退房 display macros 和 screen macros Xlib manual .

明确地:

• 从 first link ScreenCount() ScreenOfDisplay()
• second link : WidthOfScreen() , HeightOfScreen()

这可能对cli和脚本编写有帮助

xwininfo -root

xrandr

如果正在使用Xinerama,请尝试 XineramaQueryScreens (X)WidthOfScreen / (X)HeightOfScreen.

:x.0 , :x.1 (等)

对于现代X服务器,还有XRandR扩展,它提供了最新的多屏幕布局信息模型,包括重叠屏幕和动态屏幕更改。

其文档可在 XRandR 1.3.1 Protocol spec libXrandr man page

清洁的 xrandr imagemagick使用的输出

$ xrandr |grep \* |awk '{print $1}'

结果如下:

1920x1080

库X11仅适用于类unix操作系统,因此它不是跨平台的解决方案。

完整代码

#include <stdio.h>

#include <X11/Xlib.h>

int
main(const int argc, const char *argv[])
{

    Display *display;
    Screen *screen;

    // open a display
    display = XOpenDisplay(NULL);

    // return the number of available screens
    int count_screens = ScreenCount(display);

    printf("Total count screens: %d\n", count_screens);


    for (int i = 0; i < count_screens; ++i) {
        screen = ScreenOfDisplay(display, i);
        printf("\tScreen %d: %dX%d\n", i + 1, screen->width, screen->height);
    }

    // close the display
    XCloseDisplay(display);

   return 0;
}

汇编

gcc -o setup setup.c -std=c11 `pkg-config --cflags --libs x11`

(我的计算机的实际值)

Total count screens: 1
    Screen 1: 1366X768

基于:

1. https://tronche.com/gui/x/xlib/display/opening.html
2. https://tronche.com/gui/x/xlib/display/display-macros.html
3. https://tronche.com/gui/x/xlib/display/screen-information.html
4. https://stackoverflow.com/a/1829747/6003870

python

import os
from Xlib import X, display
d = display.Display()
s = d.screen().root
output = os.popen("xrandr --listmonitors | grep '*' | awk {'print $4'}").read().splitlines()
num_sc = s.xinerama_get_screen_count().screen_count
width = s.get_geometry().width
height = s.get_geometry().height
print("Total count screens: %s" % num_sc)
for i in range(num_sc):
    print("\tScreen %s(%s): %sX%s" % (i, output[i], width, height))

猛击

$ xrandr --listmonitors
$ xrandr
$ xrandr | grep '*' | awk {'print $1'}