go-vgo/robotgo

Robotgo

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Binding

Requirements

Default Cgo setup

macOS

brew install go
xcode-select --install

Windows

winget install GoLang.Go

winget install MartinStorsjo.LLVM-MinGW.UCRT
$env:CC = "clang"

winget install BrechtSanders.WinLibs.POSIX.UCRT
$env:CC = "gcc"

Linux (X11)

# Go (Snap if the distro package is too old)
sudo snap install go --classic
# or: sudo apt install golang

# Core (Cgo): compiler, libc, X11, XTest
sudo apt install gcc libc6-dev libx11-dev xorg-dev libxtst-dev

# Clipboard (X11)
sudo apt install xsel xclip

# Bitmap: libpng
sudo apt install libpng++-dev

# GoHook: XCB, XKB
sudo apt install xcb libxcb-xkb-dev x11-xkb-utils libx11-xcb-dev libxkbcommon-x11-dev libxkbcommon-dev

# Core (Cgo): compiler, libc, X11, XTest
sudo dnf install gcc glibc-devel libX11-devel libXtst-devel

# Clipboard (X11)
sudo dnf install xsel xclip

# Bitmap: libpng
sudo dnf install libpng-devel

# GoHook: XKB (Fedora < 34: xorg-x11-xkb-utils-devel instead of xkbcomp-devel)
sudo dnf install libxkbcommon-devel libxkbcommon-x11-devel xkbcomp-devel

Feature-specific dependencies

Cgo-free Builds

Build commands

# Current OS
CGO_ENABLED=0 go build -tags purego .

# Cross-compile
CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -tags win .
CGO_ENABLED=0 GOOS=darwin  GOARCH=arm64 go build -tags mac .
CGO_ENABLED=0 GOOS=linux   GOARCH=amd64 go build -tags x11 .
CGO_ENABLED=0 GOOS=linux   GOARCH=amd64 go build -tags wayland .
CGO_ENABLED=0 GOOS=linux   GOARCH=amd64 go build -tags libei .

Limitations

Wayland

libei (GNOME / KDE)

Installation

go get github.com/go-vgo/robotgo

import "github.com/go-vgo/robotgo"

Update

go get -u github.com/go-vgo/robotgo

Examples

Mouse

package main

import (
  "errors"
  "fmt"

  "github.com/go-vgo/robotgo"
)

func main() {
  robotgo.MouseSleep = 300

  robotgo.Move(100, 100)
  fmt.Println(robotgo.Location())
  robotgo.Move(100, -200) // multi screen supported
  robotgo.MoveSmooth(120, -150)
  fmt.Println(robotgo.Location())

  robotgo.ScrollDir(10, "up")
  robotgo.ScrollDir(20, "right")

  robotgo.Scroll(0, -10)
  robotgo.Scroll(100, 0)

  robotgo.MilliSleep(100)
  robotgo.ScrollSmooth(-10, 6)
  // robotgo.ScrollRelative(10, -100)

  robotgo.Move(10, 20)
  robotgo.MoveRelative(0, -10)
  robotgo.DragSmooth(10, 10)

  robotgo.Click("wheelRight")
  robotgo.Click("left", true)
  robotgo.MoveSmooth(100, 200, 1.0, 10.0)

  robotgo.Toggle("left")
  robotgo.Toggle("left", "up")

  // Check the returned errors, invalid arguments return an error
  if err := robotgo.ScrollDir(10, "forward"); err != nil {
    fmt.Println("robotgo.ScrollDir error:", err)
  }

  // Backends differ: Cgo returns an error, pure Go does a single left click and returns nil
  if err := robotgo.Click("left", "double"); err != nil {
    fmt.Println("robotgo.Click error:", err)
  }

  // MoveSmoothRelative reports a failed smooth move as ErrSmoothMove
  err := robotgo.MoveSmoothRelative(10, -10)
  if errors.Is(err, robotgo.ErrSmoothMove) {
    fmt.Println("smooth move failed:", err)
  }

  // Pure-Go backends return ErrNotSupported for unsupported operations
  err = robotgo.Move(100, 200)
  if errors.Is(err, robotgo.ErrNotSupported) {
    fmt.Println("robotgo.Move is not supported by this backend")
  }
}

Keyboard

package main

import (
  "errors"
  "fmt"

