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Class: WIN32OLE_RECORD

Relationships & Source Files
Inherits: Object
Defined in: ext/win32ole/win32ole_record.c,
ext/win32ole/win32ole_record.c

Overview

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

Class Method Summary

Instance Method Summary

Constructor Details

.new(typename, obj) ⇒ WIN32OLE_RECORD

Returns WIN32OLE_RECORD object. The first argument is struct name (String or Symbol). The second parameter obj should be ::WIN32OLE object or ::WIN32OLE_TYPELIB object. 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
End Class

then, you can create WIN32OLE_RECORD object is as following:

require 'win32ole'
obj = WIN32OLE.new('ComServer.ComClass')
book1 = WIN32OLE_RECORD.new('Book', obj) # => WIN32OLE_RECORD object
tlib = obj.ole_typelib
book2 = WIN32OLE_RECORD.new('Book', tlib) # => WIN32OLE_RECORD object

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name)

Returns value specified by the member name of VT_RECORD OLE variable. Or sets value specified by the member name of VT_RECORD OLE variable. If the member name is not correct, KeyError exception is raised.

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
End Class

Then getting/setting value from Ruby is as the following:

obj = WIN32OLE.new('ComServer.ComClass')
book = WIN32OLE_RECORD.new('Book', obj)
book.title # => nil ( book.method_missing(:title) is invoked. )
book.title = "Ruby" # ( book.method_missing(:title=, "Ruby") is invoked. )

Instance Method Details

#inspect ⇒ String

Returns the OLE struct name and member name and the value of member

If COM server in VB.NET ComServer project is the following:

Imports System.Runtime.InteropServices
Public Class ComClass
    <MarshalAs(UnmanagedType.BStr)> _
    Public title As String
    Public cost As Integer
End Class

then

srver = WIN32OLE.new('ComServer.ComClass')
obj = WIN32OLE_RECORD.new('Book', server)
obj.inspect # => <WIN32OLE_RECORD(ComClass) {"title" => nil, "cost" => nil}>

#ole_instance_variable_get(name)

Returns value specified by the member name of VT_RECORD OLE object. If the member name is not correct, KeyError exception is raised. If you can't access member variable of VT_RECORD OLE object directly, use this method.

If COM server in VB.NET ComServer project is the following:

Imports System.Runtime.InteropServices
Public Class ComClass
    Public Structure ComObject
        Public object_id As Ineger
    End Structure
End Class

and Ruby Object class has title attribute:

then accessing object_id of ComObject from Ruby is as the following:

srver = WIN32OLE.new('ComServer.ComClass')
obj = WIN32OLE_RECORD.new('ComObject', server)
# obj.object_id returns Ruby Object#object_id
obj.ole_instance_variable_get(:object_id) # => nil

#ole_instance_variable_set(name, val)

Sets value specified by the member name of VT_RECORD OLE object. If the member name is not correct, KeyError exception is raised. If you can't set value of member of VT_RECORD OLE object directly, use this method.

If COM server in VB.NET ComServer project is the following:

Imports System.Runtime.InteropServices
Public Class ComClass
    <MarshalAs(UnmanagedType.BStr)> _
    Public title As String
    Public cost As Integer
End Class

then setting value of the `title' member is as following:

srver = WIN32OLE.new('ComServer.ComClass')
obj = WIN32OLE_RECORD.new('Book', server)
obj.ole_instance_variable_set(:title, "The Ruby Book")

#to_h(#=> Ruby Hash object.) ⇒ ?

Returns Ruby Hash object which represents VT_RECORD variable. The keys of Hash object are member names of VT_RECORD OLE variable and the values of Hash object are values of VT_RECORD OLE variable.

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, the result of to_h is the following:

require 'win32ole'
obj = WIN32OLE.new('ComServer.ComClass')
book = obj.getBook
book.to_h # => {"title"=>"The Ruby Book", "cost"=>20}

#typename(#=> String object)

Returns the type name of VT_RECORD OLE variable.

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, the result of typename is the following:

require 'win32ole'
obj = WIN32OLE.new('ComServer.ComClass')
book = obj.getBook
book.typename # => "Book"