classid 属性は、物体の実装の場所を指定します。
OBJECT element
object 要素 classid 属性
identifies an implementation
と書かれています。
%URI です。
CDATA です。
classid が使われるのはほとんど
他の使用例・実装例があったら教えてください。
(
classid 属性 (実装)
の一方または両方を指定できます。
ただし、両方があるときの挙動は規定されていません。
可搬性のため、実装が追加のデータを取り寄せる必要があるときには
code の型のヒントとして code の資源は
<OBJECT codetype="application/java-archive"
classid="java:program.start"
codebase="http://foooo.bar.example/java/myimplementation/">
<!-- 代替文 -->
</OBJECT><P><OBJECT classid="clsid:663C8FEF-1EF9-11CF-A3DB-080036F12502"
data="http://www.acme.example/ole/clock.stm">
Clock: This application is not supported.
</OBJECT><P><OBJECT classid="http://www.miamachina.it/analogclock.py"> </OBJECT>
(
<OBJECT id="myControl" classid="http:ControlLibrary1.dll#ControlLibrary1.myControl" VIEWASTEXT></OBJECT>
(
2008-01-27 11:24:07 +09:00 版)
2008-01-27 11:32:32 +09:00 版)
On Thu, 20 Nov 2008, Michael A. Puls II wrote: > > The spec currently says that Opera, Firefox and Safari can use the > classid attribute to load the plugin if they want. This might be done by > mapping a classid to a plugin handler. They just need to fall back if > that fails, instead of then trying type and data. > > The danger of mapping classid for non-activex browsers is that sometimes > an <object> that uses classid="" might be meant for an activeX plugin > that uses a different API than the NPAPI version of the plugin. This > where vendors would have to be careful before deciding what classids to > support. > > If that's not the handling intended by the spec and classid is meant to > be IE-only, the spec should be clarified. classid isn't a valid > attribute, so maybe that doesn't matter. What you describe is what I intended. There's a commented list of IDs that maybe they should support (based on what they do support) but I don't know whether to make it formal or not. So far I've opted to not make it formal. I think it might depend on a platform-by-platform basis.
clsid:6BF52A52-394A-11D3-B153-00C04F79FAA6 is for the WMP 7+ api. It uses a different API than the 6.4 API that's used by the NPAPI 6.4 wmp plugin (npdsplay.dll) that uses application/x-mplayer2.
So, mapping the classid in this case can break things, like volume, file loading, autostart etc and others things, including scripting.
However, clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95 is the 6.4 classid. It's still meant for the activeX 6.4 plugin, but it's pretty compatible with the NPAPI 6.4 wmp plugin.
Yeah... I think I'll leave this unspecified.
You can use the classid attribute of the OBJECT tag: <object classid="java:MyClassName.class"....> . This is the only classid that Netscape Gecko browsers support, since most classid attributes used with OBJECT tags in the web today refer to the UUIDs associated with IE's ActiveX controls. Netscape Gecko does not support ActiveX.
<object id="myCtl"
classid="http://www.mycode.Microsoft.com/mycode.dll#myClass">
</object>
HTML 埋め込み Windows Forms コントロール †
ActiveX コントロールと違って、classid に http を指定する。
<object id="MyControl" width=100 height=100 classid="http:MyControl.dll#MyControl.UserControl1">
<OBJECT id = "myControl" classid="http:myLibraryName.dll#myLibraryname.myControlName" VIEWASTEXT>
</OBJECT>