doorstuck adjustable fullscreen script 1.1

#doorstuck adjustable fullscreen 1.1

class AdjustableResizer

  CreateWindowEx            = Win32API.new('user32'  , 'CreateWindowEx'           , 'ippiiiiiiiii', 'i')
  GetDC                     = Win32API.new('user32'  , 'GetDC'                    , 'i'           , 'i')
  GetSystemMetrics          = Win32API.new('user32'  , 'GetSystemMetrics'         , 'i'           , 'i')
  FillRect                  = Win32API.new('user32'  , 'FillRect'                 , 'ipi'         , 'i')
  FindWindow                = Win32API.new('user32'  , 'FindWindow'               , 'pp'          , 'i')
  ReleaseDC                 = Win32API.new('user32'  , 'ReleaseDC'                , 'ii'          , 'i')
  SetWindowLong             = Win32API.new('user32'  , 'SetWindowLong'            , 'iii'         , 'i')
  SetWindowPos              = Win32API.new('user32'  , 'SetWindowPos'             , 'iiiiiii'     , 'i')
  ShowWindow                = Win32API.new('user32'  , 'ShowWindow'               , 'ii'          , 'i')
  UpdateWindow              = Win32API.new('user32'  , 'UpdateWindow'             , 'i'           , 'i')
  GetWindowRect             = Win32API.new('user32'  , 'GetWindowRect'            , 'ip'          , 'i')
  CreateSolidBrush          = Win32API.new('gdi32'   , 'CreateSolidBrush'         , 'i'           , 'i')
  DeleteObject              = Win32API.new('gdi32'   , 'DeleteObject'             , 'i'           , 'i')

  def initialize()
    @defaultRpgMakerX = 544
    @defaultRpgMakerY = 416

    @screenRect = Rect.new(0, 0, GetSystemMetrics.call(0), GetSystemMetrics.call(1))

    #universal constant
    @rpgMakerX = 640
    #height that we would render if rpg maker would render non 32 tiles
    wishfulY = @rpgMakerX * @screenRect.height / @screenRect.width

    #divide by 32 and multiply by 32 to get the actual number of pixels that
    #could be rendered by RPG maker without glitches
    @rpgMakerY = (wishfulY / 32) * 32

    rpgMakerRaimander = wishfulY - @rpgMakerY

    #now we need to calculate the actual screen margin from top and bottom
    actualScreenMargin = @screenRect.height * rpgMakerRaimander / wishfulY
    @mainHeight = @screenRect.height - actualScreenMargin
    @upperMargin = actualScreenMargin / 2

    #draw black background on all the screen
    @BackgroundHandler = CreateWindowEx.call(0x08000008, 'Static', '', 0x80000000, 0, 0, 0, 0, 0, 0, 0, 0)
    @mainWindowHandler = FindWindow.call('RGSS Player', 0)

    windowRectPointer = [0, 0, 0, 0].pack('l4')
    GetWindowRect.call(@mainWindowHandler, windowRectPointer)
    @originalWindowRect = windowRectPointer.unpack('l4')
  end

  def backToWindowed
    Graphics.resize_screen(@defaultRpgMakerX, @defaultRpgMakerY)
    SetWindowLong.call(@mainWindowHandler, -16, 0x14CA0000)
    SetWindowPos.call(@mainWindowHandler, -1, @originalWindowRect[0], @originalWindowRect[1], @originalWindowRect[2] - @originalWindowRect[0], @originalWindowRect[3] - @originalWindowRect[1], 0)
    ShowWindow.call(@BackgroundHandler, 0)
  end

  def adjustableFullscreen
    Graphics.resize_screen(@rpgMakerX, @rpgMakerY)
    paintBackground()
    SetWindowLong.call(@mainWindowHandler, -16, 0x14000000)
    SetWindowPos.call(@mainWindowHandler, -1, 0, @upperMargin, @screenRect.width, @mainHeight, 0)
  end

  def paintBackground
    ShowWindow.call(@BackgroundHandler, 3)
    UpdateWindow.call(@BackgroundHandler)
    dc    = GetDC.call(@BackgroundHandler)
    rect  = [0, 0, @screenRect.width, @screenRect.height].pack('l4')
    brush = CreateSolidBrush.call(0)
    FillRect.call(dc, rect, brush)
    ReleaseDC.call(@BackgroundHandler, dc)
    DeleteObject.call(brush)
  end

end

resizer = AdjustableResizer.new()
resizer.adjustableFullscreen()