开发ActiveX控件调用另一个ActiveX系列1——开发一个MFC ActiveX控件

ActiveX开发的教程有很多,我也从中受益匪浅,例如以下这几篇:

基本教程:http://www.cnblogs.com/guenli/articles/1629915.html

注意事项:http://jon-lt.iteye.com/blog/1676272

属性、方法开发:http://blog.csdn.net/waxgourd0/article/details/7652478

但是由于我的目的是开发一个身份证识别仪的ActiveX控件,因此我就要先仿照识别仪ActiveX开发一个ActiveX。

本文讲述如何模仿开发一个ActiveX控件,如果对此不感兴趣请阅读系列后续文章。

我用vs2012,win8操作系统。

新建MFC ActiveX控件工程

image

image

我们选择ActiveX“运行时不可见”,“关于对话框随”便选不选都可以。项目生成后结构

image

 

建属性和方法

根据身份证识别仪的测试页面,我们知道身份证的识别仪ActiveX必须有以下属性和方法

var CVR_IDCard = document.getElementById("CVR_IDCard");                    
var strReadResult = CVR_IDCard.ReadCard();
if(strReadResult == "0"{
    ClearForm();
    document.all['Name'].value = CVR_IDCard.Name; 
    document.all['Sex'].value = CVR_IDCard.Sex;    
    document.all['Nation'].value = CVR_IDCard.Nation; 
    document.all['Born'].value = CVR_IDCard.Born; 
    document.all['Address'].value = CVR_IDCard.Address; 
    document.all['CardNo'].value = CVR_IDCard.CardNo; 
    document.all['IssuedAt'].value = CVR_IDCard.IssuedAt;  
    document.all['EffectedDate'].value = CVR_IDCard.EffectedDate;  
    document.all['ExpiredDate'].value = CVR_IDCard.ExpiredDate;
    document.all['SAMID'].value = CVR_IDCard.SAMID;
    document.all['pic'].src = CVR_IDCard.Pic;
    document.all['Picture'].value = CVR_IDCard.Picture;  
    document.all['PictureLen'].value = CVR_IDCard.PictureLen  
}

我们先建方法ReadCard,从方法上看,输入参数应该为空,返回值应该是个string。在“类视图”中选择如下路径,添加方法

image

image

对于返回字符串的,我们选择BSTR类型,输入方法名,直接点完成即可。

然后需要建Name、Nation、Born等方法,看来都是字符串类型即可。同样的路径,选择“添加属性”

image

类型仍然选择字符串BSTR,选择Get/Set方法,输入属性名Name

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这时在ActiveXTestCtrl.cpp中就会有对应的属性和方法实现代码

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我们在这里做一个最简单的实现,ReadCard直接返回0,GetName返回“Hello World”

BSTR CActiveXTestCtrl::ReadCard(void)
{
    AFX_MANAGE_STATE(AfxGetStaticModuleState());

    CString strResult;
    strResult = "0";
    return strResult.AllocSysString();
}


BSTR CActiveXTestCtrl::GetName(void)
{
    AFX_MANAGE_STATE(AfxGetStaticModuleState());

    CString strResult;
    strResult = "Hello World";
    return strResult.AllocSysString();
}


void CActiveXTestCtrl::SetName(LPCTSTR newVal)
{
    AFX_MANAGE_STATE(AfxGetStaticModuleState());
    SetModifiedFlag();
}

 

生成测试

打开ActiveXTest.idl文件,这个相当于dll中的def文件那样,会有很多控件的关键信息。包括接口、classid

通过coclass是ActiveXTest,找到对应的classid是“AF7E1FF8-E4DC-47B8-BAC9-F06832ABB5F2

//  CActiveXTestCtrl 的类信息
    [
        uuid(AF7E1FF8-E4DC-47B8-BAC9-F06832ABB5F2)
    ]
    coclass ActiveXTest
    {
        [default] dispinterface _DActiveXTest;
        [default, source] dispinterface _DActiveXTestEvents;
    };

