Data Translation DT3152-LS, User Manual

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Programming Flowcharts
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Set the Standard Controls for the Input Source (cont).
Continued from previous page.
Set the top of the frame with
OlFgSetInputControlValue.
For area-scan mode only, use the key
OLC_FG_CTL_FRAME_TOP to set the first line of
video, relative to the active video area, to digitize. The
default is 0. This is not used for line-scan mode.
Set the left of the frame with
OlFgSetInputControlValue.
For area-scan mode only, use the key
OLC_FG_CTL_FRAME_LEFT to set the first pixel of
video, relative to the active video area, to digitize. The
default is 0. This is not used for line-scan mode.
Set the height of the frame with
OlFgSetInputControlValue.
Use the key OLC_FG_CTL_FRAME_HEIGHT to set
the number of lines per field of video (or noninterlaced
frame) to digitize. In area-scan mode, the default is
480 for 60 Hz and 576 for 50 Hz. In line-scan mode,
the default is 1.
Use the key OLC_FG_CTL_FRAME_WIDTH to set the
number of pixels per line of video to digitize. For
area-scan mode, the default is 640 for 60 Hz and 768
for 50 Hz. For line-scan mode, the default value is 4.
Set the width of the frame with
OlFgSetInputControlValue.
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