网页朗读程序

本文介绍了一款基于ActiveX控件的网页朗读程序开发方案,该程序支持选择不同的朗读语言和声卡,通过简单的JavaScript函数实现网页内容的朗读、停止等功能。
<html xmlns="http://www.w3.org/1999/xhtml" >
    
<head>
    
<title>网页朗读程序</title>
        
<script type="text/javascript">
            
//定义并创建ActiveX控件
            var VoiceObj = new ActiveXObject("Sapi.SpVoice");
            
            
//选择朗读语言
            function ChangeVoice() 
            
{
                
var i = parseInt( idsVoices.value );
                VoiceObj.Voice 
= VoiceObj.GetVoices().Item(i);
            }

            
            
//选择声卡
            function ChangeAudioOutput() 
            
{
                
var i = parseInt( idsAudioOutputs.value );
                VoiceObj.AudioOutput 
= VoiceObj.GetAudioOutputs().Item(i);
            }

            
//开始朗读
            function Speek(SpeekString)
            
{
                
try
                
{
                    VoiceObj.Speak(SpeekString,
1);
                }

                
catch(exception)
                
{
                    alert(exception.description);
                }

            }

            
            
//停止朗读
            function Stop()
            
{
                
try
                
{
                    VoiceObj.Speak(
""2);
                }

                
catch(exception)
                
{
                    alert(exception.description);
                }

            }

            
//初始化页面
            function InitializeControls()
            
{
                
var VoicesToken = VoiceObj.GetVoices();
                
var AudioOutputsToken = VoiceObj.GetAudioOutputs();
                
forvar i=0; i<VoicesToken.Count; i++ )
                
{
                    
var oOption = document.createElement("option");
                    idsVoices.options.add(oOption);
                    oOption.innerText 
= VoicesToken.Item(i).GetDescription();
                    oOption.value 
= i;
                }

                
forvar i=0; i<AudioOutputsToken.Count; i++ )
                
{
                    
var oOption = document.createElement("option");
                    idsAudioOutputs.options.add(oOption);
                    oOption.innerText 
= AudioOutputsToken.Item(i).GetDescription();
                    oOption.value 
= i;
                }

            }

        
</script>
    
</head>
<body>
    
<div style="text-align: center">
        
<table border="1" cellpadding="0" cellspacing="0" style="width: 600px">
            
<tr>
                
<td align="left" colspan="4" valign="top">
                
</td>
            
</tr>
            
<tr>
                
<td align="left" colspan="4" valign="top">
                
</td>
            
</tr>
            
<tr>
                
<td align="left" valign="top">
                    获取朗读语言包
                
</td>
                
<td align="left" valign="top">
                    
<select id="idsVoices" onchange="ChangeVoice()" style="width: 234px">
                    
</select>
                
</td>
                
<td align="left" valign="top">
                    获取声卡的信息
                
</td>
                
<td align="left" valign="top" style="width: 187px">
                    
<select id="idsAudioOutputs" onchange="ChangeVoice()" style="width: 234px">
                    
</select>
                
</td>
            
</tr>
            
<tr>
                
<td align="left" colspan="4" valign="top" style="text-align: center">
                    
<href="#" onmouseover='Speek("测试程序")' onmouseout="Stop()" >测试程序</a>
                
</td>
            
</tr>
        
</table>
    
</div>
    
<script type="text/javascript">
        InitializeControls();
    
</script>
</body>
</html>
 
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