diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 43199b95..b7929c6f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -10,14 +10,14 @@ jobs:
   build:
     runs-on: ubuntu-latest
     container:
-      image: ubuntu:20.04
+      image: ubuntu:latest
     strategy:
       matrix:
         rust:
           - stable
           - beta
           - nightly
-          - "1.65.0"
+          - "1.70"
     env:
         DISPLAY: ":99.0"
         # Workaround to avoid getting stuck by apt about choosing a timezone.
diff --git a/Cargo.toml b/Cargo.toml
index b49cf4c9..c14b8550 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,14 +12,14 @@ version = "0.24.1"
 edition = "2018"
 
 [dependencies]
-cairo-rs = "0.16.1"
+cairo-rs = "0.18"
 fragile = "2.0"
-glib = "0.16.2"
-glib-sys = "0.16.0"
-gobject-sys = "0.16.0"
-gtk = "0.16.1"
-libc = "^0.2.54"
-log = "^0.4.6"
+glib = "0.18"
+glib-sys = "0.18"
+gobject-sys = "0.18"
+gtk = "0.18"
+libc = "0.2.54"
+log = "0.4.6"
 
 [features]
 hidpi = []
diff --git a/relm-derive/src/gen/generator.rs b/relm-derive/src/gen/generator.rs
index dcc4c92c..c0d5522b 100644
--- a/relm-derive/src/gen/generator.rs
+++ b/relm-derive/src/gen/generator.rs
@@ -519,17 +519,17 @@ impl<'a> Generator<'a> {
 fn gen_construct_widget(widget: &Widget, gtk_widget: &GtkWidget) -> TokenStream {
     let struct_name = &widget.typ;
 
-    let mut parameters = vec![];
-    for (key, value) in gtk_widget.construct_properties.iter() {
-        let key = key.to_string().replace("_", "-");
-        let mut remover = Transformer::new(MODEL_IDENT);
-        let value = remover.fold_expr(value.clone());
-        parameters.push(quote_spanned! { struct_name.span() =>
-            (#key, &#value as &dyn ::gtk::glib::value::ToValue)
-        });
-    }
-
     if widget.init_parameters.is_empty() {
+        let mut keys = Vec::new();
+        let mut values = Vec::new();
+        for (k, v) in &gtk_widget.construct_properties {
+            let k = k.to_string().replace("_", "-");
+            let mut remover = Transformer::new(MODEL_IDENT);
+            let v = remover.fold_expr(v.clone());
+            keys.push(k);
+            values.push(v);
+        }
+
         quote_spanned!(struct_name.span() => {
             if !gtk::is_initialized_main_thread() {
                 if gtk::is_initialized() {
@@ -539,9 +539,9 @@ fn gen_construct_widget(widget: &Widget, gtk_widget: &GtkWidget) -> TokenStream
                     panic!("GTK has not been initialized. Call `gtk::init` first.");
                 }
             }
-            let parameters = [#(#parameters),*];
-            // TODO: switch to builders.
-            ::gtk::glib::object::Object::new::<#struct_name>(&parameters)
+            ::gtk::glib::object::Object::builder::<'_, #struct_name>()
+                #(.property(#keys, &#values))*
+                .build()
         })
     }
     else {
diff --git a/relm-examples/Cargo.toml b/relm-examples/Cargo.toml
index 12b00ebf..96f65ac1 100644
--- a/relm-examples/Cargo.toml
+++ b/relm-examples/Cargo.toml
@@ -9,14 +9,14 @@ edition = "2018"
 
 [dev-dependencies]
 chrono = "0.4"
-gdk = "^0.16.0"
-glib = "^0.16.0"
-gtk = "^0.16.0"
-gtk-test = "^0.16.0"
+gdk = "0.18"
+glib = "0.18"
+gtk = "0.18"
+gtk-test = "0.18"
 rand = "0.8.5"
 
 [dev-dependencies.gio]
-version = "^0.16.0"
+version = "0.18"
 
 [dev-dependencies.relm]
 path = ".."
diff --git a/relm-examples/examples/7gui/1_counter/Cargo.toml b/relm-examples/examples/7gui/1_counter/Cargo.toml
index e4b6d975..42647bff 100644
--- a/relm-examples/examples/7gui/1_counter/Cargo.toml
+++ b/relm-examples/examples/7gui/1_counter/Cargo.toml
@@ -5,12 +5,13 @@ authors = ["Julian Schmidhuber <schmidhuberj2@protonmail.com>"]
 edition = "2018"
 
 [dependencies]
-glib = "^0.16.0"
-gtk = "^0.16.0"
+glib = "0.18"
+gtk = "0.18"
 
 [dependencies.gio]
 features = ["v2_58"]
-version = "^0.16.0"
+version = "0.18"
+
 [dependencies.relm]
 path = "../../../.."
 
diff --git a/relm-examples/examples/7gui/1_counter/src/main.rs b/relm-examples/examples/7gui/1_counter/src/main.rs
index 8b468b22..ef379016 100644
--- a/relm-examples/examples/7gui/1_counter/src/main.rs
+++ b/relm-examples/examples/7gui/1_counter/src/main.rs
@@ -1,3 +1,4 @@
+use glib::Propagation;
 use gtk::prelude::*;
 use relm::Widget;
 use relm_derive::{widget, Msg};
@@ -53,7 +54,7 @@ impl Widget for Win {
                     clicked => Msg::Increment
                 }
             },
-            delete_event(_, _) => (Msg::Quit, Inhibit(false)),
+            delete_event(_, _) => (Msg::Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/7gui/2_temperature_converter/Cargo.toml b/relm-examples/examples/7gui/2_temperature_converter/Cargo.toml
index 1ae44405..0d5df895 100644
--- a/relm-examples/examples/7gui/2_temperature_converter/Cargo.toml
+++ b/relm-examples/examples/7gui/2_temperature_converter/Cargo.toml
@@ -5,12 +5,13 @@ authors = ["Julian Schmidhuber <schmidhuberj2@protonmail.com>"]
 edition = "2018"
 
