User`s guide

14 Using the VideoDevice System Object
14-10
Using Properties on a VideoDevice System Object
You can specify properties at the time of object creation, or they can be specified and
changed after the object is created.
Properties that can be used with the VideoDevice System object include:
Property Description
Device Device from which to acquire images.
Specify the image acquisition device to use to acquire a
frame. It consists of the device name, adaptor, and device
ID. The default device is the first device returned by
imaqhwinfo.
obj.Device
shows the list of available devices for VideoDevice System
object, obj.
VideoFormat Video format to be used by the image acquisition device.
Specify the video format to use while acquiring the
frame. The default value of VideoFormat is the default
format returned by imaqhwinfo for the selected device.
To specify a Video Format using a device file, set the
VideoFormat property to 'From device file'
This option exists only if your device supports device
configuration files.
obj.VideoFormat
shows the list of available video formats.
DeviceFile Name of file specifying video format. This property is
only visible when VideoFormat is set to 'From device
file'.
DeviceProperties Object containing properties specific to the image
acquisition device.
obj.DeviceProperties.<property_name> =
<property_value>