那么我们可以用原来识别仪驱动中带的测试页面,修改其中的classid为“AF7E1FF8-E4DC-47B8-BAC9-F06832ABB5F2”,就成为我们ActiveX控件的测试页了,代码如下

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<!-- saved from url=(0027)http://www.chinaidcard.com/ -->


<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>华视电子CVR100B/S测试页</title>
</head>
<body style="text-align: center">
 <form id="form1" runat="server">    
    <OBJECT classid="clsid:AF7E1FF8-E4DC-47B8-BAC9-F06832ABB5F2"
      id="CVR_IDCard" name="CVR_IDCard" width="0" height="0" >
</OBJECT>

            <script language="javascript" type ="text/javascript">
                    
function ClearForm() {
                       document.all['Name'].value = ""; 
                       document.all['Sex'].value = ""; 
                       document.all['Nation'].value = ""; 
                       document.all['Born'].value = ""; 
                       document.all['Address'].value = ""; 
                       document.all['CardNo'].value = ""; 
                       document.all['IssuedAt'].value = ""; 
                       document.all['EffectedDate'].value = ""; 
                       document.all['ExpiredDate'].value = ""; 
                       document.all['SAMID'].value = ""; 
                       document.all['pic'].src = ""; 
                       document.all['Picture'].value = "";  
                       document.all['PictureLen'].value = "";     
                       return true;
}
function Button1_onclick() {
                    var CVR_IDCard = document.getElementById("CVR_IDCard");                    
                    var strReadResult = CVR_IDCard.ReadCard();
                    if(strReadResult == "0")
                    {
                        ClearForm();
                          document.all['Name'].value = CVR_IDCard.Name;  
                          document.all['Sex'].value = CVR_IDCard.Sex;    
                          document.all['Nation'].value = CVR_IDCard.Nation; 
                          document.all['Born'].value = CVR_IDCard.Born;     
                          document.all['Address'].value = CVR_IDCard.Address; 
                          document.all['CardNo'].value = CVR_IDCard.CardNo; 
                          document.all['IssuedAt'].value = CVR_IDCard.IssuedAt;  
                          document.all['EffectedDate'].value = CVR_IDCard.EffectedDate;  
                          document.all['ExpiredDate'].value = CVR_IDCard.ExpiredDate;
                          document.all['SAMID'].value = CVR_IDCard.SAMID;
                          document.all['pic'].src = CVR_IDCard.Pic;
                          document.all['Picture'].value = CVR_IDCard.Picture;  
                          document.all['PictureLen'].value = CVR_IDCard.PictureLen  
                      }
                      else
                      {
                        ClearForm();
                        alert(strReadResult);
                      }
                    
}


function Button3_onclick() {
                    var CVR_IDCard = document.getElementById("CVR_IDCard");                    
                    CVR_IDCard.AboutBox();

