[1.0/1.1] Registry-related codes in C#

[longwar]

hi all,
can someone help me to explain the following codes. i got no idea what it wanna do.

int hKey = 0;
byte[] uidByte = new byte[] {};
hKey = Registry.OpenKey(Registry.RootKey.HKEY_LOCAL_MACHINE, "PDALOCK");
uidByte = Registry.QueryValueBinary(hKey, "UID");
Registry.CloseKey(ref hKey);

longwar