screenshot

Go library to capture desktop screen.
Multiple display supported.
Supported GOOS: windows, darwin, linux, freebsd, openbsd, and netbsd.
cgo free except for GOOS=darwin.

example

sample program main.go

 package main

 import (
 	"github.com/kbinani/screenshot"
 	"image/png"
 	"os"
 	"fmt"
 )

 func main() {
 	n := screenshot.NumActiveDisplays()

 	for i := 0; i < n; i++ {
 		bounds := screenshot.GetDisplayBounds(i)

 		img, err := screenshot.CaptureRect(bounds)
 		if err != nil {
 			panic(err)
 		}
 		fileName := fmt.Sprintf("%d_%dx%d.png", i, bounds.Dx(), bounds.Dy())
 		file, _ := os.Create(fileName)
 		defer file.Close()
 		png.Encode(file, img)

 		fmt.Printf("#%d : %v \"%s\"\n", i, bounds, fileName)
 	}
 }

output example

 $ go run main.go
 #0 : (0,0)-(1280,800) "0_1280x800.png"
 #1 : (-293,-1440)-(2267,0) "1_2560x1440.png"
 #2 : (-1373,-1812)-(-293,108) "2_1080x1920.png"
 $ ls -1
 0_1280x800.png
 1_2560x1440.png
 2_1080x1920.png
 main.go

coordinate

Y-axis is downward direction in this library. The origin of coordinate is upper-left corner of main display. This means coordinate system is similar to Windows OS

license

MIT Licence

author

kbinani