}

                    </script>    
     &nbsp;华视电子CVR100 B/S 测试程序<table style=" 638px; height: 273px; border-top-style: groove; border-right-style: groove; border-left-style: groove; background-color: transparent; border-bottom-style: groove;">
         <tr>
             <td style=" 98px">
                 姓名:</td>
             <td style="text-align: left" colspan="3">
                 <input id="Text1" type="text" style=" 155px" name="Name" /></td>
             <td style=" 138px; text-align: left;" rowspan="3">
                 <img  src="" style=" 91px; height: 108px" name="pic"/></td>
         </tr>
         <tr>
             <td style=" 98px">
                 性别:</td>
             <td style=" 80px">
                 <input id="Text2" type="text" name="Sex" style=" 154px" /></td>
             <td style=" 58px">
                 民族:</td>
             <td style=" 59px">
                 <input id="Text3" type="text" name="Nation" style=" 94px" /></td>
         </tr>
         <tr>
             <td style=" 98px">
                 出生日期:</td>
             <td style="text-align: left;" colspan="3">
                 <input id="Text4" type="text" style=" 151px" name="Born" /></td>
         </tr>
         <tr>
             <td style=" 98px">
                 地址:</td>
             <td colspan="4" style="text-align: left">
                 <input id="Text5" style=" 505px" type="text" name="Address" /></td>
         </tr>
         <tr>
             <td style=" 98px">
                 身份号码:</td>
             <td colspan="4" style="text-align: left">
                 <input id="Text6" style=" 506px" type="text" name="CardNo" /></td>
         </tr>
         <tr>
             <td style=" 98px">
                 签发机关:</td>
             <td colspan="4" style="text-align: left">
                 <input id="Text7" style=" 505px" type="text" name="IssuedAt" /></td>
         </tr>
         <tr>
             <td style=" 98px">
                 有效期限:</td>
             <td colspan="4" style="text-align: left">
                 <input id="Text8" style=" 163px" type="text" name="EffectedDate" /><input id="Text10" style=" 163px" type="text" name="ExpiredDate" /></td>
         </tr>
         <tr>
             <td style=" 98px; text-align: left;">
                 模块号码:</td>
             <td colspan="4" style="text-align: left">
                 <input id="Text9" style=" 506px" type="text" name="SAMID" /></td>
         </tr>
         <tr>
             <td style=" 98px; text-align: left; height: 136px;">
                 照片编码:</td>
             <td colspan="4" style="text-align: left; height: 136px;">
                 <textarea id="TextArea1" name="Picture" style=" 509px; height: 115px"></textarea></td>
         </tr>
         <tr>
             <td style=" 98px; text-align: left">
                 编码长度:</td>
             <td colspan="4" style="text-align: left">
                 <input id="Text11" style=" 508px" type="text" name="PictureLen"/></td>
         </tr>
     </table>
                        
                                        
            
    </form>
    &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
    &nbsp; &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
    &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
    &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
    &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<input id="Button1" type="button" value="读   卡" onclick="return Button1_onclick()" />
    &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
    &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
    &nbsp; &nbsp; &nbsp; &nbsp;<input id="Button3" type="button" value="关   于" onclick="return Button3_onclick()" />
    &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
    &nbsp; &nbsp; &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
    &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
    &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;

</body>
</html>

编译项目,如果出现以下错误,别担心,不是代码问题,是因为VS没有权限注册ActiveX控件到注册表

image

警告    1    warning MSB3075: 命令“regsvr32 /s "f:ActiveXTestActiveXTestDebugActiveXTest.ocx"”已退出,代码为 5。请验证您是否有足够的权限来运行此命令。    C:Program Files (x86)MSBuildMicrosoft.Cppv4.0V110Microsoft.CppCommon.targets    1609    5    ActiveXTest

错误    2    error MSB8011: Failed to register output. Please try enabling Per-user Redirection or register the component from a command prompt with elevated permissions.    C:Program Files (x86)MSBuildMicrosoft.Cppv4.0V110Microsoft.CppCommon.targets    1621    5    ActiveXTest

我们访问生成目录

新建一个脚本setup.bat

cd /d "%~dp0"
regsvr32.exe ActiveXTest.ocx

然后右键,以管理员身份运行

image

这样就注册成功了

image

我们还可以进入注册表regedit.exe,查看HKEY+CLASSES_ROOTWow6432Node(不同操作系统这里不一样)CLSID

{AF7E1FF8-E4DC-47B8-BAC9-F06832ABB5F2}中,看到这个ID已经对应磁盘上对应路径的ocx文件了。

image

运行

如果是VS2010开发,则至此可以运行测试。但是VS2012开发的项目,仍需要做一些加工——在代码中实现IObjectSafety接口,参见如下:

用VS2012做MFC ActiveX控件并使用html、c#、c++测试容器:http://blog.csdn.net/zengraoli/article/details/17019513

编译后,打开上面准备好的“测试页.html”,点击“读卡”按钮后则显示了Hello World,用同样的方式实现其他属性。

image

至此,我们就实现了一个高仿的身份证识别仪读取ActiveX控件。

如果要伪造身份证识别仪读取结果,欺骗业务系统说数据是身份证识别仪读入的,只需要修改相关GUID。后面再说就太危险了,怕查水表,就不深入了。

附代码:代码

原文地址:https://www.cnblogs.com/anic/p/5014643.html