isComponentInstalled Method
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 Windows 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>Code example: http://samples.msdn.microsoft.com/workshop/samples/author/behaviors/clientcaps/isMSvmThere.htm
Standards Information
There is no public standard that applies to this method.
Applies To
clientCaps
See Also
