feat: Implement window and full-screen screenshotting on Windows

  This commit introduces significant new features and refactors the existing codebase.

   - Window-specific Screenshots: Users can now select a specific window to capture.
   - Enhanced Full-screen Capture: The full-screen screenshot functionality is improved with better multi-display handling.
   - Configuration System: A JSON configuration file is now used to manage settings, such as the save location. An option to open the config file is available via the --config flag.
   - FFmpeg Downloader: Prepares for future video recording functionality by adding a utility to prompt for and download FFmpeg.
   - Windows Toast Notifications: The application now displays a system notification when a screenshot is saved, with a button to open the file directly.
   - Code Refactoring: The project has been restructured with the addition of utils.go and a significant overhaul of dependencies, replacing the previous screenshot library with robotgo.
   - Project Rename: The Go module is renamed from go-screen-cli to captr.

Author: ServerDeveloper9447

go.mod

@@ -1,27 +1,35 @@
-module go-screen-cli
+module captr
 
 go 1.24.5
 
 require (
-	github.com/AllenDang/w32 v0.0.0-20180428130237-ad0a36d80adc // indirect
-	github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e // indirect
-	github.com/dblohm7/wingoes v0.0.0-20240820181039-f2b84150679e // indirect
-	github.com/ebitengine/purego v0.8.3 // indirect
+	github.com/JamesHovious/w32 v1.2.0
+	github.com/go-toast/toast v0.0.0-20190211030409-01e6764cf0a4
+	github.com/go-vgo/robotgo v0.110.8
+	github.com/manifoldco/promptui v0.9.0
+	github.com/schollz/progressbar/v3 v3.18.0
+	github.com/tailscale/win v0.0.0-20250627215312-f4da2b8ee071
+	golang.design/x/clipboard v0.7.1
+)
+
+require (
+	github.com/chzyer/readline v1.5.1 // indirect
+	github.com/dblohm7/wingoes v0.0.0-20250611174154-e3e096948d18 // indirect
+	github.com/ebitengine/purego v0.8.4 // indirect
 	github.com/gen2brain/shm v0.1.1 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
-	github.com/go-vgo/robotgo v0.110.8 // indirect
 	github.com/godbus/dbus/v5 v5.1.0 // indirect
 	github.com/jezek/xgb v1.1.1 // indirect
-	github.com/kbinani/screenshot v0.0.0-20250624051815-089614a94018 // indirect
 	github.com/lufia/plan9stats v0.0.0-20250317134145-8bc96cf8fc35 // indirect
-	github.com/lxn/win v0.0.0-20210218163916-a377121e959e // indirect
-	github.com/manifoldco/promptui v0.9.0 // indirect
+	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
+	github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d // indirect
 	github.com/otiai10/gosseract v2.2.1+incompatible // indirect
+	github.com/otiai10/mint v1.6.3 // indirect
 	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/robotn/xgb v0.10.0 // indirect
 	github.com/robotn/xgbutil v0.10.0 // indirect
-	github.com/shirou/gopsutil/v4 v4.25.4 // indirect
-	github.com/tailscale/win v0.0.0-20250213223159-5992cb43ca35 // indirect
+	github.com/shirou/gopsutil/v4 v4.25.7 // indirect
 	github.com/tklauser/go-sysconf v0.3.15 // indirect
 	github.com/tklauser/numcpus v0.10.0 // indirect
 	github.com/vcaesar/gops v0.41.0 // indirect
@@ -30,7 +38,11 @@ require (
 	github.com/vcaesar/screenshot v0.11.1 // indirect
 	github.com/vcaesar/tt v0.20.1 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
-	golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6 // indirect
-	golang.org/x/image v0.27.0 // indirect
-	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/exp v0.0.0-20250718183923-645b1fa84792 // indirect
+	golang.org/x/exp/shiny v0.0.0-20250606033433-dcc06ee1d476 // indirect
+	golang.org/x/image v0.29.0 // indirect
+	golang.org/x/mobile v0.0.0-20250606033058-a2a15c67f36f // indirect
+	golang.org/x/net v0.42.0 // indirect
+	golang.org/x/sys v0.34.0 // indirect
+	golang.org/x/term v0.33.0 // indirect
 )

