Module: DataExplorer

Included in:
Convert::DatToAscii
Defined in:
lib/data_explorer.rb,
lib/data_explorer/convert/dat_to_ascii.rb

Defined Under Namespace

Modules: Convert

Constant Summary collapse

@@data_explorer_instance = 
nil

Instance Method Summary collapse

Instance Method Details

#close_data_explorer ⇒ Object 



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# File 'lib/data_explorer.rb', line 12

def close_data_explorer
  if @@data_explorer_instance
    data_explorer.quit
    data_explorer.ole_free
    @@data_explorer_instance = nil
  end
end

#data_explorer ⇒ Object 



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# File 'lib/data_explorer.rb', line 7

def data_explorer
  @@data_explorer_instance = WIN32OLE.new('DataExplorer.Application') unless @@data_explorer_instance
  @@data_explorer_instance
end

#data_explorer_version ⇒ Object 



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# File 'lib/data_explorer.rb', line 20

def data_explorer_version
  # Gets the version information for a windows executable
  # trivially modified from: http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/161140
  #fname = 'D:\ruby\bin\ruby.exe'  
  fname = data_explorer.fullname
  get_file_version_info_size = Win32API.new('Version', 'GetFileVersionInfoSize', 'PP', 'L')
  get_file_version_info     = Win32API.new('Version', 'GetFileVersionInfo', 'PLLP', 'L')
  ver_query_value          = Win32API.new('Version', 'VerQueryValue', 'PPPP', 'I')
  memcpy = Win32API.new('msvcrt', 'memcpy', 'PLL', 'L')

  addr = "\0"*4

  v_info_sz = get_file_version_info_size.call(fname, addr)

  raise 'GFVIS failed' if v_info_sz == 0
  v_info = "\0"*v_info_sz
  get_file_version_info.call(fname, 0, v_info_sz, v_info)

  v_val_sz = "\0"*4
  ver_query_value.call(v_info, '\\', addr, v_val_sz)
  v_bufsz = v_val_sz.unpack('L')[0]
  v_buf = "\0" * v_bufsz
  v_src = addr.unpack('L')[0]
  ret = memcpy.call(v_buf, v_src, v_bufsz)
  raise 'memcpy failed' if ret == 0

  raise 'Oops' unless v_buf[0, 4].unpack('L')[0] == 0xFEEF04BD
  #p v_buf[0x08, 8].unpack('S*').values_at(1,0,3,2)  #-> [1, 8, 2, 0]
  #p v_buf[0x10, 8].unpack('S*').values_at(1,0,3,2)  #-> [1, 8, 2, 0]
  v_buf[0x08, 8].unpack('S*').values_at(1,0,3,2).join('.')
end