DEVA DEVA028, Руководство пользователя

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3.4.6 get_camera_id
result get_camera_id (descr)
Parameter Type Description
descr STR Handle to descriptive text string or ‘name’ of
the camera for which the
id is required.
result U32 A non-zero value is the id of the camera.
Returns the id of a camera with a descriptive text string that matches the application
supplied descr string.
As an alternative to the enumerate_cameras function, this function allows an application
to get the id of a camera using its descriptive text string alone. The id is used to identify
the camera in calls to functions that perform operations on that camera.
This function is useful if cameras are to be identified by a ‘name’ that has previously been
programmed into the camera using the
set_camera_description function.
3.4.7 get_camera_description
result get_camera_description (camera, descr, descr_len)
Parameter Type Description
camera U32 The id of the camera for which the descriptive
text string is required.
descr STR Handle to application supplied string where the
descriptive text will be read.
descr_len U32 The maximum length of the application
supplied string.
result U32 0 = Operation failed
1 = Operation completed
Reads the descriptive text string read from a camera with the specified id into an
application supplied descr string.
This function may be used to read the descriptive text string that has previously been
programmed into the camera using the
set_camera_description function.
The camera description is also included in the CAMERA_SETTINGS structure referenced
by the get_camera_description and set_camera_description functions.