| 摘要 |
Control patterns (603) are used to describe functionality that may be exposed by two or more types of elements or controls. Functionality that is common among two or more types of elements is described by the same control pattern. Certain predefined methods, structures, properties, and/or events may be associated with a particular control pattern. Elements (601) that support the control pattern, when queried (605), return an interface (611) that describes those methods, structures, properties, and/or events. Control patterns are mutually exclusive in the functionality they represent, so they may be combined in arbitrary ways to expose the complete set of functionality offered by a particular control.
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