Retrieves whether the specified component is available.
Syntax
bInstalled = clientCaps.isComponentInstalled(sID, sIDType [, sMinVersion])
Parameters
| sID |
Required.
A String that specifies a MIME type, ProgID, class identifier (CLSID), or component ID. |
| sIDType |
Required.
A case-insensitive String that specifies the type of the identifier in sID. Must be one of the following values: mimetype | A MIME type, such as application/cdf. | progid | A ProgID string, such as WMPlayer.OCX. | clsid | A CLSID, such as {6BF52A52-394A-11D3-B153-00C04F79FAA6} (Microsoft Windows Media Player). | componentid | The Active Setup component ID. See Detectable Components in Internet Explorer. |
|
| sMinVersion |
Optional.
A String that specifies the minimum required version of the component. (Version numbers can contain only numerals, separated by commas.) |
Return Value
Returns one of the following values:
true | The component is installed, and its version number is greater than or equal to the specified sMinVersion. |
false | The component is not installed, or its version number is less than the specified sMinVersion. |
Remarks
Only Microsoft Internet Explorer components are detected by this method. If a component identifier of a non-Microsoft component is specified, the method returns false.
Example
This example uses the isComponentInstalled method to determine whether the Microsoft virtual machine is installed.
<HTML xmlns:IE>
<HEAD>
<STYLE>
@media all {
IE\:clientCaps {behavior:url(#default#clientcaps)}
}
</STYLE>
</HEAD>
<BODY>
<IE:clientCaps ID="oClientCaps" />
<SCRIPT>
bMSvmAvailable = oClientCaps.isComponentInstalled("{08B0E5C0-4FCB-11CF-AAA5-00401C608500}",
"ComponentID");
</SCRIPT>
:
</BODY>
This feature requires Microsoft® Internet Explorer 5 or later. Click the following icon to install the latest version. Then reload this page to view the sample.
Standards Information
There is no public standard that applies to this method.
Applies To
See Also
About Client Capabilities, Using DHTML Behaviors, compareVersions, getComponentVersion