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
Returns a new WIN32OLE_TYPE object. The first argument typelib specifies OLE type library name. The second argument specifies OLE class name.
WIN32OLE_TYPE.new('Microsoft Excel 9.0 Object Library', 'Application') # => WIN32OLE_TYPE object of Application class of Excel.
Returns a new WIN32OLE_TYPELIB object.
The first argument typelib specifies OLE type library name or GUID or OLE library file. The second argument is major version or version of the type library. The third argument is minor version. The second argument and third argument are optional. If the first argument is type library name, then the second and third argument are ignored.
tlib1 = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library') tlib2 = WIN32OLE_TYPELIB.new('{00020813-0000-0000-C000-000000000046}') tlib3 = WIN32OLE_TYPELIB.new('{00020813-0000-0000-C000-000000000046}', 1.3) tlib4 = WIN32OLE_TYPELIB.new('{00020813-0000-0000-C000-000000000046}', 1, 3) tlib5 = WIN32OLE_TYPELIB.new("C:\\WINNT\\SYSTEM32\\SHELL32.DLL") puts tlib1.name # -> 'Microsoft Excel 9.0 Object Library' puts tlib2.name # -> 'Microsoft Excel 9.0 Object Library' puts tlib3.name # -> 'Microsoft Excel 9.0 Object Library' puts tlib4.name # -> 'Microsoft Excel 9.0 Object Library' puts tlib5.name # -> 'Microsoft Shell Controls And Automation'
Returns Ruby object wrapping OLE variant. The first argument specifies Ruby object to convert OLE variant variable. The second argument specifies VARIANT type. In some situation, you need the WIN32OLE_VARIANT object to pass OLE method
shell = WIN32OLE.new("Shell.Application") folder = shell.NameSpace("C:\\Windows") item = folder.ParseName("tmp.txt") # You can't use Ruby String object to call FolderItem.InvokeVerb. # Instead, you have to use WIN32OLE_VARIANT object to call the method. shortcut = WIN32OLE_VARIANT.new("Create Shortcut(\&S)") item.invokeVerb(shortcut)
Duplicates self and resets its offset.
d = DateTime.new(2001,2,3,4,5,6,'-02:00') #=> #<DateTime: 2001-02-03T04:05:06-02:00 ...> d.new_offset('+09:00') #=> #<DateTime: 2001-02-03T15:05:06+09:00 ...>
Returns a new binding each time near TOPLEVEL_BINDING for runs that do not specify a binding.
Creates a new ipaddr containing the given network byte ordered string form of an IP address.
Returns an arbitrary seed value. This is used by Random.new when no seed value is specified as an argument.
Random.new_seed #=> 115032730400174366788466674494640623225
Creates a new MonitorMixin::ConditionVariable associated with the Monitor object.
This string is put at the end of a line that holds a JSON array.
This string is put at the end of a line that holds a JSON array.
newton.rb
Solves the nonlinear algebraic equation system f = 0 by Newton’s method. This program is not dependent on BigDecimal.
To call:
n = nlsolve(f,x)
where n is the number of iterations required,
x is the initial value vector
f is an Object which is used to compute the values of the equations to be solved.
It must provide the following methods:
returns the values of all functions at x
returns 0.0
returns 1.0
returns 2.0
returns 10.0
returns the convergence criterion (epsilon value) used to determine whether two values are considered equal. If |a-b| < epsilon, the two values are considered equal.
On exit, x is the solution vector.
Creates a new Lazy enumerator. When the enumerator is actually enumerated (e.g. by calling force), obj will be enumerated and each value passed to the given block. The block can yield values back using yielder. For example, to create a “filter+map” enumerator:
def filter_map(sequence) Lazy.new(sequence) do |yielder, *values| result = yield *values yielder << result if result end end filter_map(1..Float::INFINITY) {|i| i*i if i.even?}.first(5) #=> [4, 16, 36, 64, 100]
Generates a new enumerator object that iterates over the elements of given enumerable objects in sequence.
e = Enumerator::Chain.new(1..3, [4, 5]) e.to_a #=> [1, 2, 3, 4, 5] e.size #=> 5
Create a new SHA2 hash object with a given bit length.
Valid bit lengths are 256, 384 and 512.
Construct a new Closure object.
ret is the C type to be returned
args is an Array of arguments, passed to the callback function
abi is the abi of the closure
If there is an error in preparing the ffi_cif or ffi_prep_closure, then a RuntimeError will be raised.
Constructs a Function object.
ptr is a referenced function, of a Fiddle::Handle
args is an Array of arguments, passed to the ptr function
ret_type is the return type of the function
abi is the ABI of the function
name is the name of the function
need_gvl is whether GVL is needed to call the function
Create a new handler that opens library with flags.
If no library is specified or nil is given, DEFAULT is used, which is the equivalent to RTLD_DEFAULT. See man 3 dlopen for more.
lib = Fiddle::Handle.new
The default is dependent on OS, and provide a handle for all libraries already loaded. For example, in most cases you can use this to access libc functions, or ruby functions like rb_str_new.
Create a new handler with the open handlers
Used internally by Fiddle::Importer.dlload
Wraps the C pointer addr as a C struct with the given types.
When the instance is garbage collected, the C function func is called.
See also Fiddle::Pointer.new
Create a new pinned object reference. The Fiddle::Pinned instance will prevent the GC from moving object.
Create a new pointer to address with an optional size and freefunc.
freefunc will be called when the instance is garbage collected.