DeviceReadList

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

DeviceReadList[device,n,param]

reads the parameter param.

DeviceReadList[device,n,{param₁,param₂,…}]

reads the list of parameters param_i.

Details

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

Open the demo device:

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

Repeatedly read a specified parameter:

Or multiple parameters:

Open the default camera attached to your system:

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

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