prevElement method

Статья
08/15/2017

Resets the timeline so that the previous element in the sequence begins playing.

Syntax

var retval = seq.prevElement();

Parameters

This method has no parameters.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

When this method is invoked on the first element in a sequence, the local timeline on that element resets to 0. This method is valid only while the sequence is active.

Examples

Code example: http://samples.msdn.microsoft.com/workshop/samples/author/behaviors/prevElementnextElement.htm

<HTML XMLNS:t="urn:schemas-microsoft-com:time">
<HEAD>
<TITLE>nextElement and prevElement Methods</TITLE>
<?IMPORT namespace="t" implementation="#default#time2">

<STYLE>
    .time{ behavior: url(#default#time2);}
</STYLE>
</HEAD>

<BODY TOPMARGIN=0 LEFTMARGIN=0 BGPROPERTIES="FIXED" BGCOLOR="#FFFFFF"
    LINK="#000000" VLINK="#808080" ALINK="#000000">

<t:seq id="ts1" id="parent" begin="indefinite;"> 
    <DIV id="div1" class="time"
        style="position:relative;top:15px;left:25px;width:100px;height:100px;
            background-color:yellow;" dur="10"></DIV>
    <DIV id="div1" class="time"
        style="position:relative;top:15px;left:25px;width:100px;height:100px;
            background-color:blue;" dur="10"></DIV>
    <DIV id="div1" class="time"
        style="position:relative;top:15px;left:25px;width:100px;height:100px;
            background-color:green;" dur="10"></DIV>
    <DIV id="div1" class="time"
        style="position:relative;top:15px;left:25px;width:100px;height:100px;
            background-color:red;" dur="10"></DIV>
</t:seq>

<BR><BR>
<BUTTON id="b0" onclick="ts1.beginElement();" style="font-weight:bold;">
    Start</BUTTON>
<BUTTON id="b1" onclick="ts1.nextElement();">Next Element</BUTTON>
<BUTTON id="b2" onclick="ts1.prevElement();">Previous Element</BUTTON>
<BUTTON id="b3" onclick="ts1.endElement();">Stop</BUTTON>
</BODY>
</HTML>

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