| 摘要 |
A system and computer program for controlling screen focus for files and applications during presentations provides for protection of information in a computer-generated presentation setting and prevention of interruption of a presentation by unwanted computer activity. A list is built of applications and files for which screen access is permitted during the presentation. Upon an indication that the presentation is active, when an application or file is about to obtain screen focus, the list is checked to determine whether access is permitted for the file or application. If the application or file is should not have the focus, execution of an application or opening of a file is blocked, or screen focus is denied to windows generated in conjunction with application or file. The indication that the presentation is active may be the connection of a particular display type (e.g., a projector) or the use of a certain display port.
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