Low-Level Functions; Acquisition Functions - National Instruments Image Acquisition Software User Manual

Low-Level Functions

Acquisition Functions

© National Instruments Corporation
Use low-level functions when you require more direct hardware control.
Use acquisition functions to configure, start, and abort an image
acquisition, or examine a buffer during an acquisition.
imgMemLock
imgMemUnlock
imgSessionAbort
imgSessionAcquire
imgSessionConfigure
imgSessionCopyArea
imgSessionCopyBuffer
imgSessionExamineBuffer
imgSessionReleaseBuffer
Locks all session-associated image
buffers in memory in preparation for an
acquisition.
Unlocks all session-associated buffers.
Stops an asynchronous acquisition or
synchronous continuous acquisition
immediately.
Starts acquisition synchronously or
asynchronously to the frame buffers in
the associated session buffer list.
Specifies the buffer list to use with this
session.
Copies an area of a session's buffer to a
user-specified buffer.
Copies a session's image data to a user
buffer format.
Extracts a buffer from a live acquisition;
lets you lock a buffer out of a continuous
loop sequence for processing when you
are performing a ring (continuous)
acquisition.
Releases a buffer that was previously held
with
imgSessionExamineBuffer
2-5
Chapter 2 Software Overview
.
NI-IMAQ User Manual