By associating your file type or item with certain of these Kinds, you automatically inherit that Kind's Content view layout patterns and property lists. You can use a registry entry to associate your file type or item with a predefined Kind, which is a property that you can think of as a content category. You can use an existing set of properties and layout pattern, or you can create your own combination. When registering a new file type or protocol handler, you can take advantage of the Content view by using either of two different approaches. The items in a data store can be indexed by the Windows Search system using a protocol handler. A Shell data source extends the Shell namespace and exposes items in a data store. Some Shell data sources use Content view by default, but users can select the Content view by clicking the View Control button in Windows Explorer. The following screen shot illustrates the Content view of search results containing music, pictures, and documents. In Windows 7 and later, the Content view uses a resizing logic that drops properties when the window size decreases, to ensure that the most critical properties still have room to be clearly readable.
The Shell retrieves the registry keys by using the item's association array.
Using a set of registry keys, items can define a property list and a layout that the Shell uses for Content view.
This topic describes a new view in Windows Explorer, called the Content view, that displays the most relevant content for each item.
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