reads from the specified device n times, returning a list of the results.


reads the parameter param.


reads the list of parameters parami.


  • DeviceReadList effectively performs n sequential reads on the device, as quickly as possible.
  • DeviceReadList[device,n] reads the default parameter from the device.
  • DeviceReadList is a blocking function; when called, it communicates with the device and does not return until it has the data it needs.
  • A device can be specified either by a DeviceObject or by a string representing a device class.


open allclose all

Basic Examples  (1)

Open the demo device:

Sequentially read the specified number of items from a demo device:

Repeatedly read a specified parameter:

Or multiple parameters:

Applications  (1)

Open the default camera attached to your system:

Set an appropriate frame rate and capture a sequence of four frames:

Introduced in 2014