  "github.com/go-vgo/robotgo"
)

func main() {
  robotgo.Type("Hello World")
  robotgo.Type("だんしゃり", 0, 1)
  // robotgo.Type("テストする")

  robotgo.Type("Hi, Seattle space needle, Golden gate bridge, One world trade center.")
  robotgo.Type("Hi galaxy, hi stars, hi MT.Rainier, hi sea. こんにちは世界.")
  robotgo.Sleep(1)

  // ustr := uint32(robotgo.CharCodeAt("Test", 0))
  // robotgo.UnicodeType(ustr)

  robotgo.KeySleep = 100
  robotgo.KeyTap("enter")
  // robotgo.Type("en")
  robotgo.KeyTap("i", "alt", "cmd")

  arr := []string{"alt", "cmd"}
  robotgo.KeyTap("i", arr)

  robotgo.MilliSleep(100)
  robotgo.KeyToggle("a")
  robotgo.KeyToggle("a", "up")

  robotgo.WriteAll("Test")
  text, err := robotgo.ReadAll()
  if err == nil {
    fmt.Println(text)
  }

  // Unknown key names return an error instead of pressing a wrong key
  if err := robotgo.KeyTap("notakey"); err != nil {
    fmt.Println("robotgo.KeyTap error:", err)
  }

  // TypeStr returns the first typing error, Type only returns the count
  if err := robotgo.TypeStr("Hello, 世界"); err != nil {
    fmt.Println("robotgo.TypeStr error:", err)
  }

  // Hold a modifier, then always release it and check both errors
  if err := robotgo.KeyDown("shift"); err == nil {
    err = errors.Join(robotgo.KeyTap("a"), robotgo.KeyUp("shift"))
    if err != nil {
      fmt.Println("shift + a error:", err)
    }
  }
}

Screen

package main

import (
  "fmt"
  "strconv"

  "github.com/go-vgo/robotgo"
  "github.com/vcaesar/imgo"
)

func main() {
  x, y := robotgo.Location()
  fmt.Println("pos: ", x, y)

  color := robotgo.GetPixelColor(100, 200)
  fmt.Println("color---- ", color)

  sx, sy := robotgo.GetScreenSize()
  fmt.Println("get screen size: ", sx, sy)

  bit := robotgo.CaptureScreen(10, 10, 30, 30)
  defer robotgo.FreeBitmap(bit)

  img := robotgo.ToImage(bit)
  imgo.Save("test.png", img)

  num := robotgo.DisplaysNum()
  for i := 0; i < num; i++ {
    robotgo.DisplayID = i
    img1, _ := robotgo.CaptureImg()
    path1 := "save_" + strconv.Itoa(i)
    robotgo.Save(img1, path1+".png")
    robotgo.SaveJpeg(img1, path1+".jpeg", 50)

    img2, _ := robotgo.CaptureImg(10, 10, 20, 20)
    robotgo.Save(img2, "test_"+strconv.Itoa(i)+".png")

    x, y, w, h := robotgo.GetDisplayBounds(i)
    img3, err := robotgo.CaptureImg(x, y, w, h)
    fmt.Println("Capture error: ", err)
    robotgo.Save(img3, path1+"_1.png")
  }
}

Bitmap

package main

import (
  "fmt"

  "github.com/go-vgo/robotgo"
  "github.com/vcaesar/bitmap"
)

func main() {
  bit := robotgo.CaptureScreen(10, 20, 30, 40)
  // use `defer robotgo.FreeBitmap(bit)` to free the bitmap
  defer robotgo.FreeBitmap(bit)

  fmt.Println("bitmap...", bit)
  img := robotgo.ToImage(bit)
  // robotgo.SavePng(img, "test_1.png")
  robotgo.Save(img, "test_1.png")

  bit2 := robotgo.ToCBitmap(robotgo.ImgToBitmap(img))
  fx, fy := bitmap.Find(bit2)
  fmt.Println("FindBitmap------ ", fx, fy)
  robotgo.Move(fx, fy)

  arr := bitmap.FindAll(bit2)
  fmt.Println("Find all bitmap: ", arr)

  fx, fy = bitmap.Find(bit)
  fmt.Println("FindBitmap------ ", fx, fy)

  bitmap.Save(bit, "test.png")
}

OpenCV

package main

import (
  "fmt"
  "math/rand"