 [dependencies]
-glib = "^0.16.0"
-gtk = "^0.16.0"
+glib = "0.18"
+gtk = "0.18"
 
 [dependencies.gio]
 features = ["v2_58"]
-version = "^0.16.0"
+version = "0.18"
+
 [dependencies.relm]
 path = "../../../.."
 
diff --git a/relm-examples/examples/7gui/2_temperature_converter/src/main.rs b/relm-examples/examples/7gui/2_temperature_converter/src/main.rs
index 0bd466b6..d5fae73e 100644
--- a/relm-examples/examples/7gui/2_temperature_converter/src/main.rs
+++ b/relm-examples/examples/7gui/2_temperature_converter/src/main.rs
@@ -1,3 +1,4 @@
+use glib::Propagation;
 use gtk::prelude::*;
 use relm::{Relm, Widget};
 use relm_derive::{widget, Msg};
@@ -85,7 +86,7 @@ impl Widget for Win {
                         let text = entry.text().to_string();
                         Msg::ChangedCelsius(text)
 
-                    }, Inhibit(false)),
+                    }, Propagation::Proceed),
                     text: &self.model.temp_celsius,
                 },
                 // The label only showing text.
@@ -107,7 +108,7 @@ impl Widget for Win {
                         let text = entry.text().to_string();
                         Msg::ChangedFahrenheit(text)
 
-                    }, Inhibit(false)),
+                    }, Propagation::Proceed),
                     text: &self.model.temp_fahrenheit,
                 },
                 // The label showing the text.
@@ -115,7 +116,7 @@ impl Widget for Win {
                     label: "Fahrenheit"
                 },
             },
-            delete_event(_, _) => (Msg::Quit, Inhibit(false)),
+            delete_event(_, _) => (Msg::Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/7gui/3_flight_booker/Cargo.toml b/relm-examples/examples/7gui/3_flight_booker/Cargo.toml
index 61f04c7a..a1113a78 100644
--- a/relm-examples/examples/7gui/3_flight_booker/Cargo.toml
+++ b/relm-examples/examples/7gui/3_flight_booker/Cargo.toml
@@ -5,14 +5,15 @@ authors = ["Julian Schmidhuber <schmidhuberj2@protonmail.com>"]
 edition = "2018"
 
 [dependencies]
-glib = "0.16.0"
-gtk = "^0.16.0"
+glib = "0.18"
+gtk = "0.18"
 chrono = "0.4.19"
-gdk = "^0.16.0"
+gdk = "0.18"
 
 [dependencies.gio]
 features = ["v2_58"]
-version = "^0.16.0"
+version = "0.18"
+
 [dependencies.relm]
 path = "../../../.."
 
diff --git a/relm-examples/examples/7gui/3_flight_booker/src/main.rs b/relm-examples/examples/7gui/3_flight_booker/src/main.rs
index f32dcd33..a65b3c2f 100644
--- a/relm-examples/examples/7gui/3_flight_booker/src/main.rs
+++ b/relm-examples/examples/7gui/3_flight_booker/src/main.rs
@@ -1,6 +1,7 @@
 use std::convert::TryFrom;
 
 use chrono::NaiveDate;
+use glib::Propagation;
 use gtk::prelude::*;
 use gtk::{ButtonsType, DialogFlags, MessageDialog, MessageType};
 use relm::Widget;
@@ -234,7 +235,7 @@ impl Widget for Win {
                     clicked => Msg::Book,
                 }
             },
-            delete_event(_, _) => (Msg::Quit, Inhibit(false)),
+            delete_event(_, _) => (Msg::Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/7gui/4_progress_bar/Cargo.toml b/relm-examples/examples/7gui/4_progress_bar/Cargo.toml
index 560c7288..08b9ac69 100644
--- a/relm-examples/examples/7gui/4_progress_bar/Cargo.toml
+++ b/relm-examples/examples/7gui/4_progress_bar/Cargo.toml
@@ -5,12 +5,13 @@ authors = ["Julian Schmidhuber <schmidhuberj2@protonmail.com>"]
 edition = "2018"
 
 [dependencies]
-glib = "^0.16.0"
-gtk = "^0.16.0"
+glib = "0.18"
+gtk = "0.18"
 
 [dependencies.gio]
 features = ["v2_58"]
-version = "^0.16.0"
+version = "0.18"
+
 [dependencies.relm]
 path = "../../../.."
 
diff --git a/relm-examples/examples/7gui/4_progress_bar/src/main.rs b/relm-examples/examples/7gui/4_progress_bar/src/main.rs
index 9d6f8fae..5c4d4a33 100644
--- a/relm-examples/examples/7gui/4_progress_bar/src/main.rs
+++ b/relm-examples/examples/7gui/4_progress_bar/src/main.rs
@@ -1,3 +1,4 @@
+use glib::Propagation;
 use gtk::prelude::*;
 use gtk::Adjustment;
 use relm::{Relm, StreamHandle, Widget};
@@ -178,7 +179,7 @@ impl Widget for Win {
                     label: "Reset"
                 }
             },
-            delete_event(_, _) => (Msg::Quit, Inhibit(false)),
+            delete_event(_, _) => (Msg::Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/7gui/5_crud/Cargo.toml b/relm-examples/examples/7gui/5_crud/Cargo.toml
index 51ede0b3..be635e11 100644
--- a/relm-examples/examples/7gui/5_crud/Cargo.toml
+++ b/relm-examples/examples/7gui/5_crud/Cargo.toml
@@ -5,12 +5,13 @@ authors = ["Julian Schmidhuber <schmidhuberj2@protonmail.com>"]
 edition = "2018"
 
 [dependencies]
-glib = "^0.16.0"
-gtk = "^0.16.0"
+glib = "0.18"
+gtk = "0.18"
 
