[Flutter] Prevent screen shot and screen record in MacOs and Windows - Flutter Desktop App

your_flutter_project/macos/Runner/AppDelegate.swift

`import Cocoa
import FlutterMacOS

@NSApplicationMain
class AppDelegate: FlutterAppDelegate {

override func applicationDidFinishLaunching(_ aNotification: Notification) {
let controller: FlutterViewController = mainFlutterWindow?.contentViewController as! FlutterViewController
let screenshotBlockerChannel = FlutterMethodChannel(name: "screenshot_blocker", binaryMessenger: controller.engine.binaryMessenger)

screenshotBlockerChannel.setMethodCallHandler { (call: FlutterMethodCall, result: @escaping FlutterResult) in
if call.method == "disableScreenshots" {
self.disableScreenshots(result: result)
} else if call.method == "enableScreenshots" {
self.enableScreenshots(result: result)
} else {
result(FlutterMethodNotImplemented)
}
}

super.applicationDidFinishLaunching(aNotification)
}

// Disable Screenshots Logic
private func disableScreenshots(result: FlutterResult) {
if let window = mainFlutterWindow {
// Setting the security level for the window
window.sharingType = .none // Disable window sharing (prevents some forms of screen capture)
result(true)
} else {
result(FlutterError(code: "UNAVAILABLE", message: "Window not available", details: nil))
}
}

// Enable Screenshots Logic (restore default behavior)
private func enableScreenshots(result: FlutterResult) {
if let window = mainFlutterWindow {
// Restore window sharing behavior
window.sharingType = .readWrite
result(true)
} else {
result(FlutterError(code: "UNAVAILABLE", message: "Window not available", details: nil))
}
}
}


`

import 'package:flutter/services.dart';
class ScreenshotBlocker {
static const MethodChannel _channel = MethodChannel('screenshot_blocker');
// Method to disable screenshots
static Future<void> disableScreenshots() async {
try {
await _channel.invokeMethod('disableScreenshots');
} on PlatformException catch (e) {
print("Failed to disable screenshots: '${e.message}'.");
}
}
// Method to enable screenshots (undo prevention)
static Future<void> enableScreenshots() async {
try {
await _channel.invokeMethod('enableScreenshots');
} on PlatformException catch (e) {
print("Failed to enable screenshots: '${e.message}'.");
}
}
}


@override
void initState() {
super.initState();

// To disable screenshots
ScreenshotBlocker.disableScreenshots();

}


Where should I prevent both screenshots and screen recording? Currently, screenshot prevention is working fine, but I also need to restrict screen recording on macOS and Windows desktop apps. The code provided is for macOS. If you have any solution for Windows as well, please share it for both platforms.

Thanks in Advance!!

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