How do I get monitor resolution in Python

Question

What is the simplest way to get monitor resolution  preferably in a tuple

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In Windows  you can also use ctypes with GetSystemMetrics     import ctypes user32   ctypes windll user32 screensize   user32 GetSystemMetrics 0   user32 GetSystemMetrics 1    so that you don t need to install the pywin32 package  it doesn t need anything that doesn t come with Python itself   For multi-monitor setups  you can retrieve the combined width and height of the virtual monitor   import ctypes user32   ctypes windll user32 screensize   user32 GetSystemMetrics 78   user32 GetSystemMetrics 79

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Taken directly from an answer to this post  How to get the screen size in Tkinter   import tkinter as tk  root   tk Tk    screen width   root winfo screenwidth   screen height   root winfo screenheight

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If you re using wxWindows  you can simply do   import wx  app   wx App False    the wx App object must be created first      print wx GetDisplaySize       returns a tuple

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I am using a get screen resolution method in one of my projects like the one below  which is basically an import chain  You can modify this according to Your needs by removing those parts that are not needed and move more likely ports upwards in the chain   PYTHON V3   sys version info  gt    3 0 0  and sys version info  lt   4 0 0              def get screen resolution self  measurement  px                        Tries to detect the screen resolution from the system           param measurement  The measurement to describe the screen resolution in  Can be either  px    inch  or  mm             return   screen width screen height  where screen width and screen height are int types according to measurement                      mm per inch   25 4         px per inch    72 0  most common         try    Platforms supported by GTK3  Fx Linux BSD             from gi repository import Gdk              screen   Gdk Screen get default               if measurement   px                   width   screen get width                   height   screen get height               elif measurement   inch                   width   screen get width mm   mm per inch                 height   screen get height mm   mm per inch             elif measurement   mm                   width   screen get width mm                   height   screen get height mm               else                  raise NotImplementedError  Handling  s is not implemented     measurement              return  width height          except              try   Probably the most OS independent way                 if PYTHON V3                       import tkinter                  else                      import Tkinter as tkinter                 root   tkinter Tk                   if measurement   px                       width   root winfo screenwidth                       height   root winfo screenheight                   elif measurement   inch                       width   root winfo screenmmwidth   mm per inch                     height   root winfo screenmmheight   mm per inch                 elif measurement   mm                       width   root winfo screenmmwidth                       height   root winfo screenmmheight                   else                      raise NotImplementedError  Handling  s is not implemented     measurement                  return  width height              except                  try   Windows only                     from win32api import GetSystemMetrics                      width px   GetSystemMetrics  0                      height px   GetSystemMetrics  1                      if measurement   px                           return  width px height px                      elif measurement   inch                           return  width px px per inch height px px per inch                      elif measurement   mm                           return  width px mm per inch height px mm per inch                      else                          raise NotImplementedError  Handling  s is not implemented     measurement                  except                      try    Windows only                         import ctypes                         user32   ctypes windll user32                         width px   user32 GetSystemMetrics 0                          height px   user32 GetSystemMetrics 1                          if measurement   px                               return  width px height px                          elif measurement   inch                               return  width px px per inch height px px per inch                          elif measurement   mm                               return  width px mm per inch height px mm per inch                          else                              raise NotImplementedError  Handling  s is not implemented     measurement                      except                          try    Mac OS X only                             import AppKit                              for screen in AppKit NSScreen screens                                    width px   screen frame   size width                                 height px   screen frame   size height                                 if measurement   px                                       return  width px height px                                  elif measurement   inch                                       return  width px px per inch height px px per inch                                  elif measurement   mm                                       return  width px mm per inch height px mm per inch                                  else                                      raise NotImplementedError  Handling  s is not implemented     measurement                          except                               try    Linux Unix                                 import Xlib display                                 resolution   Xlib display Display   screen   root get geometry                                   width px   resolution width                                 height px   resolution height                                 if measurement   px                                       return  width px height px                                  elif measurement   inch                                       return  width px px per inch height px px per inch                                  elif measurement   mm                                       return  width px mm per inch height px mm per inch                                  else                                      raise NotImplementedError  Handling  s is not implemented     measurement                              except                                  try    Linux Unix                                     if not self is in path  xrandr                                            raise ImportError  Cannot read the output of xrandr  if any                                        else                                          args     xrandr    -q    -d     0                                           proc   subprocess Popen args stdout subprocess PIPE                                          for line in iter proc stdout readline                                                  if isinstance line  bytes                                                   line   line decode  utf-8                                               if  Screen  in line                                                  width px   int line split   7                                                   height px   int line split   9   -1                                                   if measurement   px                                                       return  width px height px                                                  elif measurement   inch                                                       return  width px px per inch height px px per inch                                                  elif measurement   mm                                                       return  width px mm per inch height px mm per inch                                                  else                                                      raise NotImplementedError  Handling  s is not implemented     measurement                                  except                                        Failover                                     screensize   1366  768                                     sys stderr write  WARNING  Failed to detect screen size  Falling back to  sx s    screensize                                      if measurement   px                                           return screensize                                     elif measurement   inch                                           return  screensize 0  px per inch screensize 1  px per inch                                      elif measurement   mm                                           return  screensize 0  mm per inch screensize 1  mm per inch                                      else                                          raise NotImplementedError  Handling  s is not implemented     measurement