 [dependencies.gio]
 features = ["v2_58"]
-version = "^0.16.0"
+version = "0.18"
+
 [dependencies.relm]
 path = "../../../.."
 
diff --git a/relm-examples/examples/7gui/5_crud/src/gui/win.rs b/relm-examples/examples/7gui/5_crud/src/gui/win.rs
index 8f6d77c9..07608858 100644
--- a/relm-examples/examples/7gui/5_crud/src/gui/win.rs
+++ b/relm-examples/examples/7gui/5_crud/src/gui/win.rs
@@ -1,6 +1,7 @@
 use crate::gui::person_list_box::{PersonListBox, PersonListBoxMsg};
 use crate::model::Person;
 
+use glib::Propagation;
 use gtk::prelude::*;
 use gtk::Orientation;
 use relm::{Relm, StreamHandle, Widget};
@@ -132,7 +133,7 @@ impl Widget for Win {
                     },
                 }
             },
-            delete_event(_, _) => (WinMsg::Quit, Inhibit(false)),
+            delete_event(_, _) => (WinMsg::Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/7gui/6_circle_drawer/Cargo.toml b/relm-examples/examples/7gui/6_circle_drawer/Cargo.toml
index 6d4057db..1e69903e 100644
--- a/relm-examples/examples/7gui/6_circle_drawer/Cargo.toml
+++ b/relm-examples/examples/7gui/6_circle_drawer/Cargo.toml
@@ -5,14 +5,14 @@ authors = ["Julian Schmidhuber <schmidhuberj2@protonmail.com>"]
 edition = "2018"
 
 [dependencies]
-glib = "^0.16.0"
-gtk = { version = "^0.16.0", features = ["v3_24"] }
-gdk = "^0.16.0"
-cairo-rs = "^0.16.0"
+glib = "0.18"
+gtk = { version = "0.18", features = ["v3_24"] }
+gdk = "0.18"
+cairo-rs = "0.18"
 
 [dependencies.gio]
 features = ["v2_58"]
-version = "^0.16.0"
+version = "0.18"
 
 [dependencies.relm]
 path = "../../../.."
diff --git a/relm-examples/examples/7gui/6_circle_drawer/src/gui/circle_drawing.rs b/relm-examples/examples/7gui/6_circle_drawer/src/gui/circle_drawing.rs
index 1594c2f1..8c01cfa4 100644
--- a/relm-examples/examples/7gui/6_circle_drawer/src/gui/circle_drawing.rs
+++ b/relm-examples/examples/7gui/6_circle_drawer/src/gui/circle_drawing.rs
@@ -4,6 +4,7 @@ use crate::gui::window_resize::{WindowResize, WindowResizeMsg};
 use crate::model::{Circle, CircleGroup};
 
 use gdk::{EventButton, EventMotion};
+use glib::Propagation;
 use gtk::prelude::*;
 use gtk::{DrawingArea, EventBox};
 use relm::{connect, init, Component, DrawHandler, Relm, StreamHandle, Update, Widget};
@@ -206,7 +207,7 @@ impl Widget for CircleDrawing {
             return (
                 // What to do when the signal occured.
                 Some(CircleDrawingMsg::UpdateDrawBuffer), // Sending a message.
-                Inhibit(false) // Do not inhibit, other widgets may also register that mouse press.
+                Propagation::Proceed // Do not inhibit, other widgets may also register that mouse press.
             )
         );
 
@@ -218,7 +219,7 @@ impl Widget for CircleDrawing {
             return (
                 // What to do when the signal occured.
                 Some(CircleDrawingMsg::Clicked(event.clone())), // Sending a message.
-                Inhibit(false) // Do not inhibit, other widgets may also register that mouse press.
+                Propagation::Proceed // Do not inhibit, other widgets may also register that mouse press.
             )
         );
 
@@ -233,7 +234,7 @@ impl Widget for CircleDrawing {
             connect_motion_notify_event(_, event),
             return (
                 Some(CircleDrawingMsg::MouseMove(event.clone())),
-                Inhibit(false)
+                Propagation::Proceed
             )
         );
 
diff --git a/relm-examples/examples/7gui/6_circle_drawer/src/gui/win.rs b/relm-examples/examples/7gui/6_circle_drawer/src/gui/win.rs
index 81c7b91f..2db4bbb6 100644
--- a/relm-examples/examples/7gui/6_circle_drawer/src/gui/win.rs
+++ b/relm-examples/examples/7gui/6_circle_drawer/src/gui/win.rs
@@ -1,6 +1,7 @@
 use crate::gui::circle_drawing::{CircleDrawing, CircleDrawingMsg};
 use crate::model::{CircleGroup, History};
 
+use glib::Propagation;
 use gtk::prelude::*;
 use gtk::Orientation;
 use relm::{Relm, Widget};
@@ -73,7 +74,7 @@ impl Widget for Win {
                     vexpand: true
                 }
             },
-            delete_event(_, _) => (WinMsg::Quit, Inhibit(false)),
+            delete_event(_, _) => (WinMsg::Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/7gui/6_circle_drawer/src/gui/window_resize.rs b/relm-examples/examples/7gui/6_circle_drawer/src/gui/window_resize.rs
index f81af9d0..07a46a52 100644
--- a/relm-examples/examples/7gui/6_circle_drawer/src/gui/window_resize.rs
+++ b/relm-examples/examples/7gui/6_circle_drawer/src/gui/window_resize.rs
@@ -1,5 +1,6 @@
 use crate::gui::circle_drawing::CircleDrawingMsg;
 
