如何在R中获得屏幕分辨率 [英] How can I get the screen resolution in R

问题描述

如何获得以像素为单位的屏幕分辨率(高度，宽度)?

How can I get screen resolution (height, width) in pixels?

推荐答案

您可以使用命令行界面 WMI

You could use commad-line interface to WMI

> system("wmic desktopmonitor get screenheight")
ScreenHeight  
900   

您可以使用system

(scr_width <- system("wmic desktopmonitor get screenwidth", intern=TRUE))
# [1] "ScreenWidth  \r" "1440         \r" "\r"
(scr_height <- system("wmic desktopmonitor get screenheight", intern=TRUE))
# [1] "ScreenHeight  \r" "900           \r" "\r" 

在多个屏幕上，输出例如是

With multiple screens, the output is, e.g.,

[1] "ScreenWidth  \r" "1600         \r" "1600         \r" ""

我们希望除第一个和最后一个值外的所有值都转换为数字

We want all but the first and last values, converted to numbers

as.numeric(c(
  scr_width[-c(1, length(scr_width))], 
  scr_height[-c(1, length(scr_height))]
))
# [1] 1440  900

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