问个网页中使用OCX传参数的问题

jixiaoqiang 2006-10-23 03:25:53

随便写了一个activeform的Ocx,里面增加了一个myIP属性,然后打包发布，之后修改html文件，增加了
<param段等内容，现在发现网页加载后，param段设置的初始值好像不起作用，控件里面显示的值依旧是0,而用javascript写的倒是起作用，请问为什么param段不起作用??

说明:既然javascript的语句执行没有问题，说明ocx本身没有问题,属性已经暴露给外面了。

<HTML>
<H1> C++Builder 6 ActiveX Test Page </H1><p>
You should see your C++Builder 6 forms or controls embedded in the form below.
<HR><center><P>
<OBJECT
classid="clsid:74B351BD-427D-43F7-A406-319DAECBBE84"
codebase="http://JXQ-XGY/BaiChiProj1.inf"
id="baichi0"
width=650
height=450
align=center
hspace=0
vspace=0
>
<PARAM NAME="myIP" VALUE="100">

</OBJECT><br>
<input type="button" value="测试" onClick="javascript:document.all.baichi0.myIP=5;">
</HTML>

...全文

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jixiaoqiang 2006-10-24

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请问CB中有相应的函数或者帮助吗?

jxm1985 2006-10-24

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学习

jixiaoqiang 2006-10-23

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再顶一次

jixiaoqiang 2006-10-23

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onega写了一片文章,但是是关于vc的,不知道CB中怎样实现!

short answer: implement IPersistPropertyBag interface, long answer is given by others

I've been spending some time trying to figure out
how to code the "get custom property" from the value that
I put in the PARAM tag in my HTML page.
In fact it's really easy, the problem is that it was difficult to find
a easy sample talking about MFC implementation and not ATL.
SO...
1. Create you OLE Control using Active X wizard
2. Add a property using the GET/SET or the GlobalVariable
3. if on step 2 you created using the GET/SET , add a global variable
on your myolecontrolctl.cpp for example m_property
4. Modify by hand the PropExchange method of your control
using the PX_String, PX_Short, PX_....
depending of the type of variable you're using
you'll add the following
if your variable is a CString
void CActiveAdvCtrl::DoPropExchange(CPropExchange* pPX)
{
ExchangeVersion(pPX, MAKELONG(_wVerMinor, _wVerMajor));
COleControl::DoPropExchange(pPX);
if (pPX->GetVersion() == (DWORD)MAKELONG(_wVerMinor, _wVerMajor))
{
PX_String(pPX,_T("myproperty"),m_property);
PX_String(pPX,_T("myproperty1"),m_property1);
}
}
where m_property is the variable and myproperty is the external name you gave
when you created the property.
So when calling the page from the browser, the PARAM will be loaded
to the different variables
<OBJECT CLASSID="clsid:1AEDB630-4A08-4C22-BC74-0629C264B2CA"
ALIGN="CENTER" WIDTH=100 HEIGHT=100 ID="DActiveX1">
<PARAM NAME="myproperty" VALUE="123">
<PARAM NAME="myproperty1" VALUE="555">
<PARAM NAME="Enabled" VALUE=1>
<PARAM NAME="_ExtentX" VALUE="0">
<PARAM NAME="_ExtentY" VALUE="0">
</OBJECT>
Hope this help
Anthony.
"Alexander Nickolov" <agnickolov@geocities.com> wrote in message news:<#4Ma63wmBHA.2084@tkmsftngp04>...
> Did you implement IPersistPropertyBag on your control?
> ============
> Alexander Nickolov
> Microsoft MVP [VC], MCSD
> email: agnickolov@geocities.com
> MVP VC FAQ: http://www.mvps.org/vcfaq
> =========================
> ============
>
> "Anthony" <anthonyg@passinglane.com> wrote in message
> news:cff4bb7e.0201111456.7b620a25@posting.google.com...
> > Hi Everyone,
> >
> > I created an active X in VC6
> > Everything seems to work perfectly if I call my methods and properties
> > from a javascript.
> > BUT what ever I put in the PARAM tag are not initialized
> > my properties Get/Set are not called.. !
> >
> > Any idea or anything I'm doing wrong?
> >
> > Thanks for your help.

jixiaoqiang 2006-10-23

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谢谢xxuu503
帖子又转到CB中来了,那么CB中如何实现象VC中的函数功能呢?
各位高人救命,待会另开贴送分.

xxuu503 2006-10-23

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要自己读取的吧

VC6.0是

ExchangeVersion(pPX, MAKELONG(_wVerMinor, _wVerMajor));
COleControl::DoPropExchange(pPX);

// TODO: Call PX_ functions for each persistent custom property.
PX_String(pPX,"URL",URL);

C++ builder不知道

jixiaoqiang 2006-10-23