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Using Linux  the simplest way is to execute bash command  xrandr   grep       and parse its output using regexp    Also you can do it through PyGame  http   www daniweb com forums thread54881 html

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On Windows 8 1 I am not getting the correct resolution from either ctypes or tk  Other people are having this same problem for ctypes  getsystemmetrics returns wrong screen size To get the correct full resolution of a high DPI monitor on windows 8 1  one must call SetProcessDPIAware and use the following code   import ctypes user32   ctypes windll user32 user32 SetProcessDPIAware    w  h     user32 GetSystemMetrics 0   user32 GetSystemMetrics 1     Full Details Below   I found out that this is because windows is reporting a scaled resolution  It appears that python is by default a  system dpi aware  application  Types of DPI aware applications are listed here  http   msdn microsoft com en-us library windows desktop dn469266 28v vs 85 29 aspx dpi and the desktop scaling factor  Basically  rather than displaying content the full monitor resolution  which would make fonts tiny  the content is scaled up until the fonts are big enough   On my monitor I get  Physical resolution  2560 x 1440  220 DPI  Reported python resolution  1555 x 875  158 DPI   Per this windows site  http   msdn microsoft com en-us library aa770067 28v vs 85 29 aspx The formula for reported system effective resolution is   reported px current dpi   96 dpi    physical px  I m able to get the correct full screen resolution  and current DPI with the below code  Note that I call SetProcessDPIAware   to allow the program to see the real resolution   import tkinter as tk root   tk Tk    width px   root winfo screenwidth   height px   root winfo screenheight    width mm   root winfo screenmmwidth   height mm   root winfo screenmmheight      2 54 cm   in width in   width mm   25 4 height in   height mm   25 4 width dpi   width px width in height dpi   height px height in   print  Width   i px  Height   i px     width px  height px   print  Width   i mm  Height   i mm     width mm  height mm   print  Width   f in  Height   f in     width in  height in   print  Width   f dpi  Height   f dpi     width dpi  height dpi    import ctypes user32   ctypes windll user32 user32 SetProcessDPIAware    w  h     user32 GetSystemMetrics 0   user32 GetSystemMetrics 1   print  Size is  f  f     w  h    curr dpi   w 96 width px print  Current DPI is  f     curr dpi         Which returned   Width  1555 px  Height  875 px Width  411 mm  Height  232 mm Width  16 181102 in  Height  9 133858 in Width  96 099757 dpi  Height  95 797414 dpi Size is 2560 000000 1440 000000 Current DPI is 158 045016   I am running windows 8 1 with a 220 DPI capable monitor  My display scaling sets my current DPI to 158   I ll use the 158 to make sure my matplotlib plots are the right size with  from pylab import rcParams rcParams  figure dpi     curr dpi

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Old question but this is missing   I m new to python so please tell me if this is a  bad  solution  This solution is supported for Windows and MacOS only and it works just for the main screen - but the os is not mentioned in the question    Measure the size by taking a screenshot  As the screensize should not change this has to be done only once  There are more elegant solutions if you have a gui toolkit like GTK  wx      installed    see Pillow  pip install Pillow     from PIL import ImageGrab  img   ImageGrab grab   print  img size

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A lot of these answers use tkinter to find the screen height width  resolution   but sometimes it is necessary to know the dpi of your screen cross-platform compatible  This answer is from this link and left as a comment on another post  but it took hours of searching to find  I have not had any issues with it yet  but please let me know if it does not work on your system  import tkinter root   tkinter Tk   dpi   root winfo fpixels  1i    The documentation for this says  winfo fpixels number    Return the number of pixels for the given distance NUMBER  e g   quot 3c quot   as float  A distance number is a digit followed by a unit  so 3c means 3 centimeters  and the function gives the number of pixels on 3 centimeters of the screen  as found here   So to get dpi  we ask the function for the number of pixels in 1 inch of screen   quot 1i quot

