systemCaptions Attribute

Indicates whether or not to display a text equivalent of the audio portion of the presentation.

dhtml语法

HTML <ELEMENT systemCaptions= ... >
Scripting N/A

HTML	<ELEMENT systemCaptions= ... >
Scripting	N/A

DHTML可能的值

on The user's machine is set to see captions.
off The user's machine is not set to see captions.

Remarks

Intended for audiences with hearing disabilities, those learning to read, or anyone who wants or needs this information.
Evaluates to true if the user preference matches this attribute value. Evaluates to false if they do not match.
If the systemCaptions attribute is used on an HTML element within a switch statement, is not necessary to apply the time2 behavior to the html element.

dhtml代码范例

<t:switch id=switchID>
<p id=choice1 systemCaptions="on">on</p>
<p id=choice2 systemCaptions="off">off</p>
</t:switch>

Applies To

A, ACRONYM, ADDRESS, t:ANIMATE, t:ANIMATECOLOR, t:ANIMATEMOTION, t:ANIMATION, AREA, t:AUDIO, B, BIG, BLOCKQUOTE, BUTTON, CAPTION, CENTER, CITE, CODE, DD, DEL, DIR, DIV, DL, DT, EM, FIELDSET, FONT, FORM, hn, HR, I, IFRAME, IMG, t:IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=hidden, INPUT type=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, INS, KBD, LEGEND, LI, LISTING, MARQUEE, t:MEDIA, MENU, OL, OPTION, P, PLAINTEXT, playItem, PRE, Q, t:REF, S, SAMP, t:SEQ, t:SET, SMALL, SPAN, STRIKE, STRONG, SUB, SUP, t:SWITCH, TABLE, TBODY, TD, TEXTAREA, TFOOT, TH, THEAD, time2, TR, TT, U, UL, VAR, t:VIDEO, XMP

更多语法参考

introduction to html+time, systembitrate, systemlanguage, systemoverduborsubtitle, time2

on	The user's machine is set to see captions.
off	The user's machine is not set to see captions.