go.sum

@@ -1,47 +1,76 @@
-github.com/AllenDang/w32 v0.0.0-20180428130237-ad0a36d80adc h1:w3fW4b1hPf6/cfdQQ/vu9V8eBeQmuLZIaUMj81nIzYQ=
-github.com/AllenDang/w32 v0.0.0-20180428130237-ad0a36d80adc/go.mod h1:1rHKulT5eD2DzdKxDXUZRKtBfkTzLmTL42ZmEmOfyrs=
 github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298/go.mod h1:D+QujdIlUNfa0igpNMk6UIvlb6C252URs4yupRUV4lQ=
 github.com/BurntSushi/graphics-go v0.0.0-20160129215708-b43f31a4a966/go.mod h1:Mid70uvE93zn9wgF92A/r5ixgnvX8Lh68fxp9KQBaI0=
+github.com/JamesHovious/w32 v1.2.0 h1:UZWv2ea6y4Kylzs7DGXWcSCaUH+OxH8q7aCFmMUqwao=
+github.com/JamesHovious/w32 v1.2.0/go.mod h1:L6LTHMKvhtpGUkIYGTo4U9PKancYKpGS/+naYtTs8Ys=
+github.com/chengxilo/virtualterm v1.0.4 h1:Z6IpERbRVlfB8WkOmtbHiDbBANU7cimRIof7mk9/PwM=
+github.com/chengxilo/virtualterm v1.0.4/go.mod h1:DyxxBZz/x1iqJjFxTFcr6/x+jSpqN0iwWCOK1q10rlY=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e h1:fY5BOSpyZCqRo5OhCuC+XN+r/bBCmeuuJtjz+bCNIf8=
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-github.com/ebitengine/purego v0.8.3 h1:K+0AjQp63JEZTEMZiwsI9g0+hAMNohwUOtY0RPGexmc=
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+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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 github.com/gen2brain/shm v0.1.1 h1:1cTVA5qcsUFixnDHl14TmRoxgfWEEZlTezpUj1vm5uQ=
 github.com/gen2brain/shm v0.1.1/go.mod h1:UgIcVtvmOu+aCJpqJX7GOtiN7X2ct+TKLg4RTxwPIUA=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
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-github.com/kbinani/screenshot v0.0.0-20250624051815-089614a94018 h1:NQYgMY188uWrS+E/7xMVpydsI48PMHcc7SfR4OxkDF4=
-github.com/kbinani/screenshot v0.0.0-20250624051815-089614a94018/go.mod h1:Pmpz2BLf55auQZ67u3rvyI2vAQvNetkK/4zYUmpauZQ=
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 github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE=
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-github.com/tailscale/win v0.0.0-20250213223159-5992cb43ca35/go.mod h1:aMd4yDHLjbOuYP6fMxj1d9ACDQlSWwYztcpybGHCQc8=
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+github.com/tailscale/win v0.0.0-20250627215312-f4da2b8ee071/go.mod h1:aMd4yDHLjbOuYP6fMxj1d9ACDQlSWwYztcpybGHCQc8=
+github.com/tc-hib/winres v0.2.1 h1:YDE0FiP0VmtRaDn7+aaChp1KiF4owBiJa5l964l5ujA=
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 github.com/tklauser/go-sysconf v0.3.15 h1:VE89k0criAymJ/Os65CSn1IXaol+1wrsFHEB8Ol49K4=
 github.com/tklauser/go-sysconf v0.3.15/go.mod h1:Dmjwr6tYFIseJw7a3dRLJfsHAMXZ3nEnL/aZY+0IuI4=
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@@ -58,14 +87,26 @@ github.com/vcaesar/tt v0.20.1 h1:D/jUeeVCNbq3ad8M7hhtB3J9x5RZ6I1n1eZ0BJp7M+4=
 github.com/vcaesar/tt v0.20.1/go.mod h1:cH2+AwGAJm19Wa6xvEa+0r+sXDJBT0QgNQey6mwqLeU=
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 github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
-golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6 h1:y5zboxd6LQAqYIhHnB48p0ByQ/GnQx2BE33L8BOHQkI=
-golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6/go.mod h1:U6Lno4MTRCDY+Ba7aCcauB9T60gsv5s4ralQzP72ZoQ=
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-golang.org/x/image v0.27.0/go.mod h1:xbdrClrAUway1MUTEZDq9mz/UpRwYAkFFNUslZtcB+g=
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+golang.design/x/clipboard v0.7.1/go.mod h1:i5SiIqj0wLFw9P/1D7vfILFK0KHMk7ydE72HRrUIgkg=
+golang.org/x/exp v0.0.0-20250718183923-645b1fa84792 h1:R9PFI6EUdfVKgwKjZef7QIwGcBKu86OEFpJ9nUEP2l4=
+golang.org/x/exp v0.0.0-20250718183923-645b1fa84792/go.mod h1:A+z0yzpGtvnG90cToK5n2tu8UJVP2XUATh+r+sfOOOc=
+golang.org/x/exp/shiny v0.0.0-20250606033433-dcc06ee1d476 h1:Wdx0vgH5Wgsw+lF//LJKmWOJBLWX6nprsMqnf99rYDE=
+golang.org/x/exp/shiny v0.0.0-20250606033433-dcc06ee1d476/go.mod h1:ygj7T6vSGhhm/9yTpOQQNvuAUFziTH7RUiH74EoE2C8=
+golang.org/x/image v0.29.0 h1:HcdsyR4Gsuys/Axh0rDEmlBmB68rW1U9BUdB3UVHsas=
+golang.org/x/image v0.29.0/go.mod h1:RVJROnf3SLK8d26OW91j4FrIHGbsJ8QnbEocVTOWQDA=
+golang.org/x/mobile v0.0.0-20250606033058-a2a15c67f36f h1:/n+PL2HlfqeSiDCuhdBbRNlGS/g2fM4OHufalHaTVG8=
+golang.org/x/mobile v0.0.0-20250606033058-a2a15c67f36f/go.mod h1:ESkJ836Z6LpG6mTVAhA48LpfW/8fNR0ifStlH2axyfg=
+golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
+golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
 golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201018230417-eeed37f84f13/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
-golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
+golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/term v0.33.0 h1:NuFncQrRcaRvVmgRkvM3j/F00gWIAlcmlB8ACEKmGIg=
+golang.org/x/term v0.33.0/go.mod h1:s18+ql9tYWp1IfpV9DmCtQDDSRBUjKaw9M1eAv5UeF0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -1,16 +1,185 @@
 package main
 
