如何在Python中获得显示器分辨率?

时间:2010-06-27 23:39:22

标签: python screen resolution

获取显示器分辨率的最简单方法是什么(最好是在元组中)?

30 个答案:

答案 0 :(得分:96)

在Windows中,您还可以将ctypes与GetSystemMetrics()

一起使用
import ctypes
user32 = ctypes.windll.user32
screensize = user32.GetSystemMetrics(0), user32.GetSystemMetrics(1)

这样你就不需要安装pywin32包了; 它不需要Python本身没有的任何东西。

对于多显示器设置,您可以检索虚拟显示器的组合宽度和高度:

import ctypes
user32 = ctypes.windll.user32
screensize = user32.GetSystemMetrics(78), user32.GetSystemMetrics(79)

答案 1 :(得分:59)

我出于这个原因创建了PyPI module

pip install screeninfo

代码:

from screeninfo import get_monitors
for m in get_monitors():
    print(str(m))

结果:

monitor(1920x1080+1920+0)
monitor(1920x1080+0+0)

它支持多监视器环境。它的目标是跨平台;现在它支持Cygwin和X11,但拉取请求是完全受欢迎的。

答案 2 :(得分:53)

在Windows上:

from win32api import GetSystemMetrics

print("Width =", GetSystemMetrics(0))
print("Height =", GetSystemMetrics(1))

如果您使用的是高分辨率屏幕,请确保您的python解释器是HIGHDPIAWARE。

基于this帖子。

答案 3 :(得分:42)

如果你正在使用wxWindows,你可以这样做:

import wx

app = wx.App(False) # the wx.App object must be created first.    
print(wx.GetDisplaySize())  # returns a tuple

答案 4 :(得分:33)

直接来自这篇文章的回答: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()

答案 5 :(得分:19)

在Windows 8.1上,我无法从ctypes或tk获得正确的分辨率。 其他人对ctypes也有同样的问题:getsystemmetrics returns wrong screen size 要在Windows 8.1上获得高DPI监视器的正确完整分辨率,必须调用SetProcessDPIAware并使用以下代码:

import ctypes
user32 = ctypes.windll.user32
user32.SetProcessDPIAware()
[w, h] = [user32.GetSystemMetrics(0), user32.GetSystemMetrics(1)]

以下详细信息:

我发现这是因为Windows正在报告缩放分辨率。看来python默认是'system dpi aware'应用程序。此处列出了DPI感知应用程序的类型: http://msdn.microsoft.com/en-us/library/windows/desktop/dn469266%28v=vs.85%29.aspx#dpi_and_the_desktop_scaling_factor

基本上,不是显示内容的完整显示器分辨率,这会使字体变得很小,而是将内容放大,直到字体足够大。

在我的显示器上,我得到:
物理分辨率:2560 x 1440(220 DPI)
报告的python分辨率:1555 x 875(158 DPI)

根据此Windows网站:http://msdn.microsoft.com/en-us/library/aa770067%28v=vs.85%29.aspx 报告的系统有效分辨率的公式为: (reported_px * current_dpi)/(96 dpi)= physical_px

我可以使用以下代码获得正确的全屏分辨率和当前DPI。 请注意,我调用SetProcessDPIAware()以允许程序查看真实分辨率。

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))    

返回了:

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

我正在运行带有220 DPI显示器的Windows 8.1。 我的显示缩放将当前的DPI设置为158。

我将使用158来确保我的matplotlib图是正确的尺寸: 来自pylab import rcParams rcParams ['figure.dpi'] = curr_dpi

答案 6 :(得分:15)

完整性,Mac OS X

import AppKit
[(screen.frame().size.width, screen.frame().size.height)
    for screen in AppKit.NSScreen.screens()]

将为您提供包含所有屏幕大小的元组列表(如果存在多个监视器)

答案 7 :(得分:13)

如果您专门使用Qt工具包PySide,则可以执行以下操作:

from PySide import QtGui
import sys

app = QtGui.QApplication(sys.argv)
screen_rect = app.desktop().screenGeometry()
width, height = screen_rect.width(), screen_rect.height()

答案 8 :(得分:12)

使用Linux,最简单的方法是执行bash命令

xrandr | grep '*'

并使用regexp解析其输出。

你也可以通过PyGame:http://www.daniweb.com/forums/thread54881.html

来完成

答案 9 :(得分:12)

这是一个快速的小Python程序,它将显示有关多显示器设置的信息:

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)  

以下是其输出的一个示例:

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)

答案 10 :(得分:8)

我在我的一个项目中使用get_screen_resolution方法,如下面的那个,基本上是一个导入链。您可以根据需要修改此项,方法是删除那些不需要的部分,并在链中向上移动更多可能的端口。

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)

答案 11 :(得分:6)

XWindows版本:

#!/usr/bin/python

import Xlib
import Xlib.display

resolution = Xlib.display.Display().screen().root.get_geometry()
print str(resolution.width) + "x" + str(resolution.height)

答案 12 :(得分:5)

