DEVA DEVA028, Руководство пользователя

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3.6.3 copy_capture_buffer
result copy_capture_buffer(capture, buffer, info)
Parameter Type Description
capture U32 The handle of the capture stream.
buffer HDL Handle to an application defined memory area
where the image data will be transferred. The
format of the data is defined in the call to
setup_capture that originally setup the capture
stream.
info HDL
Handle to a CAPTURE_FRAME_INFO
structure.
result U32 0 = No image capture data available
1 = Image capture data transferred
Transfers image capture data from the image capture buffer to the application defined
memory area.
The application passes a handle to a memory area of sufficient size to receive the image
capture data. The format of the data is previously defined in the call to
setup_capture
that setup the capture stream and this functions also returns the required size of the
memory area.
Information about the captured image is stored in an application defined structure passed
to the
info parameter.
If the function returns 0, then there is no image capture data available in the image
capture buffer.
3.6.4 flush_capture_buffer
result flush_capture_buffer (capture)
Parameter Type Description
capture U32 The handle of the capture stream to be
flushed.
result U32 0 = Operation failed
1 = Operation completed
Flushes the specified capture stream.
This function flushes the image capture buffer of any image capture data that have not
been retrieved by a call to
copy_capture_buffer .