Multimedia controls let us handle multimedia such as video and audio. The appearance of a multimedia control is much like the control panel of a CD player or video tape player:
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--------------------------------------------------------------Using these buttons, we can control various multimedia devices. Let's add a multimedia control like this to our Web page:
<HTML>
<HEAD>
<TITLE>OCX Control Page</TITLE>
</HEAD>
<BODY LANGUAGE = VBScript ONLOAD = "Page_Initialize">
<CENTER>
<H1>OCX Control Page</H1>
</CENTER>
.
.
.
<!- MMControl>
<PRE>
--> MMControl: <OBJECT CLASSID="clsid:C1A8AF25-1257-101B-8FB0-0020AF039CA3"
HEIGHT=50 WIDTH=400 ID=MMControl1></OBJECT>
</PRE>
.
.
.To see this control at work, let's have it work with a music CD in your CD-ROM drive. We set the multimedia control's DeviceType to "CDAudio" and tell it to open the CD in the CD-ROM drive. We have given the multimedia control the ID MMControl1, so we add a button with the caption Activate MM Control to initialize the multimedia control in Page_Initialize:
<!- MMControl>
<PRE>
MMControl: <OBJECT CLASSID="clsid:C1A8AF25-1257-101B-8FB0-0020AF039CA3"
HEIGHT=50 WIDTH=400 ID=MMControl1></OBJECT>
</PRE>
<CENTER>
--> <INPUT TYPE = BUTTON NAME = "MMButton" VALUE = "Activate MM Control">
</CENTER>
.
.
.
<SCRIPT LANGUAGE = VBScript>
Sub Page_Initialize
.
.
.
End Sub
Sub MMButton_OnClick
--> MMControl1.DeviceType = "CDAudio"
--> MMControl1.Command = "Open"
End Sub
</SCRIPT>
</BODY>
</HTML>And that's it—when the user clicks the Activate MM Control button, the multimedia control's panel becomes active, and the user can use the buttons to play music from the CD-ROM drive. The multimedia control appears at the bottom of the Web page in Figure 6.2. We'll learn more about this powerful control soon; in the meantime, let's turn to spin buttons.