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Another version using xrandr   import re from subprocess import run  PIPE  output   run   xrandr    stdout PIPE  stdout decode   result   re search r current   d   x   d     output  width  height   map int  result groups    if result else  800  600

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XWindows version      usr bin python  import Xlib import Xlib display  resolution   Xlib display Display   screen   root get geometry   print str resolution width     x    str resolution height

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You could use PyMouse   To get the screen size just use the screen size   attribute   from pymouse import PyMouse m   PyMouse   a   m screen size     a will return a tuple   X  Y   where X is the horizontal position and Y is the vertical position   Link to function in documentation

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Expanding on  user2366975 s answer  to get the current screen size in a multi-screen setup using Tkinter  code in Python 2 3    try        for Python 3     import tkinter as tk except ImportError        for Python 2     import Tkinter as tk   def get curr screen geometry                Workaround to get the size of the current screen in a multi-screen setup       Returns          geometry  str   The standard Tk geometry string               width x height   left   top              root   tk Tk       root update idletasks       root attributes  -fullscreen   True      root state  iconic       geometry   root winfo geometry       root destroy       return geometry    Should work cross-platform  tested on Linux only

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On Windows   from win32api import GetSystemMetrics  print  Width     GetSystemMetrics 0   print  Height     GetSystemMetrics 1     If you are working with high resolution screen  make sure your python interpreter is HIGHDPIAWARE   Based on this post

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For Linux  you can use this   import gi gi require version  Gdk    3 0   from gi repository import Gdk  s   Gdk Screen get default   screen width   s get width   screen height   s get height   print screen width  print screen height

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Utility script using pynput library  Posting here for ref     from pynput mouse import Controller as MouseController  def get screen size         quot  quot  quot Utility function to get screen resolution quot  quot  quot       mouse   MouseController        width   height   0      def  reset mouse position              Move the mouse to the top left of            the screen         mouse position    0  0         Reset mouse position      reset mouse position        count   0     while 1          count    1         mouse move count  0                     Get the current position of the mouse         left   mouse position 0             If the left doesn t change anymore  then           that s the screen resolution s width         if width    left                Add the last pixel             width    1                Reset count for use for height             count   0             break            On each iteration  assign the left to            the width         width   left            Reset mouse position      reset mouse position        while 1          count    1         mouse move 0  count             Get the current position of the mouse         right   mouse position 1             If the right doesn t change anymore  then           that s the screen resolution s height         if height    right                Add the last pixel             height    1             break            On each iteration  assign the right to            the height         height   right      return width  height    gt  gt  gt  get screen size    1920  1080

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A cross platform and easy way to do this is by using TKinter that comes with nearly all the python versions so you don t have to install anything   import tkinter root   tkinter Tk   root withdraw   WIDTH  HEIGHT   root winfo screenwidth    root winfo screenheight

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For later versions of PyGtk   import gi gi require version  Gdk    3 0   from gi repository import Gdk  display   Gdk Display get default   n monitors   display get n monitors   print  there are  d monitors    n monitors  for m in range n monitors     monitor   display get monitor m    geometry   monitor get geometry     print  monitor  d   d x  d     m  geometry width  geometry height

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If you are working on Windows OS  you can use OS module to get it   import os cmd    wmic desktopmonitor get screenheight  screenwidth  size tuple   tuple map int os popen cmd  read   split   -2        It will return a tuple  Y X  where Y is the vertical size and X is the horizontal size  This code works on Python 2 and Python 3

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To get bits per pixel   import ctypes user32   ctypes windll user32 gdi32   ctypes windll gdi32  screensize    user32 GetSystemMetrics 0   user32 GetSystemMetrics 1   print  screensize   s   str screensize   dc   user32 GetDC None    screensize    gdi32 GetDeviceCaps dc 8   gdi32 GetDeviceCaps dc 10   gdi32 GetDeviceCaps dc 12   print  screensize   s   str screensize   screensize    gdi32 GetDeviceCaps dc 118   gdi32 GetDeviceCaps dc 117   gdi32 GetDeviceCaps dc 12   print  screensize   s   str screensize     parameters in gdi32        Vertical height of entire desktop in pixels  DESKTOPVERTRES   117       Horizontal width of entire desktop in pixels  DESKTOPHORZRES   118       Horizontal width in pixels  HORZRES   8       Vertical height in pixels  VERTRES   10       Number of bits per pixel  BITSPIXEL   12

