Sends a discovery packet to the IPs specified in the subnetRange.
Subnet searches are defined by the first three subnet octets, followed by a range, such as 192.168.2.*
This method accepts IP addresses of the form, assuming a subnet of 192.168.2:

• 192.168.2.254 (will send a discovery packet to 192.168.2.254)
• 192.168.2.* (will send a discovery packet for the range 192.168.2.1 - 192.168.2.254)
• 192.168.2.8-* (will send a discovery packet for the range 192.168.2.8 - 192.168.2.254)
• 192.168.2.37-42 (will send a discovery packet for the range 192.168.2.37 - 192.168.2.42)

public static DiscoveredPrinter[] SubnetSearch(
	string subnetRange
)

Public Shared Function SubnetSearch ( _
	subnetRange As String _
) As DiscoveredPrinter()