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The goal of screenshot is to take a screenshot easily and locate image position on a display with R.
You can install the development version from GitHub with:
# install.packages("remotes")
remotes::install_github("matutosi/screenshot")
install.packages("screenshot") # You can also install from CRAN:On Windows, need to install screenshot.exe by install_screenshot(). This exe file is compiled from codes shown below.
https://superuser.com/questions/75614/take-a-screen-shot-from-command-line-in-windows#answer-1751844
library(screenshot)
# required on win
install_screenshot()
# if you want to install another directory
# bin_dir <- "SET_YOUR DIRECTORY"
# install_screenshot(bin_dir)On Mac screencapture is usually available.
On Linux GNOME desktop use gnome-screenshot. If not installed, run sudo apt install gnome-screenshot.
You can use screenshot() to take a screenshot easily.
To locate image from a screenshot, use locate_image(). In this case, bottom left corner of screenshot image was cut off as needle image.
sc <- screenshot()
sc_image <- imager::load.image(sc)
w <- 100
h <- 80
pos_x <- 1
pos_y <- imager::height(sc_image) - h
needle <- hay2needle(sc_image, pos_x, pos_y, w, h)
(locate_image(needle)) # center location
pos <- locate_image(needle, center = FALSE)
found <- hay2needle(sc_image, pos[1], pos[2], w, h)
layout(c(1:3))
plot(sc_image)
plot(needle)
plot(found)On Windows, clipboad image can be saved by save_clipboard_image().
When changing display DPI scaling, need to adjust position.
# when using 125%
pos <- locate_image(IMAGE_TO_CLICK) / 1.25
KeyboardSimulator::mouse.move(pos[1], pos[2])
KeyboardSimulator::mouse.click()You can see display scale in setting app as shown below.
Toshikazu Matsumura (2023) screenshot. Screenshot and locate image Easily. https://github.com/matutosi/screenshot/.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.