How can I get the screen resolution in R

You could use commad-line interface to WMI

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

You could capture result with 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" 

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

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

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

It's easy with JavaScript: you just do

window.screen.heightwindow.screen.width

You can call JavaScript from R using the SpiderMonkey package from OmegaHat.

You could also solve this with Java, and use the rJava package to access it.

library(rJava).jinit()toolkit <- J("java.awt.Toolkit")default_toolkit <- .jrcall(toolkit, "getDefaultToolkit")dim <- .jrcall(default_toolkit, "getScreenSize")height <- .jcall(dim, "D", "getHeight")width <- .jcall(dim, "D", "getWidth")

Accepted answer does not work on Windows 8 and later.

Use this:

system("wmic path Win32_VideoController get VideoModeDescription,CurrentVerticalResolution,CurrentHorizontalResolution /format:value")

To get you screen resolution in a vector, you can implement it as:

  suppressWarnings(    current_resolution <- system("wmic path Win32_VideoController get CurrentHorizontalResolution,CurrentVerticalResolution /format:value", intern = TRUE)  %>%      strsplit("=") %>%      unlist() %>%      as.double()  )  current_resolution <- current_resolution[!is.na(current_resolution)]

Now you'll have a vector with length 2:

> current_resolution[1] 1920 1080