What is the simplest way to get monitor resolution (preferably in a tuple)?
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 >= (3,0,0) and sys.version_info < (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)
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,
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
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)
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)
Utility script using pynput
library. Posting here for ref.:
from pynput.mouse import Controller as MouseController
def get_screen_size():
"""Utility function to get screen resolution"""
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
>>> get_screen_size()
(1920, 1080)