Racal Instruments 3156B, Руководство пользователя

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3156B User Manual
Racal Instrument © 2005 Programming Reference 5-139
ri3156b_set(query)_video_offset_range
Description
This programs the video stroke offset range. Use this function to simultaneously set initial and final position of
the video stroke pattern/character on the video monitor.
Channel Dependency: Independent
C Syntax
ViStatus ri3156b_set_video_offset_range (ViSession instrHandle, ViReal64 videoStrokeOffsetStart, ViReal64
videoStrokeOffsetStop)
ViStatus ri3156b_query_video_offset_range (ViSession instrHandle, ViReal64 * videoStrokeOffsetStart,
ViReal64 * videoStrokeOffsetStop)
Parameters
Name
Variable
Type
Description
instrHandle ViSession The Instrument Handle is used to identify the unique
session or communication channel between the driver
and the instrument. If more than one instrument of the
model type is used, this will be used to differentiate
between them. Note that the initialize function may be
used to associate multiple instrument handles with a
single instrument.
videoStrokeOffsetStart
ViReal64
Selects the video stroke offset start level.
Valid Range:
-4.995 to +4.995
(V into 50
Ω
)
Default Value: 0
videoStrokeOffsetStop
ViReal64
Selects the video stroke offset stop level.
Valid Range:
-4.995 to +4.995
(V into 50
Ω
)
Default Value: 0
Return Values
Displays the return status of the function call. If the function was successful, it will return a status of
VI_SUCCESS, otherwise it will return an error code. Passing the error code into the function
"ri3156B_error_message()" will return a string describing the error.