请尝试以下代码:

import subprocess
resuls = subprocess.Popen(['xrandr'],stdout=subprocess.PIPE).communicate()[0].split("current")[1].split(",")[0]
width = resuls.split("x")[0].strip()
heigth = resuls.split("x")[1].strip()
print width + "x" + heigth

答案 13 :(得分:5)

旧问题但缺少这个问题。 我是python的新手,所以请告诉我这是否是一个“坏”的解决方案。 此解决方案仅适用于Windows和MacOS,它仅适用于主屏幕 - 但问题中未提及操作系统。

通过截屏来衡量尺寸。由于屏幕尺寸不应该改变,因此必须只进行一次。 如果你有一个像GTK,wx,...安装的gui工具包,那么有更优雅的解决方案。

请参阅Pillow

pip install Pillow
from PIL import ImageGrab

img = ImageGrab.grab()
print (img.size)

答案 14 :(得分:5)

如果您安装了PyQt4,请尝试以下代码:

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))

对于PyQt5,以下内容将起作用:

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))

答案 15 :(得分:3)

使用Linux 而不是regexp取第一行并取出当前的分辨率值。

当前显示分辨​​率:0

>>> screen = os.popen("xrandr -q -d :0").readlines()[0]
>>> print screen
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 1920 x 1920
>>> width = screen.split()[7]
>>> print width
1920
>>> height = screen.split()[9][:-1]
>>> print height
1080
>>> print "Current resolution is %s x %s" % (width,height)
Current resolution is 1920 x 1080

这是在xrandr 1.3.5上完成的,我不知道其他版本的输出是否不同,但这应该很容易弄明白。

答案 16 :(得分:2)

获取每像素位数:

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))

gdi32中的参数:

#/// 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,

答案 17 :(得分:2)

使用xrandr的另一个版本:

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)

答案 18 :(得分:2)

使用pygame

import pygame
pygame.init()
infos = pygame.display.Info()
screen_size = (infos.current_w, infos.current_h)

[1]

但是,如果您尝试将窗口设置为屏幕大小,您可能只想这样做:

pygame.display.set_mode((0,0),pygame.FULLSCREEN)

将显示设置为全屏模式。 [2]

答案 19 :(得分:1)

尝试pyautogui:

import pyautogui
resolution = pyautogui.size()
print(resolution) 

答案 20 :(得分:1)

许多答案都使用tkinter来查找屏幕的高度/宽度(分辨率),但是有时有必要知道您的屏幕跨平台兼容的 dpi 。 这个答案来自这个link,留下来作为对another post的评论,但是花了好几个小时才能找到。我还没有任何问题,但是如果它在您的系统上不起作用,请告诉我!

import tkinter
root = tkinter.Tk()
dpi = root.winfo_fpixels('1i')

文档说明:

winfo_fpixels(number)
# Return the number of pixels for the given distance NUMBER (e.g. "3c") as float

距离数字是一个数字,后跟一个单位,因此3c表示3厘米,此函数给出屏幕3厘米(as found here)上的像素数。 因此,要获得dpi,我们要求函数提供1英寸屏幕(“ 1i”)中的像素数。

答案 21 :(得分:0)

您可以使用PyMouse。要获取屏幕大小,只需使用screen_size()属性:

from pymouse import PyMouse
m = PyMouse()
a = m.screen_size()

a将返回一个元组(X, Y),其中X是水平位置,Y是垂直位置。

Link to function in documentation.

答案 22 :(得分:0)

在Linux上,我们可以使用子流程模块

IFNULL(column, NULL)

答案 23 :(得分:0)

对于视网膜屏幕来说有点麻烦,我使用tkinter来获取假尺寸,使用药丸抓斗来获取实际尺寸:

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

答案 24 :(得分:0)

如果您使用的是Windows操作系统,则可以使用OS模块来获取它:

import os
cmd = 'wmic desktopmonitor get screenheight, screenwidth'
size_tuple = tuple(map(int,os.popen(cmd).read().split()[-2::]))

它将返回一个元组(Y,X),其中 Y 是水平尺寸, X 是垂直尺寸。这段代码适用于Python 2和Python 3

答案 25 :(得分:0)

扩展@user2366975的答案,以使用Tkinter(Python 2/3中的代码)在多屏幕设置中获取当前屏幕尺寸:

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

(应该可以跨平台工作,仅在Linux上进行测试)

答案 26 :(得分:0)

一个跨平台的简单方法是使用几乎所有python版本都附带的TKinter,因此您无需安装任何东西:

import tkinter
root = tkinter.Tk()
root.withdraw()
WIDTH, HEIGHT = root.winfo_screenwidth(), root.winfo_screenheight()

答案 27 :(得分:0)

对于更高版本的PyGtk:

storage.load({key: 'loginState'}).then(ret => {
      this.setState({
        user_id : ret.userid
      })
    })
    .catch(err => {
      console.warn(err.message);
    });

答案 28 :(得分:0)

对于Linux,您可以使用以下代码:

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)

答案 29 :(得分:0)

使用pynput库的实用程序脚本。在此处发布以供参考:

 
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)