 import (
+	"archive/zip"
+	"encoding/json"
+	"flag"
 	"fmt"
-	"image/png"
+	"io"
+	"net/http"
 	"os"
-	"time"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
 
 	"github.com/manifoldco/promptui"
-	"github.com/vcaesar/screenshot"
+	"github.com/schollz/progressbar/v3"
 )
 
+var (
+	config         Config
+	appdataDir     string
+	configFilePath string
+)
+
+func extractFFmpegExe(zipPath, destDir string) error {
+	r, err := zip.OpenReader(zipPath)
+	if err != nil {
+		return err
+	}
+	defer r.Close()
+
+	for _, f := range r.File {
+		if strings.HasSuffix(f.Name, "bin/ffmpeg.exe") || strings.HasSuffix(f.Name, "bin\\ffmpeg.exe") {
+			rc, err := f.Open()
+			if err != nil {
+				return err
+			}
+			defer rc.Close()
+
+			os.MkdirAll(destDir, 0755)
+			outPath := filepath.Join(destDir, "ffmpeg.exe")
+			outFile, err := os.Create(outPath)
+			if err != nil {
+				return err
+			}
+			defer outFile.Close()
+
+			_, err = io.Copy(outFile, rc)
+			return err
+		}
+	}
+
+	return os.ErrNotExist
+}
+
+type Config struct {
+	SaveLocation string `json:"save_location"`
+	RecordFunc   bool   `json:"record_func_enabled"`
+}
 
