Ruby 1.9.2 リファレンスマニュアル > ライブラリ一覧 > win32oleライブラリ > WIN32OLE_VARIANTクラス
class WIN32OLE_VARIANT
クラスの継承リスト: WIN32OLE_VARIANT < Object < Kernel < BasicObject
Abstract
特異メソッド
array(ary, vt)-
Returns Ruby object wrapping OLE variant whose variant type is VT_ARRAY. The first argument should be Array object which specifies dimensions and each size of dimensions of OLE array. The second argument specifies variant type of the element of OLE array.
The following create 2 dimensions OLE array. The first dimensions size is 3, and the second is 4.
ole_ary = WIN32OLE_VARIANT.array([3,4], VT_I4) ruby_ary = ole_ary.value # => [[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]
new(val, vartype) -> WIN32OLE_VARIANT-
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)
インスタンスメソッド
self[i,j,...] -> WIN32OLE_VARIANT-
Returns the element of WIN32OLE_VARIANT object (OLE array). This method is available only when the variant type of WIN32OLE_VARIANT object is VT_ARRAY.
REMARK:
The all indicies should be 0 or natural number and lower than or equal to max indicies. (This point is different with Ruby Array indicies.) obj = WIN32OLE_VARIANT.new([[1,2,3],[4,5,6]]) p obj[0,0] # => 1 p obj[1,0] # => 4 p obj[2,0] # => WIN32OLERuntimeError p obj[0, -1] # => WIN32OLERuntimeError
self[i,j,...] = val-
Set the element of WIN32OLE_VARIANT object (OLE array) to val. This method is available only when the variant type of WIN32OLE_VARIANT object is VT_ARRAY.
REMARK:
The all indicies should be 0 or natural number and lower than or equal to max indicies. (This point is different with Ruby Array indicies.) obj = WIN32OLE_VARIANT.new([[1,2,3],[4,5,6]]) obj[0,0] = 7 obj[1,0] = 8 p obj.value # => [[7,2,3], [8,5,6]] obj[2,0] = 9 # => WIN32OLERuntimeError obj[0, -1] = 9 # => WIN32OLERuntimeError
value -> Object-
Returns Ruby object value from OLE variant.
obj = WIN32OLE_VARIANT.new(1, WIN32OLE::VARIANT::VT_BSTR) obj.value # => "1" (not Fixnum object, but String object "1")
value=(val)-
Sets variant value to val. If the val type does not match variant value type(vartype), then val is changed to match variant value type(vartype) before setting val. Thie method is not available when vartype is VT_ARRAY(except VT_UI1|VT_ARRAY). If the vartype is VT_UI1|VT_ARRAY, the val should be String object.
obj = WIN32OLE_VARIANT.new(1) # obj.vartype is WIN32OLE::VARIANT::VT_I4 obj.value = 3.2 # 3.2 is changed to 3 when setting value. p obj.value # => 3
vartype -> Class-
Returns OLE variant type.
obj = WIN32OLE_VARIANT.new("string") obj.vartype # => WIN32OLE::VARIANT::VT_BSTR
定数
EmptyNothingNull