Windows Media Player PARAM Elements

PARAM Elements in an OBJECT Element

Windows Media Player uses the PARAM element to define specific startup conditions for the control. The PARAM element is embedded inside the OBJECT element.
For example, if you want to define whether the autoStart property is True, you would embed the PARAM element inside the OBJECT element.

<OBJECT ID="Player"
  CLASSID="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6">
    <PARAM name="autoStart" value="True">
</OBJECT>

You can have as many PARAM elements in an OBJECT element as you want. PARAM has two attributes, name and value. Both attributes must be set.
The supported PARAM attributes vary slightly among browsers and mime types. The following table shows the attributes supported by the Internet Explorer and Firefox browsers. The preferred mime type for the Firefox browser is application/x-ms-wmp, however, there are several other mime types that you can use to embed the Player control in a Web page hosted by the Firefox browser. The fourth column of the table shows the attributes that are supported when you use a mime type other than application/x-ms-wmp.

PARAM name	Type	Internet Explorer	Firefox with mime type application/x-ms-wmp	Firefox with any other mime type
autoStart	Boolean,	yes	yes	yes
balance	Long, -100 to 100, default 0.	yes	yes	yes
baseURL	String ,	yes	yes	yes
captioningID	String	yes	yes	yes
currentMarker	Long, default 0	yes	yes	yes
currentPosition	Double, default 0	yes	yes	yes
defaultFrame	String	yes	no	no
enableContextMenu	Boolean	yes	yes	yes
enabled	Boolean	yes	yes	yes
enableErrorDialogs	Boolean	yes	yes	no
fileName	String	no	yes	yes
fullScreen	Boolean	yes	no	no
invokeURLs	Boolean, default true	yes	no	no
mute	Boolean	yes	yes	yes
playCount	Long, 0 to ..n	yes	yes	no
rate	Double, default 1.0	yes	yes	yes
SAMIFileName	String	yes	yes	yes
SAMILang	String	yes	yes	yes
SAMIStyle	String	yes	yes	yes
SRC	String	no	yes	yes
stretchToFit	Boolean, default false	yes	yes	no
URL	String	yes	yes	yes
volume	Long, 0 to ..n	yes	yes	yes
windowlessVideo	Boolean, default false	yes	yes	yes

Note  The fileName and SRC PARAM elements are supported by the Firefox plug-in, but not by Internet Explorer. They both perform the same function as the URL PARAM element.
See the Object Model Reference for Scripting for more details about the values for each name attribute.

See Also

Using the Windows Media Player Control in a Web Page