National Instruments NI-IMAQ Manual De Usuario
Chapter 2
Software Overview
2-2
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High-Level Functions
Use high-level functions to quickly and easily capture images. If you need
more advanced functionality, you can mix high-level functions with
low-level functions.
more advanced functionality, you can mix high-level functions with
low-level functions.
Snap Functions
Snap functions capture all or a portion of a single frame or field to the user
buffer.
buffer.
imaq1394SnapImage
Performs a single frame
acquisition in an image buffer,
which is allocated using IMAQ
Vision memory management.
acquisition in an image buffer,
which is allocated using IMAQ
Vision memory management.
imaq1394Snap
Performs a single frame
acquisition in a memory buffer,
which is allocated without using
IMAQ Vision memory
management.
acquisition in a memory buffer,
which is allocated without using
IMAQ Vision memory
management.
Grab Functions
Grab functions start a continuous image acquisition to a user buffer. Any
frame or field can be copied from the grab buffer to another user buffer.
frame or field can be copied from the grab buffer to another user buffer.
imaq1394SetupGrab
Configures and starts a continuous
acquisition.
acquisition.
imaq1394GrabImage
Acquires the most current frame
into the specified IMAQ Vision
image buffer. Call this function
only after calling
into the specified IMAQ Vision
image buffer. Call this function
only after calling
imaq1394SetupGrab
.
imaq1394Grab
Acquires the most current frame
into a previously allocated buffer.
Call this function only after calling
into a previously allocated buffer.
Call this function only after calling
imaq1394SetupGrab
.