User`s guide

5 Connecting to Hardware
5-10
This syntax uses the default video format listed in the DefaultFormat field of the data
returned by imaqhwinfo. You can optionally specify the video format. See “Specifying
the Video Format” on page 5-11 for more information.
Viewing a Summary of a Video Input Object
To view a summary of the characteristics of the video input object you created, enter the
variable name you assigned to the object at the command prompt. For example, this is
the summary for the object vid.
vid
The items in this list correspond to the numbered elements in the object summary:
1
The title of the summary includes the name of the image acquisition device this
object represents. In the example, this is a Matrox Orion frame grabber.
2
The Acquisition Source section lists the name of all the video source objects
associated with this video input object. For many objects, this list might only contain
one video source object. In the example, the Matrox device supports eight physical
input channels and, with the default video format, the toolbox creates a video source
object for each connection. For an example showing the video source objects created
with another video format, see “Specifying the Video Format” on page 5-11.
3
The Acquisition Parameters section lists the values of key video input object
properties. These properties control various aspects of the acquisition, such as the
number of frames to acquire and the location where acquired frames are stored. For
information about these properties, see “Acquiring Image Data” on page 6-2.