/**
* <summary>
* Enumerates all functions of type Display available on the devices
* currently reachable by the library, and returns their unique hardware ID.
* <para>
* Each of these IDs can be provided as argument to the method
* <c>YDisplay.FindDisplay</c> to obtain an object that can control the
* corresponding device.
* </para>
* </summary>
* <returns>
* an array of strings, each string containing the unique hardwareId
* of a device function currently connected.
* </returns>
*/
public static new string[] GetSimilarFunctions()
{
List <string> res = new List <string>();
YDisplay it = YDisplay.FirstDisplay();
while (it != null)
{
res.Add(it.get_hardwareId());
it = it.nextDisplay();
}
return(res.ToArray());
}