github.com/AnomalRoil/screenshot

screenshot

• Go library to capture desktop screen.
• Support Windows, Mac, Linux, FreeBSD, OpenBSD, and NetBSD environment.
• Multiple display supported.
• cgo free for Windows, Linux, FreeBSD, OpenBSD, and NetBSD.
• requires cgo on Darwin (Mac/OSX) to work, but has a fallback emitting ErrNoCGO to ease integration.

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