WIN32OLE_PARAM
objects represent param information of the OLE method.
WIN32OLE_RECORD
objects represents VT_RECORD OLE variant. Win32OLE returns WIN32OLE_RECORD
object if the result value of invoking OLE methods.
If COM server in VB.NET ComServer project is the following:
Imports System.Runtime.InteropServices Public Class ComClass Public Structure Book <MarshalAs(UnmanagedType.BStr)> _ Public title As String Public cost As Integer End Structure Public Function getBook() As Book Dim book As New Book book.title = "The Ruby Book" book.cost = 20 Return book End Function End Class
then, you can retrieve getBook return value from the following Ruby script:
require 'win32ole' obj = WIN32OLE.new('ComServer.ComClass') book = obj.getBook book.class # => WIN32OLE_RECORD book.title # => "The Ruby Book" book.cost # => 20
WIN32OLE_TYPE
objects represent OLE type libarary information.
WIN32OLE_TYPELIB
objects represent OLE tyblib information.
WIN32OLE_VARIABLE
objects represent OLE variable information.
WIN32OLE_VARIANT
objects represents OLE variant.
Win32OLE converts Ruby object into OLE variant automatically when invoking OLE methods. If OLE method requires the argument which is different from the variant by automatic conversion of Win32OLE, you can convert the specfied variant type by using WIN32OLE_VARIANT
class.
param = WIN32OLE_VARIANT.new(10, WIN32OLE::VARIANT::VT_R4) oleobj.method(param)
WIN32OLE_VARIANT
does not support VT_RECORD variant. Use WIN32OLE_RECORD
class instead of WIN32OLE_VARIANT
if the VT_RECORD variant is needed.
Enumerator::Chain
is a subclass of Enumerator
, which represents a chain of enumerables that works as a single enumerator.
This type of objects can be created by Enumerable#chain
and Enumerator#+
.
Fiddle::Pointer
is a class to handle C pointers
This exception is raised if the nesting of parsed data structures is too deep.
This class is used as a return value from ObjectSpace::reachable_objects_from
.
When ObjectSpace::reachable_objects_from
returns an object with references to an internal object, an instance of this class is returned.
You can use the type
method to check the type of the internal object.
This class is the access to openssl’s ENGINE cryptographic module implementation.
See also, www.openssl.org/docs/crypto/engine.html
Document-class: OpenSSL::HMAC
OpenSSL::HMAC
allows computing Hash-based Message Authentication Code (HMAC
). It is a type of message authentication code (MAC) involving a hash function in combination with a key. HMAC
can be used to verify the integrity of a message as well as the authenticity.
OpenSSL::HMAC
has a similar interface to OpenSSL::Digest
.
key = "key" data = "message-to-be-authenticated" mac = OpenSSL::HMAC.hexdigest("SHA256", key, data) #=> "cddb0db23f469c8bf072b21fd837149bd6ace9ab771cceef14c9e517cc93282e"
data1 = File.read("file1") data2 = File.read("file2") key = "key" digest = OpenSSL::Digest::SHA256.new hmac = OpenSSL::HMAC.new(key, digest) hmac << data1 hmac << data2 mac = hmac.digest
OpenSSL::HMAC
allows computing Hash-based Message Authentication Code (HMAC
). It is a type of message authentication code (MAC) involving a hash function in combination with a key. HMAC
can be used to verify the integrity of a message as well as the authenticity.
OpenSSL::HMAC
has a similar interface to OpenSSL::Digest
.
key = "key" data = "message-to-be-authenticated" mac = OpenSSL::HMAC.hexdigest("SHA256", key, data) #=> "cddb0db23f469c8bf072b21fd837149bd6ace9ab771cceef14c9e517cc93282e"
data1 = File.read("file1") data2 = File.read("file2") key = "key" digest = OpenSSL::Digest::SHA256.new hmac = OpenSSL::HMAC.new(key, digest) hmac << data1 hmac << data2 mac = hmac.digest
Subclass of Zlib::Error
. This error is raised when the zlib stream is currently in progress.
For example:
inflater = Zlib::Inflate.new inflater.inflate(compressed) do inflater.inflate(compressed) # Raises Zlib::InProgressError end
Zlib:Inflate is the class for decompressing compressed data. Unlike Zlib::Deflate
, an instance of this class is not able to duplicate (clone, dup) itself.
An ObjectSpace::WeakMap
object holds references to any objects, but those objects can get garbage collected.
This class is mostly used internally by WeakRef
, please use lib/weakref.rb
for the public interface.
exception to wait for reading by EAGAIN. see IO.select
.
exception to wait for writing by EAGAIN. see IO.select
.
exception to wait for reading by EINPROGRESS. see IO.select
.