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HTML page, test JS call to C function

不言Original: 2018-06-05 15:36:281824browse

The following is an HTML page for you to test a simple example of JS calling C functions. It’s pretty good. I’ll share it with you now and give it as a reference. Come and take a look together

Note it here so you can check it when you need to use it later!

<HTML>
<HEAD>
<META NAME="GENERATOR" Content="Microsoft Visual Studio">
<meta http-equiv="content-type" content="text/html;charset=gbk">
<TITLE>HTML页面，测试JS对C函数的调用</TITLE>
</HEAD>
<BODY>  
  <input type="button" value="测试JS对C++无参函数的调用(Window Binding)" onclick="javascript:testCallFunc()" />
  <br/><hr /><br />
  <input type="button" value="测试JS调用多参数C++函数(Window Binding)" onclick="javascript: testCallFunc2()" /><input id="func2_input1" type="text" value="这里输入参数1" onclick="  if (this.value == &#39;这里输入参数1&#39;) { this.value = &#39;&#39; }" onblur="if(this.value==&#39;&#39;){this.value=&#39;defaultValue&#39;}" /><input id="func2_input2" type="text" value="这里输入参数2" onclick="  if (this.value == &#39;这里输入参数2&#39;) { this.value = &#39;&#39; }" onblur="if(this.value==&#39;&#39;){this.value=&#39;defaultValue&#39;}"/>
  <br /><hr /><br />
  <input type="button" value="测试，调用C++函数修改JS Window对象属性(Window Binding)" onclick="javascript: testCallFunc3()" /><input id="func3_input" type="text" value="这里输入全局变量的值" onclick="  if (this.value == &#39;这里输入全局变量的值&#39;) { this.value = &#39;&#39; }" onblur="if(this.value==&#39;&#39;){this.value=&#39;defaultValue&#39;}" />
  <br /><hr/><br />
  <input type="button" value="测试取C++在JS Window对象中设置的属性(Window Binding)" onclick="javascript:testGetGlobalVar()" />
  <br /><hr /><br />
  <input type="button" value="测试JS调用多参数C++函数(扩展方式)" onclick="javascript: alert(&#39;测试JS调用多参数C++函数(扩展方式)=>&#39; + kagulaTest.myfunc(document.getElementById(&#39;func2_input1&#39;).value, document.getElementById(&#39;func2_input2&#39;).value))"/>
  <br /><hr /><br />
</BODY>
</HTML>


<script>
  //http://www.w3schools.com/jsref/event_onclick.asp
  //document.write(&#39;Hello World!<br/>&#39;);  
  //测试JS调用C++，无参函数
  function testCallFunc()
  {
    alert(window.myKagulaFunc());
  }
  //测试JS调用C++，带两个参数函数
  function testCallFunc2() {
    var arg1 = document.getElementById("func2_input1").value;
    var arg2 = document.getElementById("func2_input2").value;
    alert(window.myKagulaFunc2(arg1,arg2));
    //正确返回"head and tail"字符串。
  }
  function testCallFunc3()
  {
    var oldValue = window.myKagulaVal;
    var arg = document.getElementById("func3_input").value;
    window.myKagulaFunc3(arg);
    var newValue = window.myKagulaVal;
    alert("新的值：" + newValue + "\r\n老的值：" + oldValue);
  }
  //测试JS读取C++设置的变量
  function testGetGlobalVar()
  {
    alert(window.myKagulaVal);
  }
  //测试c++调用JS
  function myFunction() {
    //document.getElementById("demo").style.color = "red";
    alert("C++调用JS测试成功!");
  }
</script>

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