subkey is String which contains name of subkey. wtime is last write time as FILETIME (64-bit
integer). (see Registry.wtime2time)
# File ext/dl/win32/lib/win32/registry.rb, line 547
def each_key
index = 0
while true
begin
subkey, wtime = API.EnumKey(@hkey, index)
rescue Error
break
end
yield subkey, wtime
index += 1
end
index
end
