Class

WIN32OLE

WIN32OLE objects represent OLE Automation object in Ruby.

By using WIN32OLE, you can access OLE server like VBScript.

Here is sample script.

require 'win32ole'

excel = WIN32OLE.new('Excel.Application')
excel.visible = true
workbook = excel.Workbooks.Add();
worksheet = workbook.Worksheets(1);
worksheet.Range("A1:D1").value = ["North","South","East","West"];
worksheet.Range("A2:B2").value = [5.2, 10];
worksheet.Range("C2").value = 8;
worksheet.Range("D2").value = 20;

range = worksheet.Range("A1:D2");
range.select
chart = workbook.Charts.Add;

workbook.saved = true;

excel.ActiveWorkbook.Close(0);
excel.Quit();

Unfortunately, Win32OLE doesn’t support the argument passed by reference directly. Instead, Win32OLE provides WIN32OLE::ARGV or WIN32OLE_VARIANT object. If you want to get the result value of argument passed by reference, you can use WIN32OLE::ARGV or WIN32OLE_VARIANT.

oleobj.method(arg1, arg2, refargv3)
puts WIN32OLE::ARGV[2]   # the value of refargv3 after called oleobj.method

or

refargv3 = WIN32OLE_VARIANT.new(XXX,
            WIN32OLE::VARIANT::VT_BYREF|WIN32OLE::VARIANT::VT_XXX)
oleobj.method(arg1, arg2, refargv3)
p refargv3.value # the value of refargv3 after called oleobj.method.
Constants

Version string of WIN32OLE.

After invoking OLE methods with reference arguments, you can access the value of arguments by using ARGV.

If the method of OLE(COM) server written by C#.NET is following:

void calcsum(int a, int b, out int c) {
    c = a + b;
}

then, the Ruby OLE(COM) client script to retrieve the value of argument c after invoking calcsum method is following:

a = 10
b = 20
c = 0
comserver.calcsum(a, b, c)
p c # => 0
p WIN32OLE::ARGV # => [10, 20, 30]

You can use WIN32OLE_VARIANT object to retrieve the value of reference arguments instead of referring WIN32OLE::ARGV.

ANSI code page. See WIN32OLE.codepage and WIN32OLE.codepage=.

current thread ANSI code page. See WIN32OLE.codepage and WIN32OLE.codepage=.

symbol code page. See WIN32OLE.codepage and WIN32OLE.codepage=.

UTF-7 code page. See WIN32OLE.codepage and WIN32OLE.codepage=.

UTF-8 code page. See WIN32OLE.codepage and WIN32OLE.codepage=.

default locale for the operating system. See WIN32OLE.locale and WIN32OLE.locale=.

default locale for the user or process. See WIN32OLE.locale and WIN32OLE.locale=.

Class Methods

Returns current codepage.

WIN32OLE.codepage # => WIN32OLE::CP_ACP

Sets current codepage. The WIN32OLE.codepage is initialized according to Encoding.default_internal. If Encoding.default_internal is nil then WIN32OLE.codepage is initialized according to Encoding.default_external.

WIN32OLE.codepage = WIN32OLE::CP_UTF8
WIN32OLE.codepage = 65001

Returns running OLE Automation object or WIN32OLE object from moniker. 1st argument should be OLE program id or class id or moniker.

WIN32OLE.connect('Excel.Application') # => WIN32OLE object which represents running Excel.

Defines the constants of OLE Automation server as mod’s constants. The first argument is WIN32OLE object or type library name. If 2nd argument is omitted, the default is WIN32OLE. The first letter of Ruby’s constant variable name is upper case, so constant variable name of WIN32OLE object is capitalized. For example, the ‘xlTop’ constant of Excel is changed to ‘XlTop’ in WIN32OLE. If the first letter of constant variable is not [A-Z], then the constant is defined as CONSTANTS hash element.

module EXCEL_CONST
end
excel = WIN32OLE.new('Excel.Application')
WIN32OLE.const_load(excel, EXCEL_CONST)
puts EXCEL_CONST::XlTop # => -4160
puts EXCEL_CONST::CONSTANTS['_xlDialogChartSourceData'] # => 541

WIN32OLE.const_load(excel)
puts WIN32OLE::XlTop # => -4160

module MSO
end
WIN32OLE.const_load('Microsoft Office 9.0 Object Library', MSO)
puts MSO::MsoLineSingle # => 1

Creates GUID.

WIN32OLE.create_guid # => {1CB530F1-F6B1-404D-BCE6-1959BF91F4A8}

Returns current locale id (lcid). The default locale is WIN32OLE::LOCALE_SYSTEM_DEFAULT.

lcid = WIN32OLE.locale

Sets current locale id (lcid).

WIN32OLE.locale = 1033 # set locale English(U.S)
obj = WIN32OLE_VARIANT.new("$100,000", WIN32OLE::VARIANT::VT_CY)

Returns a new WIN32OLE object(OLE Automation object). The first argument server specifies OLE Automation server. The first argument should be CLSID or PROGID. If second argument host specified, then returns OLE Automation object on host. If :license keyword argument is provided, IClassFactory2::CreateInstanceLic is used to create instance of licensed server.

WIN32OLE.new('Excel.Application') # => Excel OLE Automation WIN32OLE object.
WIN32OLE.new('{00024500-0000-0000-C000-000000000046}') # => Excel OLE Automation WIN32OLE object.

Invokes Release method of Dispatch interface of WIN32OLE object. You should not use this method because this method exists only for debugging WIN32OLE. The return value is reference counter of OLE object.

Returns reference counter of Dispatch interface of WIN32OLE object. You should not use this method because this method exists only for debugging WIN32OLE.