+use glib::Propagation;
 use gtk::prelude::*;
 use gtk::Adjustment;
 use relm::{Relm, StreamHandle, Widget};
@@ -50,7 +51,7 @@ impl Widget for WindowResize {
                     WindowResizeMsg::ValueChanged(value)
                 }
             },
-            delete_event(_, _) => (WindowResizeMsg::Quit, Inhibit(false)),
+            delete_event(_, _) => (WindowResizeMsg::Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/7gui/7_cells/Cargo.toml b/relm-examples/examples/7gui/7_cells/Cargo.toml
index e24bdbec..3f2b4615 100644
--- a/relm-examples/examples/7gui/7_cells/Cargo.toml
+++ b/relm-examples/examples/7gui/7_cells/Cargo.toml
@@ -5,13 +5,13 @@ authors = ["Julian Schmidhuber <schmidhuberj2@protonmail.com>"]
 edition = "2018"
 
 [dependencies]
-glib = "^0.16.0"
-gtk = { version = "^0.16.0", features = ["v3_24"] }
-gdk = "^0.16.0"
+glib = "0.18"
+gtk = { version = "0.18", features = ["v3_24"] }
+gdk = "0.18"
 
 [dependencies.gio]
 features = ["v2_58"]
-version = "^0.16.0"
+version = "0.18"
 
 [dependencies.relm]
 path = "../../../.."
diff --git a/relm-examples/examples/7gui/7_cells/src/gui/cell.rs b/relm-examples/examples/7gui/7_cells/src/gui/cell.rs
index 39fd224b..6baecd32 100644
--- a/relm-examples/examples/7gui/7_cells/src/gui/cell.rs
+++ b/relm-examples/examples/7gui/7_cells/src/gui/cell.rs
@@ -3,6 +3,7 @@ use crate::gui::spreadsheet::SpreadsheetMsg;
 use crate::model::CellRef;
 
 use gdk::EventButton;
+use glib::Propagation;
 use gtk::prelude::*;
 use relm::{Component, Relm, StreamHandle, Widget};
 use relm_derive::{widget, Msg};
@@ -106,7 +107,7 @@ impl Widget for Cell {
         // The event box is used to recieve click events.
         #[name="event_box"]
         gtk::EventBox {
-            button_press_event(_, event) => (CellMsg::Clicked(event.clone()), Inhibit(false)),
+            button_press_event(_, event) => (CellMsg::Clicked(event.clone()), Propagation::Proceed),
             // The border around the label
             gtk::Frame {
                 gtk::Label {
diff --git a/relm-examples/examples/7gui/7_cells/src/gui/win.rs b/relm-examples/examples/7gui/7_cells/src/gui/win.rs
index 085ddd1e..9cbe11e7 100644
--- a/relm-examples/examples/7gui/7_cells/src/gui/win.rs
+++ b/relm-examples/examples/7gui/7_cells/src/gui/win.rs
@@ -1,7 +1,7 @@
 use crate::gui::spreadsheet::Spreadsheet;
 
+use glib::Propagation;
 use gtk::prelude::*;
-use gtk::Inhibit;
 use relm::Widget;
 use relm_derive::{widget, Msg};
 
@@ -24,7 +24,7 @@ impl Widget for Win {
     view! {
         gtk::Window {
             Spreadsheet {},
-            delete_event(_, _) => (WinMsg::Quit, Inhibit(false)),
+            delete_event(_, _) => (WinMsg::Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/async/Cargo.toml b/relm-examples/examples/async/Cargo.toml
index 3fa84222..8ca871c2 100644
--- a/relm-examples/examples/async/Cargo.toml
+++ b/relm-examples/examples/async/Cargo.toml
@@ -5,12 +5,12 @@ version = "0.1.0"
 edition = "2018"
 
 [dependencies]
-glib = "0.16.0"
-gtk = "^0.16.0"
+glib = "0.18"
+gtk = "0.18"
 
 [dependencies.gio]
 features = ["v2_58"]
-version = "^0.16.0"
+version = "0.18"
 
 [dependencies.relm]
 path = "../../.."
diff --git a/relm-examples/examples/async/src/main.rs b/relm-examples/examples/async/src/main.rs
index 51945328..38d1726d 100644
--- a/relm-examples/examples/async/src/main.rs
+++ b/relm-examples/examples/async/src/main.rs
@@ -26,11 +26,10 @@ use gio::{
     prelude::CancellableExt,
     prelude::FileExt,
 };
-use glib::GString;
+use glib::{GString, Propagation};
 use gtk::{
     FileChooserAction,
     FileChooserDialog,
-    Inhibit,
     ResponseType,
     prelude::ButtonExt,
     prelude::DialogExt,
@@ -102,7 +101,7 @@ impl Widget for Win {
                     label: "Open application",
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/buttons-attribute.rs b/relm-examples/examples/buttons-attribute.rs
index e9b51dac..ba115e72 100644
--- a/relm-examples/examples/buttons-attribute.rs
+++ b/relm-examples/examples/buttons-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -31,6 +30,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 // Define the structure of the model.
 pub struct Model {
@@ -91,7 +91,7 @@ impl Widget for Win {
                     label: "-",
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/buttons-attribute/Cargo.toml b/relm-examples/examples/buttons-attribute/Cargo.toml
index 93b1d0a6..f35cd27c 100644
--- a/relm-examples/examples/buttons-attribute/Cargo.toml
+++ b/relm-examples/examples/buttons-attribute/Cargo.toml
@@ -5,14 +5,11 @@ authors = ["Antoni Boucher <bouanto@zoho.com>"]
 edition = "2018"
 
 [dependencies]
-gtk = "^0.16.0"
-gtk-test = "^0.16.0"
+gtk = "0.18"
+gtk-test = "0.18"
 
 [dependencies.relm]
 path = "../../.."
 
