| 摘要 |
Embodiments of the invention comprise techniques to detect support for a given input device by a screen element of a graphical user interface (GUI). In one embodiment of the invention, a runtime version of a screen element's program code is examined to detect an ability to process a device's events. In another embodiment of the invention, a determination is made at runtime whether a screen element delegated processing of a given input device's events to other program code. In yet another embodiment of the invention, the runtime version of a screen element's program code is examined to detect a declaration of program code that is indicative of a screen element's support or non-support of a given input device. In yet another embodiment of the invention, one or more of the previously-identified embodiments can be combined.
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