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It s a little troublesome for retina screen  i use tkinter to get the fake size  use pilllow grab to get real size    import tkinter root   tkinter Tk   resolution width   root winfo screenwidth   resolution height   root winfo screenheight   image   ImageGrab grab   real width  real height   image width  image height ratio width   real width   resolution width ratio height   real height  resolution height

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In case you have PyQt4 installed  try the following code   from PyQt4 import QtGui import sys  MyApp   QtGui QApplication sys argv  V   MyApp desktop   screenGeometry   h   V height   w   V width   print  The screen resolution  width X height  is the following    print str w     X    str h     For PyQt5  the following will work   from PyQt5 import QtWidgets import sys  MyApp   QtWidgets QApplication sys argv  V   MyApp desktop   screenGeometry   h   V height   w   V width   print  The screen resolution  width X height  is the following    print str w     X    str h

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Using Linux Instead of regexp take the first line and take out the current resolution values   Current resolution of display  0    gt  gt  gt  screen   os popen  xrandr -q -d  0   readlines   0   gt  gt  gt  print screen Screen 0  minimum 320 x 200  current 1920 x 1080  maximum 1920 x 1920  gt  gt  gt  width   screen split   7   gt  gt  gt  print width 1920  gt  gt  gt  height   screen split   9   -1   gt  gt  gt  print height 1080  gt  gt  gt  print  Current resolution is  s x  s     width height  Current resolution is 1920 x 1080   This was done on xrandr 1 3 5  I don t know if the output is different on other versions  but this should make it easy to figure out

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I created a PyPI module for this reason   pip install screeninfo   The code   from screeninfo import get monitors for m in get monitors        print str m     Result   monitor 1920x1080 1920 0  monitor 1920x1080 0 0    It supports multi monitor environments  Its goal is to be cross platform  for now it supports Cygwin and X11 but pull requests are totally welcome

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If you are using the Qt toolkit specifically PySide  you can do the following   from PySide import QtGui import sys  app   QtGui QApplication sys argv  screen rect   app desktop   screenGeometry   width  height   screen rect width    screen rect height

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Using pygame   import pygame pygame init   infos   pygame display Info   screen size    infos current w  infos current h     1   However  if you re trying to set your window to the size of the screen  you might just want to do   pygame display set mode  0 0  pygame FULLSCREEN    to set your display to fullscreen mode   2

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On Linux we can use subprocess module  import subprocess cmd     xrandr   cmd2     grep        p   subprocess Popen cmd  stdout subprocess PIPE  p2   subprocess Popen cmd2  stdin p stdout  stdout subprocess PIPE  p stdout close    resolution string  junk   p2 communicate   resolution   resolution string split   0  resolution   resolution decode  utf-8    width   int resolution split  x   0  strip    heigth   int resolution split  x   1  strip

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Try pyautogui       import pyautogui resolution   pyautogui size   print resolution

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Here is a quick little Python program that will display the information about your multi-monitor setup   import gtk  window   gtk Window      the screen contains all monitors screen   window get screen   print  screen size   d x  d     gtk gdk screen width   gtk gdk screen height       collect data about each monitor monitors      nmons   screen get n monitors   print  there are  d monitors    nmons for m in range nmons     mg   screen get monitor geometry m    print  monitor  d   d x  d     m mg width mg height    monitors append mg     current monitor curmon   screen get monitor at window screen get active window    x  y  width  height   monitors curmon  print  monitor  d   d x  d  current      curmon width height      Here s an example of its output   screen size  5120 x 1200 there are 3 monitors monitor 0  1600 x 1200 monitor 1  1920 x 1200 monitor 2  1600 x 1200 monitor 1  1920 x 1200  current

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And for completeness  Mac OS X  import AppKit   screen frame   size width  screen frame   size height      for screen in AppKit NSScreen screens      will give you a list of tuples containing all screen sizes  if multiple monitors present

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On Linux  import subprocess import re  def getScreenDimensions        xrandrOutput   str subprocess Popen   xrandr    stdout subprocess PIPE  communicate   0       matchObj   re findall r current s  d   x   d     xrandrOutput      if matchObj          return  int matchObj 0  0    int matchObj 0  1     screenWidth  screenHeight   getScreenDimensions   print f  screenWidth  x  screenHeight

[python] How do I get monitor resolution in Python?

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