 [dependencies.relm-derive]
 path = "../../../relm-derive"
-
-[dependencies.relm-test]
-path = "../../../relm-test"
diff --git a/relm-examples/examples/buttons-attribute/src/main.rs b/relm-examples/examples/buttons-attribute/src/main.rs
index f07f6030..36e80c53 100644
--- a/relm-examples/examples/buttons-attribute/src/main.rs
+++ b/relm-examples/examples/buttons-attribute/src/main.rs
@@ -20,7 +20,7 @@
  */
 
 use gtk::{
-    Inhibit,
+    glib::Propagation,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -90,7 +90,7 @@ impl Widget for Win {
                     visible: false,
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -103,8 +103,7 @@ fn main() {
 mod tests {
     use gtk::prelude::LabelExt;
 
-    use gtk_test::assert_text;
-    use relm_test::click;
+    use gtk_test::{assert_text, click};
 
     use crate::Win;
 
diff --git a/relm-examples/examples/buttons.rs b/relm-examples/examples/buttons.rs
index 8bb9f8d1..8fb13f4f 100644
--- a/relm-examples/examples/buttons.rs
+++ b/relm-examples/examples/buttons.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     Button,
-    Inhibit,
     Label,
     Window,
     WindowType,
@@ -33,6 +32,7 @@ use gtk::{
 use gtk::Orientation::Vertical;
 use relm_derive::Msg;
 use relm::{connect, Relm, Update, Widget, WidgetTest};
+use glib::Propagation;
 
 struct Model {
     counter: i32,
@@ -122,7 +122,7 @@ impl Widget for Win {
         // Send the message Increment when the button is clicked.
         connect!(relm, plus_button, connect_clicked(_), Msg::Increment);
         connect!(relm, minus_button, connect_clicked(_), Msg::Decrement);
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Propagation::Proceed));
 
         Win {
             model,
diff --git a/relm-examples/examples/clock-attribute.rs b/relm-examples/examples/clock-attribute.rs
index d990e29b..420c8dda 100644
--- a/relm-examples/examples/clock-attribute.rs
+++ b/relm-examples/examples/clock-attribute.rs
@@ -21,7 +21,6 @@
 
 use chrono::{DateTime, Local};
 use gtk::{
-    Inhibit,
     prelude::LabelExt,
     prelude::WidgetExt,
 };
@@ -29,6 +28,7 @@ use relm::{Relm, Widget, interval};
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct Model {
     time: DateTime<Local>,
@@ -65,7 +65,7 @@ impl Widget for Win {
             gtk::Label {
                 text: &self.model.time.format("%H:%M:%S").to_string(),
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/clock.rs b/relm-examples/examples/clock.rs
index 41761da4..7b0c044d 100644
--- a/relm-examples/examples/clock.rs
+++ b/relm-examples/examples/clock.rs
@@ -21,7 +21,6 @@
 
 use chrono::Local;
 use gtk::{
-    Inhibit,
     Label,
     Window,
     WindowType,
@@ -33,6 +32,7 @@ use relm_derive::Msg;
 use relm::{connect,Relm, Update, Widget, WidgetTest, interval};
 
 use self::Msg::*;
+use glib::Propagation;
 
 #[derive(Msg)]
 enum Msg {
@@ -86,7 +86,7 @@ impl Widget for Win {
 
         window.show_all();
 
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Propagation::Proceed));
 
         let mut win = Win {
             label: label,
diff --git a/relm-examples/examples/core.rs b/relm-examples/examples/core.rs
index 40ed90da..9d3bd234 100644
--- a/relm-examples/examples/core.rs
+++ b/relm-examples/examples/core.rs
@@ -24,7 +24,6 @@
 use chrono::Local;
 use gtk::{
     Button,
-    Inhibit,
     Label,
     Window,
     WindowType,
@@ -37,6 +36,7 @@ use gtk::Orientation::Vertical;
 use relm::EventStream;
 
 use Msg::*;
+use glib::Propagation;
 
 
 // There will be several widgets involved in this example, but this struct
@@ -140,7 +140,7 @@ fn main() {
         let stream = main_stream.downgrade();
         window.connect_delete_event(move |_, _| {
             stream.emit(Quit);
-            Inhibit(false)
+            Propagation::Proceed
         });
     }
 
diff --git a/relm-examples/examples/direct-communication-attribute.rs b/relm-examples/examples/direct-communication-attribute.rs
index 54a017b0..66f4fe60 100644
--- a/relm-examples/examples/direct-communication-attribute.rs
+++ b/relm-examples/examples/direct-communication-attribute.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     EditableSignals,
-    Inhibit,
     prelude::ButtonExt,
     prelude::EntryExt,
     prelude::LabelExt,
@@ -35,6 +34,7 @@ use relm_derive::{Msg, widget};
 use self::CounterMsg::*;
 use self::Msg::*;
 use self::TextMsg::*;
+use glib::Propagation;
 
 pub struct TextModel {
     content: String,
@@ -184,7 +184,7 @@ impl Widget for Win {
                     text: &self.model.counter.to_string(),
                 }
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/draw.rs b/relm-examples/examples/draw.rs
index f52a6e05..6cfd171b 100644
--- a/relm-examples/examples/draw.rs
+++ b/relm-examples/examples/draw.rs
@@ -23,14 +23,12 @@ use std::cell::Cell;
 use std::rc::Rc;
 
 use gdk::EventKey;
-use gtk::{
-    Inhibit,
-    prelude::WidgetExt,
-};
+use gtk::prelude::WidgetExt;
 use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct Model {
     letter: Rc<Cell<char>>,
@@ -54,7 +52,7 @@ impl Widget for Win {
             context.set_source_rgb(0.0, 0.0, 0.0);
             context.move_to(100.0, 100.0);
             context.show_text(&letter.get().to_string()).unwrap();
-            Inhibit(false)
+            Propagation::Proceed
         });
     }
 
@@ -81,8 +79,8 @@ impl Widget for Win {
             #[name="drawing_area"]
             gtk::DrawingArea {
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
-            key_press_event(_, event) => (KeyPress(event.clone()), Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
+            key_press_event(_, event) => (KeyPress(event.clone()), Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/drawing.rs b/relm-examples/examples/drawing.rs
index b7719d15..18f64cc0 100644
--- a/relm-examples/examples/drawing.rs
+++ b/relm-examples/examples/drawing.rs
@@ -24,7 +24,6 @@ use std::f64::consts::PI;
 use gdk::{EventMask, RGBA};
 use gtk::{
     DrawingArea,
-    Inhibit,
     prelude::BoxExt,
     prelude::OrientableExt,
     prelude::WidgetExt,
@@ -42,6 +41,7 @@ use relm::{
 use relm_derive::widget;
 
 use self::Msg::*;
+use glib::Propagation;
 
 const SIZE: f64 = 15.0;
 
