using gtk_widget_destroy instead of gtk_window_close for destory

example/pubspec.lock

@@ -1,6 +1,14 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: "4cab82a83ffef80b262ddedf47a0a8e56ee6fbf7fe21e6e768b02792034dd440"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.0"
   async:
     dependency: transitive
     description:
@@ -17,14 +25,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.1"
-  bot_toast:
-    dependency: "direct main"
+  build_config:
+    dependency: transitive
     description:
-      name: bot_toast
-      sha256: "19306147033316a7873c5d261b874fca3f341c05e4e1c12be56153ad11187edd"
+      name: build_config
+      sha256: bf80fcfb46a29945b423bd9aad884590fb1dc69b330a4d4700cac476af1708d1
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.3"
+    version: "1.1.1"
   characters:
     dependency: transitive
     description:
@@ -33,6 +41,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.0"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      sha256: "3d1505d91afa809d177efd4eed5bb0eb65805097a1463abdd2add076effae311"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.2"
   clock:
     dependency: transitive
     description:
@@ -49,14 +65,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.17.1"
-  cupertino_icons:
-    dependency: "direct main"
+  dependency_validator:
+    dependency: "direct dev"
     description:
-      name: cupertino_icons
-      sha256: e35129dc44c9118cee2a5603506d823bab99c68393879edb440e0090d07586be
+      name: dependency_validator
+      sha256: "08349175533ed0bd06eb9b6043cde66c45b2bfc7ebc222a7542cdb1324f1bf03"
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.5"
+    version: "3.2.2"
   fake_async:
     dependency: transitive
     description:
@@ -78,11 +94,6 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
-  flutter_driver:
-    dependency: transitive
-    description: flutter
-    source: sdk
-    version: "0.0.0"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -96,16 +107,22 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
-  fuchsia_remote_debug_protocol:
+  glob:
     dependency: transitive
-    description: flutter
-    source: sdk
-    version: "0.0.0"
-  integration_test:
-    dependency: "direct dev"
-    description: flutter
-    source: sdk
-    version: "0.0.0"
+    description:
+      name: glob
+      sha256: "4515b5b6ddb505ebdd242a5f2cc5d22d3d6a80013789debfbda7777f47ea308c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      sha256: "2ec25704aba361659e10e3e5f5d672068d332fc8ac516421d483a11e5cbd061e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.4"
   js:
     dependency: transitive
     description:
@@ -114,6 +131,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.6.7"
+  json_annotation:
+    dependency: transitive
+    description:
+      name: json_annotation
+      sha256: c33da08e136c3df0190bd5bbe51ae1df4a7d96e7954d1d7249fea2968a72d317
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.8.0"
   lints:
     dependency: transitive
     description:
@@ -122,6 +147,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.1"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: "04094f2eb032cbb06c6f6e8d3607edcfcb0455e2bb6cbc010cb01171dcb64e6d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
   matcher:
     dependency: transitive
     description:
@@ -138,14 +171,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.2.0"
-  menu_base:
-    dependency: transitive
-    description:
-      name: menu_base
-      sha256: "820368014a171bd1241030278e6c2617354f492f5c703d7b7d4570a6b8b84405"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.1.1"
   meta:
     dependency: transitive
     description:
@@ -154,54 +179,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
-  path:
+  package_config:
     dependency: transitive
+    description:
+      name: package_config
+      sha256: "1c5b77ccc91e4823a5af61ee74e6b972db1ef98c2ff5a18d3161c982a55448bd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
+  path:
+    dependency: "direct main"
     description:
       name: path
       sha256: "8829d8a55c13fc0e37127c29fedf290c102f4e40ae94ada574091fe0ff96c917"
       url: "https://pub.dev"
     source: hosted
     version: "1.8.3"
-  platform:
+  pub_semver:
     dependency: transitive
     description:
-      name: platform
-      sha256: "4a451831508d7d6ca779f7ac6e212b4023dd5a7d08a27a63da33756410e32b76"
+      name: pub_semver
+      sha256: "307de764d305289ff24ad257ad5c5793ce56d04947599ad68b3baa124105fc17"
       url: "https://pub.dev"
     source: hosted
-    version: "3.1.0"
-  preference_list:
-    dependency: "direct main"
-    description:
-      name: preference_list
-      sha256: d3419b2ec57a6ad2156bd682a46cf3194bf162b36bb013790c7b29e6438f107a
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.0.1"
-  process:
+    version: "2.1.3"
+  pubspec_parse:
     dependency: transitive
     description:
-      name: process
-      sha256: "53fd8db9cec1d37b0574e12f07520d582019cb6c44abf5479a01505099a34a09"
+      name: pubspec_parse
+      sha256: "75f6614d6dde2dc68948dffbaa4fe5dae32cd700eb9fb763fe11dfb45a3c4d0a"
       url: "https://pub.dev"
     source: hosted
-    version: "4.2.4"
+    version: "1.2.1"
   screen_retriever:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: screen_retriever
       sha256: "4931f226ca158123ccd765325e9fbf360bfed0af9b460a10f960f9bb13d58323"
       url: "https://pub.dev"
     source: hosted
     version: "0.1.6"
-  shortid:
-    dependency: transitive
-    description:
-      name: shortid
-      sha256: d0b40e3dbb50497dad107e19c54ca7de0d1a274eb9b4404991e443dadb9ebedb
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.1.2"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -239,14 +256,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.0"
-  sync_http:
-    dependency: transitive
-    description:
-      name: sync_http
-      sha256: "7f0cd72eca000d2e026bcd6f990b81d0ca06022ef4e32fb257b30d3d1014a961"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.3.1"
   term_glyph:
     dependency: transitive
     description:
@@ -263,14 +272,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.5.1"
-  tray_manager:
-    dependency: "direct main"
-    description:
-      name: tray_manager
-      sha256: b1975a05e0c6999e983cf9a58a6a098318c896040ccebac5398a3cc9e43b9c69
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.2.0"
   vector_math:
     dependency: transitive
     description:
@@ -279,29 +280,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.4"
-  vm_service:
+  yaml:
     dependency: transitive
     description:
-      name: vm_service
-      sha256: f6deed8ed625c52864792459709183da231ebf66ff0cf09e69b573227c377efe
+      name: yaml
+      sha256: "23812a9b125b48d4007117254bca50abb6c712352927eece9e155207b1db2370"
       url: "https://pub.dev"
     source: hosted
-    version: "11.3.0"
-  webdriver:
-    dependency: transitive
-    description:
-      name: webdriver
-      sha256: "3c923e918918feeb90c4c9fdf1fe39220fa4c0e8e2c0fffaded174498ef86c49"
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.0.2"
-  window_manager:
-    dependency: "direct main"
-    description:
-      path: ".."
-      relative: true
-    source: path
-    version: "0.3.2"
+    version: "3.1.1"
 sdks:
   dart: ">=3.0.0-0 <4.0.0"
-  flutter: ">=2.5.0"
+  flutter: ">=2.5.0"

linux/window_manager_plugin.cc

@@ -50,8 +50,7 @@ static FlMethodResponse* set_as_frameless(WindowManagerPlugin* self,
 }
 
 static FlMethodResponse* destroy(WindowManagerPlugin* self) {
-  self->_is_prevent_close = false;
-  gtk_window_close(get_window(self));
+  gtk_widget_destroy(GTK_WIDGET(get_window(self)));
   return FL_METHOD_RESPONSE(
       fl_method_success_response_new(fl_value_new_bool(true)));
 }