Книга: Microsoft Windows Embedded CE 6.0 Exam Preparation Kit

Catalog Component Dependencies

Catalog Component Dependencies

The catalog in Platform Builder for Windows Embedded CE 6.0 R2 supports component dependencies. To specify that a component is dependent on another component, you must set the SYSGEN or Additional Variables field for the component of the catalog item, and then include this value in the form of an additional environment variable in the dependent component. For example, if you have catalog components in your BSP for both a display driver and a backlight driver for the display, you can set the Additional Variables field for the display driver to BSP_DISPLAY and the Additional Variables field for the backlight driver to BSP_BACKLIGHT. If you now want the display driver to be dependent on the backlight driver, you can edit the catalog entry for BSP_DISPLAY in the Catalog Editor and add BSP_BACKLIGHT to the additional environment variables. Then, whenever you include the display driver in an OS design, Platform Builder automatically includes the backlight driver as well. The Catalog Items View will show the check box of the backlight driver with a green square to indicate that this component is included as a dependency of the display driver.

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