@@ -162,15 +162,15 @@ impl Widget for Win {
                     child: {
                         expand: true,
                     },
-                    draw(_, _) => (UpdateDrawBuffer, Inhibit(false)),
-                    motion_notify_event(_, event) => (MoveCursor(event.position()), Inhibit(false))
+                    draw(_, _) => (UpdateDrawBuffer, Propagation::Proceed),
+                    motion_notify_event(_, event) => (MoveCursor(event.position()), Propagation::Proceed)
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
 
 fn main() {
     Win::run(()).unwrap();
-}
\ No newline at end of file
+}
diff --git a/relm-examples/examples/glade.rs b/relm-examples/examples/glade.rs
index 410a35bb..edd14319 100644
--- a/relm-examples/examples/glade.rs
+++ b/relm-examples/examples/glade.rs
@@ -23,7 +23,6 @@ use gtk::{
     prelude::BuilderExtManual,
     Builder,
     Button,
-    Inhibit,
     Label,
     Window,
     prelude::ButtonExt,
@@ -32,6 +31,7 @@ use gtk::{
 };
 use relm_derive::Msg;
 use relm::{connect, Relm, Update, Widget, WidgetTest};
+use glib::Propagation;
 
 struct Model {
     counter: i32,
@@ -112,7 +112,7 @@ impl Widget for Win {
 
         connect!(relm, plus_button, connect_clicked(_), Msg::Increment);
         connect!(relm, minus_button, connect_clicked(_), Msg::Decrement);
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Propagation::Proceed));
 
         Win {
             model,
diff --git a/relm-examples/examples/headerbar.rs b/relm-examples/examples/headerbar.rs
index 0cb30069..669db3a8 100644
--- a/relm-examples/examples/headerbar.rs
+++ b/relm-examples/examples/headerbar.rs
@@ -1,11 +1,11 @@
-use gtk::{Inhibit};
-use gtk::Orientation::{Vertical};
+use gtk::Orientation::Vertical;
 use gtk::prelude::*;
 use relm_derive::{Msg, widget};
 use relm::{Component, Widget, init};
 
 use self::HeaderMsg::*;
 use self::WinMsg::*;
+use glib::Propagation;
 
 #[derive(Msg)]
 pub enum HeaderMsg {
@@ -82,7 +82,7 @@ impl Widget for Win {
                 orientation: Vertical
             },
 
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/http/Cargo.toml b/relm-examples/examples/http/Cargo.toml
index a7932810..aa5badd1 100644
--- a/relm-examples/examples/http/Cargo.toml
+++ b/relm-examples/examples/http/Cargo.toml
@@ -5,12 +5,12 @@ version = "0.1.0"
 edition = "2018"
 
 [dependencies]
-gdk = "^0.16.0"
-gdk-pixbuf = "^0.16.0"
-gio = "^0.16.0"
-glib = "^0.16.0"
-glib-sys = "^0.16.0"
-gtk = "^0.16.0"
+gdk = "0.18"
+gdk-pixbuf = "0.18"
+gio = "0.18"
+glib = "0.18"
+glib-sys = "0.18"
+gtk = "0.18"
 json = "0.12.4"
 simplelog = "0.12.0"
 uhttp_uri = "^0.5.1"
diff --git a/relm-examples/examples/http/src/main.rs b/relm-examples/examples/http/src/main.rs
index 88016a8c..e57c0646 100644
--- a/relm-examples/examples/http/src/main.rs
+++ b/relm-examples/examples/http/src/main.rs
@@ -33,10 +33,9 @@ use gio::{
     prelude::SocketClientExt,
     prelude::{InputStreamExtManual, OutputStreamExtManual},
 };
-use glib::Cast;
-use glib::source::PRIORITY_DEFAULT;
+use glib::{Cast, Propagation};
+use glib::source::Priority;
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::CssProviderExt,
     prelude::ImageExt,
@@ -174,7 +173,7 @@ impl Widget for Win {
                     clicked => FetchUrl,
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -262,7 +261,7 @@ impl Update for Http {
                     let path = uri.resource.path;
                     let query = uri.resource.query.unwrap_or_default();
                     let buffer = format!("GET {}?{} HTTP/1.1\r\nHost: {}\r\n\r\n", path, query, uri.authority);
-                    connect_async!(writer, write_async(buffer.into_bytes(), PRIORITY_DEFAULT), self.model.relm,
+                    connect_async!(writer, write_async(buffer.into_bytes(), Priority::DEFAULT), self.model.relm,
                         |_| Wrote);
                 }
             },
@@ -276,7 +275,7 @@ impl Update for Http {
                 else {
                     if let Some(ref stream) = self.model.stream {
                         let reader = stream.input_stream();
-                        connect_async!(reader, read_async(vec![0; READ_SIZE], PRIORITY_DEFAULT), self.model.relm, Read);
+                        connect_async!(reader, read_async(vec![0; READ_SIZE], Priority::DEFAULT), self.model.relm, Read);
                     }
                 }
                 buffer.truncate(size);
@@ -326,7 +325,7 @@ impl Update for Http {
             Wrote => {
                 if let Some(ref stream) = self.model.stream {
                     let reader = stream.input_stream();
-                    connect_async!(reader, read_async(vec![0; READ_SIZE], PRIORITY_DEFAULT), self.model.relm, Read);
+                    connect_async!(reader, read_async(vec![0; READ_SIZE], Priority::DEFAULT), self.model.relm, Read);
                 }
             },
         }
diff --git a/relm-examples/examples/menu.rs b/relm-examples/examples/menu.rs
index d597d254..533feaf9 100644
--- a/relm-examples/examples/menu.rs
+++ b/relm-examples/examples/menu.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::GtkMenuItemExt,
     prelude::MenuShellExt,
     prelude::OrientableExt,
@@ -31,6 +30,7 @@ use relm::{Relm, Widget, connect};
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct Model {
     relm: Relm<Win>,
@@ -75,7 +75,7 @@ impl Widget for Win {
                 gtk::MenuBar {
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/multi-window.rs b/relm-examples/examples/multi-window.rs
index a73e79ab..9ecad0ad 100644
--- a/relm-examples/examples/multi-window.rs
+++ b/relm-examples/examples/multi-window.rs
@@ -19,14 +19,12 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-use gtk::{
-    Inhibit,
-    prelude::WidgetExt,
-};
+use gtk::prelude::WidgetExt;
 use relm::{Component, Widget, init};
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 #[widget]
 impl Widget for SecondaryWin {
@@ -38,7 +36,7 @@ impl Widget for SecondaryWin {
 
