get_identifier

Retrieves an opaque identifier for this monitor.

The identifier can usually be relied upon to uniquely identify this monitor (even if you have multiple identical monitors of the same make and model), assuming the monitor's hardware is set up properly.

This identifier should also be stable across application and machine restarts.

If the monitor's hardware is not set up properly, the identifier may not be unique. Unfortunately, this library cannot determine when this is the case.

Parameters:

this	a Monitor.

Returns:

A string owned by this.