  "github.com/go-vgo/robotgo"
  "github.com/vcaesar/gcv"
  "github.com/vcaesar/bitmap"
)

func main() {
  opencv()
}

func opencv() {
  name := "test.png"
  name1 := "test_001.png"
  robotgo.SaveCapture(name1, 10, 10, 30, 30)
  robotgo.SaveCapture(name)

  fmt.Print("gcv find image: ")
  fmt.Println(gcv.FindImgFile(name1, name))
  fmt.Println(gcv.FindAllImgFile(name1, name))

  bit := bitmap.Open(name1)
  defer robotgo.FreeBitmap(bit)
  fmt.Print("find bitmap: ")
  fmt.Println(bitmap.Find(bit))

  // bit0 := robotgo.CaptureScreen()
  // img := robotgo.ToImage(bit0)
  // bit1 := robotgo.CaptureScreen(10, 10, 30, 30)
  // img1 := robotgo.ToImage(bit1)
  // defer robotgo.FreeBitmapArr(bit0, bit1)
  img, _ := robotgo.CaptureImg()
  img1, _ := robotgo.CaptureImg(10, 10, 30, 30)

  fmt.Print("gcv find image: ")
  fmt.Println(gcv.FindImg(img1, img))
  fmt.Println()

  res := gcv.FindAllImg(img1, img)
  fmt.Println(res[0].TopLeft.Y, res[0].Rects.TopLeft.X, res)
  x, y := res[0].TopLeft.X, res[0].TopLeft.Y
  robotgo.Move(x, y-rand.Intn(5))
  robotgo.MilliSleep(100)
  robotgo.Click()

  res = gcv.FindAll(img1, img) // use find template and sift
  fmt.Println("find all: ", res)
  res1 := gcv.Find(img1, img)
  fmt.Println("find: ", res1)

  img2, _, _ := robotgo.DecodeImg("test_001.png")
  x, y = gcv.FindX(img2, img)
  fmt.Println(x, y)
}

Event

package main

import (
  "fmt"

  // "github.com/go-vgo/robotgo"
  hook "github.com/robotn/gohook"
)

func main() {
  add()
  low()
  event()
}

func add() {
  fmt.Println("--- Please press ctrl + shift + q to stop hook ---")
  hook.Register(hook.KeyDown, []string{"q", "ctrl", "shift"}, func(e hook.Event) {
    fmt.Println("ctrl-shift-q")
    hook.End()
  })

  fmt.Println("--- Please press w---")
  hook.Register(hook.KeyDown, []string{"w"}, func(e hook.Event) {
    fmt.Println("w")
  })

  s := hook.Start()
  <-hook.Process(s)
}

func low() {
	evChan := hook.Start()
	defer hook.End()

	for ev := range evChan {
		fmt.Println("hook: ", ev)
	}
}

func event() {
  ok := hook.AddEvents("q", "ctrl", "shift")
  if ok {
    fmt.Println("add events...")
  }

  keve := hook.AddEvent("k")
  if keve {
    fmt.Println("you press... ", "k")
  }

  mleft := hook.AddEvent("mleft")
  if mleft {
    fmt.Println("you press... ", "mouse left button")
  }
}

Window

package main

import (
  "fmt"

  "github.com/go-vgo/robotgo"
)

func main() {
  fpid, err := robotgo.FindIds("Google")
  if err == nil {
    fmt.Println("pids... ", fpid)

    if len(fpid) > 0 {
      robotgo.Type("Hi galaxy!", fpid[0])
      robotgo.KeyTap("a", fpid[0], "cmd")

      robotgo.KeyToggle("a", fpid[0])
      robotgo.KeyToggle("a", fpid[0], "up")

      robotgo.ActivePid(fpid[0])

      robotgo.Kill(fpid[0])
    }
  }

  robotgo.ActiveName("chrome")

  isExist, err := robotgo.PidExists(100)
  if err == nil && isExist {
    fmt.Println("pid exists is", isExist)

    robotgo.Kill(100)
  }

  abool := robotgo.Alert("test", "robotgo")
  if abool {
 	  fmt.Println("ok@@@ ", "ok")
  }

  title := robotgo.GetTitle()
  fmt.Println("title@@@ ", title)
}

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