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Closes the write end of a StringIO. Will raise an IOError if the receiver is not writeable.

Returns true if the stream is not writable, false otherwise.

See IO#each_char.

Scans the string until the pattern is matched. Advances the scan pointer if advance_pointer_p, otherwise not. Returns the matched string if return_string_p is true, otherwise returns the number of bytes advanced. This method does affect the match register.

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

Defines the callback event. If argument is omitted, this method defines the callback of all events. If you want to modify reference argument in callback, return hash in callback. If you want to return value to OLE server as result of callback use ‘return’ or :return.

ie = WIN32OLE.new('InternetExplorer.Application')
ev = WIN32OLE_EVENT.new(ie)
ev.on_event("NavigateComplete") {|url| puts url}
ev.on_event() {|ev, *args| puts "#{ev} fired"}

ev.on_event("BeforeNavigate2") {|*args|
  ...
  # set true to BeforeNavigate reference argument `Cancel'.
  # Cancel is 7-th argument of BeforeNavigate,
  # so you can use 6 as key of hash instead of 'Cancel'.
  # The argument is counted from 0.
  # The hash key of 0 means first argument.)
  {:Cancel => true}  # or {'Cancel' => true} or {6 => true}
}

ev.on_event(...) {|*args|
  {:return => 1, :xxx => yyy}
}

Returns library name. If the method fails to access library name, WIN32OLERuntimeError is raised.

tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library')
tlib.library_name # => Excel

Returns variable kind string.

tobj = WIN32OLE_TYPE.new('Microsoft Excel 9.0 Object Library', 'XlSheetType')
variables = tobj.variables
variables.each do |variable|
  puts "#{variable.name} #{variable.variable_kind}"
end

The result of above script is following:
  xlChart CONSTANT
  xlDialogSheet CONSTANT
  xlExcel4IntlMacroSheet CONSTANT
  xlExcel4MacroSheet CONSTANT
  xlWorksheet CONSTANT

Calls block once for each key in hsh, passing the key-value pair as parameters.

If no block is given, an enumerator is returned instead.

h = { "a" => 100, "b" => 200 }
h.each {|key, value| puts "#{key} is #{value}" }

produces:

a is 100
b is 200

Yields each environment variable name and its value as a 2-element Array:

h = {}
ENV.each_pair { |name, value| h[name] = value } # => ENV
h # => {"bar"=>"1", "foo"=>"0"}

Returns an Enumerator if no block given:

h = {}
e = ENV.each_pair # => #<Enumerator: {"bar"=>"1", "foo"=>"0"}:each_pair>
e.each { |name, value| h[name] = value } # => ENV
h # => {"bar"=>"1", "foo"=>"0"}

Returns an IO object representing the current file. This will be a File object unless the current file is a stream such as STDIN.

For example:

ARGF.to_io    #=> #<File:glark.txt>
ARGF.to_io    #=> #<IO:<STDIN>>

Iterates over each character of each file in ARGF.

This method allows you to treat the files supplied on the command line as a single file consisting of the concatenation of each named file. After the last character of the first file has been returned, the first character of the second file is returned. The ARGF.filename method can be used to determine the name of the file in which the current character appears.

If no block is given, an enumerator is returned instead.

Reads at most maxlen bytes from the ARGF stream in non-blocking mode.

Return the accept character set for all new CGI instances.

Set the accept character set for all new CGI instances.

The encoded :quote_char used in parsing and writing. See CSV::new for details.

Returns true if headers are written in output. See CSV::new for details.

Serialization support for the object returned by _getobj_.

Reinitializes delegation from a serialized object.

Can be used to set eoutvar as described in ERB::new. It’s probably easier to just use the constructor though, since calling this method requires the setup of an ERB compiler object.

Returns true if the ipaddr is an IPv4-compatible IPv6 address.

Returns a new ipaddr built by converting the native IPv4 address into an IPv4-compatible IPv6 address.