Generic Functions; High-Level Functions; Snap Functions; Grab Functions - National Instruments Image Acquisition Software User Manual

Chapter 2 Software Overview

Generic Functions

High-Level Functions

Snap Functions

Grab Functions

NI-IMAQ User Manual
Use generic functions in both high-level and low-level applications.
imgInterfaceOpen
imgSessionOpen
imgClose
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.
Snap functions program the session to capture all or a portion of a single
frame or field to the user buffer.
imgSnap
imgSnapArea
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.
imgGrabSetup
imgGrab
Opens by name an interface as specified
in the IMAQ Configuration Utility.
Opens a session of an unknown type and
returns a session ID.
Closes a session or interface and unlocks
and releases all buffers associated with
the data type.
Performs a single frame and field
acquisition.
Performs an area-specific frame or field
acquisition.
Configures and optionally starts a
continuous acquisition.
Performs a transfer from a continuous
acquisition session. Call this function
only after calling
2-2
.
imgGrabSetup
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