     view! {
         gtk::Window {
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -68,7 +66,7 @@ impl Widget for Win {
 
     view! {
         gtk::Window {
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/multithread.rs b/relm-examples/examples/multithread.rs
index 962a3e86..d0cde565 100644
--- a/relm-examples/examples/multithread.rs
+++ b/relm-examples/examples/multithread.rs
@@ -23,7 +23,6 @@ use std::thread;
 use std::time::Duration;
 
 use gtk::{
-    Inhibit,
     prelude::LabelExt,
     prelude::OrientableExt,
     prelude::WidgetExt,
@@ -33,6 +32,7 @@ use relm::{Channel, Relm, Widget};
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct Model {
     _channel: Channel<i32>,
@@ -82,7 +82,7 @@ impl Widget for Win {
                     text: &self.model.text,
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/nested-view-attribute.rs b/relm-examples/examples/nested-view-attribute.rs
index ba6ecb3d..8957c850 100644
--- a/relm-examples/examples/nested-view-attribute.rs
+++ b/relm-examples/examples/nested-view-attribute.rs
@@ -19,16 +19,14 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-use gtk::{
-    prelude::*,
-    Inhibit,
-};
+use gtk::prelude::*;
 use gtk::Orientation::{Horizontal, Vertical};
 use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
 use self::CounterMsg::SetIncrement;
+use glib::Propagation;
 
 pub struct CounterModel {
     counter: i32,
@@ -192,7 +190,7 @@ impl Widget for Win {
                     },
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/orphan-widgets-attribute.rs b/relm-examples/examples/orphan-widgets-attribute.rs
index 0514378d..ca5bea8b 100644
--- a/relm-examples/examples/orphan-widgets-attribute.rs
+++ b/relm-examples/examples/orphan-widgets-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::BoxExt,
     prelude::ButtonExt,
     prelude::GestureDragExt,
@@ -33,6 +32,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct Model {
     counter: i32,
@@ -93,7 +93,7 @@ impl Widget for Win {
                     label: "Second",
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
 
         gtk::GestureDrag(&self.drawing_area) {
diff --git a/relm-examples/examples/readme-attributes.rs b/relm-examples/examples/readme-attributes.rs
index 346c48ea..ea0c1869 100644
--- a/relm-examples/examples/readme-attributes.rs
+++ b/relm-examples/examples/readme-attributes.rs
@@ -1,8 +1,8 @@
 use relm_derive::{Msg, widget};
 use relm::Widget;
 use gtk::prelude::*;
-use gtk::Inhibit;
 use gtk::Orientation::Vertical;
+use glib::Propagation;
 
 #[derive(Msg)]
 pub enum Msg {
@@ -58,7 +58,7 @@ impl Widget for Win {
             },
             // Use a tuple when you want to both send a message and return a value to
             // the GTK+ callback.
-            delete_event(_, _) => (Msg::Quit, Inhibit(false)),
+            delete_event(_, _) => (Msg::Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/readme.rs b/relm-examples/examples/readme.rs
index 7c9dfbca..ebeb63f8 100644
--- a/relm-examples/examples/readme.rs
+++ b/relm-examples/examples/readme.rs
@@ -1,7 +1,8 @@
 use relm_derive::Msg;
 use relm::{connect, Relm, Update, Widget};
 use gtk::prelude::*;
-use gtk::{Window, Inhibit, WindowType};
+use gtk::{Window, WindowType};
+use glib::Propagation;
 
 #[derive(Msg)]
 enum Msg {
@@ -57,7 +58,7 @@ impl Widget for Win {
         let window = Window::new(WindowType::Toplevel);
 
         // Connect the signal `delete_event` to send the `Quit` message.
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Propagation::Proceed));
         // There is also a `connect!()` macro for GTK+ events that do not need a
         // value to be returned in the callback.
 
diff --git a/relm-examples/examples/tabs.rs b/relm-examples/examples/tabs.rs
index a1a7d2d1..2007017f 100644
--- a/relm-examples/examples/tabs.rs
+++ b/relm-examples/examples/tabs.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::NotebookExt,
@@ -30,6 +29,7 @@ use relm_derive::{widget, Msg};
 use relm::Widget;
 
 use self::Msg::*;
+use glib::Propagation;
 
