Extensions (package schema for Windows 8, child of Package)
Defines one or more extensibility points for the package.
Element hierarchy
- <Package>
- <Extensions>
Syntax
<Extensions>
<!-- Child elements -->
Extension{1,10000}
</Extensions>
Key
{}
specific range of occurrences
Attributes and Elements
Attributes
None.
Child Elements
Child Element | Description |
---|---|
Extension (in type: CT_PackageExtensions) | Declares an extensibility point for the package. |
Parent Elements
Parent Element | Description |
---|---|
Package | Defines the root element of an app package manifest. The manifest describes the structure and capabilities of the software to the system. |
Related elements
The following elements have the same name as this one, but different content or attributes:
Remarks
Extensibility points are a mechanism by which an app can add functionality in a manner defined by the operating system. An example of a package extensibility point is the ability to specify a dynamic-link library or executable that contains activatable classes that your code uses.
Examples
The following example is taken from the package manifest of one of the SDK samples.
<Package>
<Extensions>
<Extension Category="windows.activatableClass.proxyStub">
<ProxyStub ClassId="332fd2f1-1c69-4c91-949e-4bb67a85bdc5">
<Path>Microsoft.Samples.DllServerAuthoring.Proxies.dll</Path>
<Interface Name="IToaster" InterfaceId="6a112353-4f87-4460-a908-2944e92686f3" />
<Interface Name="IToast" InterfaceId="699b1394-3ceb-4a14-ae23-efec518b088b" />
<Interface Name="IAppliance" InterfaceId="332fd2f1-1c69-4c91-949e-4bb67a85bdc5" />
</ProxyStub>
</Extension>
<Extension Category="windows.activatableClass.inProcessServer">
<InProcessServer>
<Path>Microsoft.Samples.DllServerAuthoring.dll</Path>
<ActivatableClass ActivatableClassId="Microsoft.Samples.DllServerAuthoring.Toaster" ThreadingModel="both" />
</InProcessServer>
</Extension>
</Extensions>
</Package>
See also
Concepts App contracts and extensions
Requirements
Value | |
---|---|
Namespace | http://schemas.microsoft.com/appx/2010/manifest |