Displays helpfile. The 1st argument specifies WIN32OLE_TYPE object or WIN32OLE_METHOD object or helpfile.

excel = WIN32OLE.new('Excel.Application')
typeobj = excel.ole_type
WIN32OLE.ole_show_help(typeobj)
Instance Methods

Returns the value of Collection specified by a1, a2,.…

dict = WIN32OLE.new('Scripting.Dictionary')
dict.add('ruby', 'Ruby')
puts dict['ruby'] # => 'Ruby' (same as `puts dict.item('ruby')')

Remark: You can not use this method to get the property.

excel = WIN32OLE.new('Excel.Application')
# puts excel['Visible']  This is error !!!
puts excel.Visible # You should to use this style to get the property.

Sets the value to WIN32OLE object specified by a1, a2, …

dict = WIN32OLE.new('Scripting.Dictionary')
dict.add('ruby', 'RUBY')
dict['ruby'] = 'Ruby'
puts dict['ruby'] # => 'Ruby'

Remark: You can not use this method to set the property value.

excel = WIN32OLE.new('Excel.Application')
# excel['Visible'] = true # This is error !!!
excel.Visible = true # You should to use this style to set the property.

Runs the early binding method to get property. The 1st argument specifies dispatch ID, the 2nd argument specifies the array of arguments, the 3rd argument specifies the array of the type of arguments.

excel = WIN32OLE.new('Excel.Application')
puts excel._getproperty(558, [], []) # same effect as puts excel.visible

Runs the early binding method. The 1st argument specifies dispatch ID, the 2nd argument specifies the array of arguments, the 3rd argument specifies the array of the type of arguments.

excel = WIN32OLE.new('Excel.Application')
excel._invoke(302, [], []) #  same effect as excel.Quit

Runs the early binding method to set property. The 1st argument specifies dispatch ID, the 2nd argument specifies the array of arguments, the 3rd argument specifies the array of the type of arguments.

excel = WIN32OLE.new('Excel.Application')
excel._setproperty(558, [true], [WIN32OLE::VARIANT::VT_BOOL]) # same effect as excel.visible = true

Iterates over each item of OLE collection which has IEnumVARIANT interface.

excel = WIN32OLE.new('Excel.Application')
book = excel.workbooks.add
sheets = book.worksheets(1)
cells = sheets.cells("A1:A5")
cells.each do |cell|
  cell.value = 10
end

Runs OLE method. The first argument specifies the method name of OLE Automation object. The others specify argument of the method. If you can not execute method directly, then use this method instead.

excel = WIN32OLE.new('Excel.Application')
excel.invoke('Quit')  # => same as excel.Quit

Calls WIN32OLE#invoke method.

By overriding Object#methods, WIN32OLE might work well with did_you_mean gem. This is experimental.

require 'win32ole'
dict = WIN32OLE.new('Scripting.Dictionary')
dict.Ade('a', 1)
#=> Did you mean?  Add

Initialize WIN32OLE object(ActiveX Control) by calling IPersistMemory::InitNew.

Before calling OLE method, some kind of the ActiveX controls created with MFC should be initialized by calling IPersistXXX::InitNew.

If and only if you received the exception “HRESULT error code: 0x8000ffff catastrophic failure”, try this method before invoking any ole_method.

obj = WIN32OLE.new("ProgID_or_GUID_of_ActiveX_Control")
obj.ole_activex_initialize
obj.method(...)

invokes Release method of Dispatch interface of WIN32OLE object. Usually, you do not need to call this method because Release method called automatically when WIN32OLE object garbaged.

Returns the array of WIN32OLE_METHOD object . The element of the array is property (settable) of WIN32OLE object.

excel = WIN32OLE.new('Excel.Application')
properties = excel.ole_func_methods

Returns the array of WIN32OLE_METHOD object . The element of the array is property (gettable) of WIN32OLE object.

excel = WIN32OLE.new('Excel.Application')
properties = excel.ole_get_methods

Returns WIN32OLE_METHOD object corresponding with method specified by 1st argument.

excel = WIN32OLE.new('Excel.Application')
method = excel.ole_method_help('Quit')

Returns the array of WIN32OLE_METHOD object. The element is OLE method of WIN32OLE object.

excel = WIN32OLE.new('Excel.Application')
methods = excel.ole_methods
No documentation available
An alias for ole_type

Returns the array of WIN32OLE_METHOD object . The element of the array is property (settable) of WIN32OLE object.

excel = WIN32OLE.new('Excel.Application')
properties = excel.ole_put_methods

Returns WIN32OLE object for a specific dispatch or dual interface specified by iid.

ie = WIN32OLE.new('InternetExplorer.Application')
ie_web_app = ie.ole_query_interface('{0002DF05-0000-0000-C000-000000000046}') # => WIN32OLE object for dispinterface IWebBrowserApp

Returns true when OLE object has OLE method, otherwise returns false.

ie = WIN32OLE.new('InternetExplorer.Application')
ie.ole_respond_to?("gohome") => true

Returns WIN32OLE_TYPE object.

excel = WIN32OLE.new('Excel.Application')
tobj = excel.ole_type

Returns the WIN32OLE_TYPELIB object. The object represents the type library which contains the WIN32OLE object.

excel = WIN32OLE.new('Excel.Application')
tlib = excel.ole_typelib
puts tlib.name  # -> 'Microsoft Excel 9.0 Object Library'

Sets property of OLE object. When you want to set property with argument, you can use this method.

excel = WIN32OLE.new('Excel.Application')
excel.Visible = true
book = excel.workbooks.add
sheet = book.worksheets(1)
sheet.setproperty('Cells', 1, 2, 10) # => The B1 cell value is 10.