DeviceStreams

DeviceStreams[device] gives a list of all open streams associated with a device.

DeviceStreams[device, patt] gives a list of streams whose names match the string pattern patt.

DeviceStreams[device, {patt1, patt2, ...}] gives a list of streams whose names match any of the patti.

Examples

List device streams:

DeviceStreams[device]

Please visit the official Wolfram Language Reference for more details.