+func setConfig(key string, value any) {
+	data := make(map[string]any)
+	content, err := os.ReadFile(configFilePath)
+	if err == nil {
+		_ = json.Unmarshal(content, &data)
+	}
+
+	data[key] = value
+
+	updData, err := json.MarshalIndent(data, "", "  ")
+	if err != nil {
+		panic(err)
+	}
+	os.WriteFile(configFilePath, updData, 0644)
+	initConfig()
+}
+
+func initConfig() {
+	var err error
+	appdataDir, err = os.UserConfigDir()
+	if err != nil {
+		panic(err)
+	}
+	appdataDir = filepath.Join(appdataDir, "captr")
+	configFilePath = filepath.Join(appdataDir, ".captr_config.json")
+	if _, err := os.Stat(configFilePath); os.IsNotExist(err) {
+		home, _ := os.UserHomeDir()
+		config = Config{
+			SaveLocation: filepath.Join(home, "Desktop"),
+			RecordFunc:   true,
+		}
+		data, err := json.MarshalIndent(config, "", "  ")
+		if err != nil {
+			panic(err)
+		}
+		os.Mkdir(appdataDir, 0755)
+		os.WriteFile(configFilePath, data, 0644)
+	} else {
+		data, err := os.ReadFile(configFilePath)
+		if err != nil {
+			panic(err)
+		}
+		if err := json.Unmarshal(data, &config); err != nil {
+			panic(err)
+		}
+	}
+}
+
+func initDownloads() {
+	dwnPath := filepath.Join(appdataDir, "bin")
+	if _, err := os.Stat(filepath.Join(dwnPath, "ffmpeg.exe")); err == nil {
+		return
+	}
+	if !config.RecordFunc {
+		return
+	}
+	cmd := exec.Command("ffmpeg", "-version")
+	if err := cmd.Run(); err == nil {
+		return
+	}
+	fmt.Println("Captr requires ffmpeg to record videos. However, the screenshotting functionality is not affected.")
+	prompt := promptui.Select{
+		Label: "Choose your action",
+		Items: []string{
+			"Download ffmpeg (Download size: ~148MB, Install size: ~132MB)",
+			"Keep only screenshotting functionality",
+		},
+	}
+	i, _, err := prompt.Run()
+	if err != nil {
+		fmt.Println("Action Cancelled")
+		os.Exit(1)
+	}
+	if i == 0 {
+		resp, err := http.Get("https://github.com/BtbN/FFmpeg-Builds/releases/download/latest/ffmpeg-n7.1-latest-win64-gpl-7.1.zip")
+		if err != nil {
+			fmt.Println("Couldn't download ffmpeg")
+			os.Exit(1)
+		}
+		defer resp.Body.Close()
+		bar := progressbar.DefaultBytes(
+			resp.ContentLength,
+			"Downloading ffmpeg",
+		)
+
+		out, err := os.Create(filepath.Join(os.TempDir(), "ffmpeg_captr.zip"))
+		if err != nil {
+			fmt.Println("Couldn't download ffmpeg")
+			os.Exit(1)
+		}
+		defer out.Close()
+
+		_, err = io.Copy(io.MultiWriter(out, bar), resp.Body)
+		if err != nil {
+			fmt.Printf("Couldn't download ffmpeg.")
+			os.Exit(1)
+		}
+		extractFFmpegExe(filepath.Join(os.TempDir(), "ffmpeg_captr.zip"), dwnPath)
+		fmt.Printf("FFMPEG has been downloaded to %s", dwnPath)
+	} else {
+		setConfig("record_func_enabled", false)
+	}
+}
+
+func init() {
+	if !(runtime.GOOS == "windows" && runtime.GOARCH == "amd64") {
+		panic("Captr is only supported on Windows x64")
+	}
+	initConfig()
+	configMode := flag.Bool("config", false, "Configure Captr")
+	flag.Parse()
+	if *configMode {
+		cmd := exec.Command("notepad.exe", configFilePath)
+		if err := cmd.Start(); err != nil {
+			fmt.Println("Error starting command:", err)
+			return
+		}
+		os.Exit(0)
+	}
+	initDownloads()
+}
 
 func main() {
 	fmt.Println(`
@@ -25,7 +194,7 @@ ________/\\\\\\\\\__________________________________________________________
         _______\/////////___\////////\//__\///______________\/////____\///__________
 
 	`)
-
+	fmt.Println("Open config file by passing the --config flag")
 	capture_ops := []string{"Record full screen", "Record specific window", "Screenshot specific window", "Screenshot full screen"}
 	prompt := promptui.Select{
 		Label:        "Select Action",
@@ -38,8 +207,10 @@ ________/\\\\\\\\\__________________________________________________________
 		fmt.Print("Action Cancelled.")
 		return
 	}
-	
+
 	switch i {
+	case 2:
+		Screenshot_Window()
 	case 3:
 		Screenshot_Display()
 	}