--- Win32API#call([args ...])
--- Win32API#Call([args ...])
    APIؿ 򥳡뤷ޤꤹͤ new ΰ
    ˽ޤä˥ݥ󥿤ϤƤΥݥ󥿤λؤΰͤ
    ꤵϤΰ򤢤餫ݤƤɬפޤ

    㤨Сʸ֤ؿ򥳡뤹ϰʲΤ褦ˤޤ
       obj = Win32API.new 'dllname.dll', 'foo', 'p', 'v'
       arg = "\0" * 256
       obj.call(arg)
    ݥ󥿤ϤϰʲΤ褦ˤޤ
       obj = Win32API.new 'dllname.dll', 'foo', 'p', 'v'
       args = ["\0" * 256, "\0" * 256, "\0" * 256,]
       obj.call(args.pack("p3"))

