>
   | 
   |<callout arearefs="wina20.386">
40 |<para>Some sort of <trademark>Windows 3.1</trademark> hack for some 386 processors,
   |as I recall.
   |</para>
   |</callout>
   |</calloutlist>
45 |</screenco>
   | 
   |</article>

   | Volume in drive C is SYSTEM         Serial number is 2350:717C
   | Directory of  C:\
   | 
   |10/17/97   9:04         <DIR>    bin
   |10/16/97  14:11         <DIR>    DOS                       ①
   |10/16/97  14:40         <DIR>    Program Files
   |10/16/97  14:46         <DIR>    TEMP
   |10/17/97   9:04         <DIR>    tmp
   |10/16/97  14:37         <DIR>    WINNT
   |10/16/97  14:25             119  AUTOEXEC.BAT              ②
   | 2/13/94   6:21          54,619  COMMAND.COM               ③
   |10/16/97  14:25             115  CONFIG.SYS                ④
   |11/16/97  17:17      61,865,984  pagefile.sys
   | 2/13/94   6:21           9,349  WINA20.386                ⑤

①: This directory holds MS-DOS, the operating system that was installed before Windows NT.
② ③ ④: System startup code for DOS.
⑤: Some sort of Windows 3.1 hack for some 386 processors, as I recall.

Compare this example with the example for co.