 #[derive(Msg)]
 pub enum Msg {
@@ -71,7 +71,7 @@ impl Widget for Win {
                     label: "Another Button",
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/text-fields-attribute.rs b/relm-examples/examples/text-fields-attribute.rs
index f9b08199..8e6f999d 100644
--- a/relm-examples/examples/text-fields-attribute.rs
+++ b/relm-examples/examples/text-fields-attribute.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     EditableSignals,
-    Inhibit,
     prelude::EntryExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -32,6 +31,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct Model {
     content: String,
@@ -79,7 +79,7 @@ impl Widget for Win {
                     text: &self.model.content,
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/examples/text-fields.rs b/relm-examples/examples/text-fields.rs
index f49f6253..02a4b5ed 100644
--- a/relm-examples/examples/text-fields.rs
+++ b/relm-examples/examples/text-fields.rs
@@ -22,7 +22,6 @@
 use gtk::{
     EditableSignals,
     Entry,
-    Inhibit,
     Label,
     Window,
     WindowType,
@@ -36,6 +35,7 @@ use relm_derive::Msg;
 use relm::{connect, Relm, Update, Widget, WidgetTest};
 
 use self::Msg::*;
+use glib::Propagation;
 
 struct Model {
     content: String,
@@ -107,7 +107,7 @@ impl Widget for Win {
         window.show_all();
 
         connect!(relm, input, connect_changed(_), Change);
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Propagation::Proceed));
 
         Win {
             model,
diff --git a/relm-examples/examples/tree-view.rs b/relm-examples/examples/tree-view.rs
index c5671c57..be6885e1 100644
--- a/relm-examples/examples/tree-view.rs
+++ b/relm-examples/examples/tree-view.rs
@@ -23,9 +23,8 @@ use std::fs;
 use std::io;
 use std::path::{MAIN_SEPARATOR, PathBuf};
 
-use glib::StaticType;
+use glib::{StaticType, Propagation};
 use gtk::{
-    Inhibit,
     TreeView,
     Window,
     WindowType,
@@ -150,7 +149,7 @@ impl Widget for Win {
         window.show_all();
 
         connect!(relm, tree_view, connect_cursor_changed(_), Msg::ItemSelect);
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Propagation::Proceed));
 
         Win {
             tree_view,
diff --git a/relm-examples/examples/widget-list.rs b/relm-examples/examples/widget-list.rs
index 2e3b0459..7b61a296 100644
--- a/relm-examples/examples/widget-list.rs
+++ b/relm-examples/examples/widget-list.rs
@@ -22,7 +22,6 @@
 use std::sync::atomic::{AtomicUsize, Ordering};
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -34,6 +33,7 @@ use relm_derive::{Msg, widget};
 
 use self::CounterMsg::*;
 use self::Msg::*;
+use glib::Propagation;
 
 static COUNTER: AtomicUsize = AtomicUsize::new(0);
 
@@ -143,7 +143,7 @@ impl Widget for Win {
                     clicked => Remove,
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/buttons-child-attribute.rs b/relm-examples/tests/buttons-child-attribute.rs
index 23a0a9d0..aa707692 100644
--- a/relm-examples/tests/buttons-child-attribute.rs
+++ b/relm-examples/tests/buttons-child-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     PackType,
     prelude::BoxExt,
     prelude::ButtonExt,
@@ -34,6 +33,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct Model {
     counter: i32,
@@ -88,7 +88,7 @@ impl Widget for Win {
                     label: "+",
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/buttons-construct-prop-attribute.rs b/relm-examples/tests/buttons-construct-prop-attribute.rs
index a082ac0c..47030005 100644
--- a/relm-examples/tests/buttons-construct-prop-attribute.rs
+++ b/relm-examples/tests/buttons-construct-prop-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -31,6 +30,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 // Define the structure of the model.
 pub struct Model {
@@ -85,7 +85,7 @@ impl Widget for Win {
                     label: "-",
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/buttons-input.rs b/relm-examples/tests/buttons-input.rs
index 0454654f..e5c1508e 100644
--- a/relm-examples/tests/buttons-input.rs
+++ b/relm-examples/tests/buttons-input.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     EditableSignals,
-    Inhibit,
     prelude::ButtonExt,
     prelude::EntryExt,
     prelude::LabelExt,
@@ -33,6 +32,7 @@ use relm::{Relm, Widget};
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct Model {
     left_text: String,
@@ -119,7 +119,7 @@ impl Widget for Win {
                     label: &self.model.text,
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -136,11 +136,11 @@ mod tests {
 
     use gtk_test::{
         assert_text,
-        focus,
-    };
-    use relm_test::{
         enter_key,
         enter_keys,
+        focus
+    };
+    use relm_test::{
         relm_observer_new,
         relm_observer_wait,
     };
diff --git a/relm-examples/tests/buttons-test.rs b/relm-examples/tests/buttons-test.rs
index 90243dcc..2c350780 100644
--- a/relm-examples/tests/buttons-test.rs
+++ b/relm-examples/tests/buttons-test.rs
@@ -21,7 +21,6 @@
 
 use gdk::EventType::DoubleButtonPress;
 use gtk::{
-    Inhibit,
     Menu,
     MenuItem,
     prelude::ButtonExt,
@@ -38,6 +37,7 @@ use relm_derive::{Msg, widget};
 
 use self::Msg::*;
 use self::LabelMsg::*;
+use glib::Propagation;
 
 pub struct LabelModel {
     text: String,
@@ -76,7 +76,7 @@ impl Widget for ClickableLabel {
                 else {
                     Click
                 }
-            }, Inhibit(false)),
+            }, Propagation::Proceed),
             #[name="label"]
             gtk::Label {
                 widget_name: "label",
@@ -202,7 +202,7 @@ impl Widget for Win {
                     Text: self.model.inc_text.clone(),
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -220,12 +220,12 @@ mod tests {
 
     use gtk_test::{
         assert_text,
+        click,
+        double_click,
         wait,
     };
     use relm_test::{
         Observer,
-        click,
-        double_click,
         relm_observer_new,
         relm_observer_wait,
     };
diff --git a/relm-examples/tests/buttons.relm b/relm-examples/tests/buttons.relm
index 99762c0b..d2bf53b4 100644
--- a/relm-examples/tests/buttons.relm
+++ b/relm-examples/tests/buttons.relm
@@ -20,5 +20,5 @@ gtk::Window {
             label: "-",
         },
     },
-    delete_event(_, _) => (Quit, Inhibit(false)),
+    delete_event(_, _) => (Quit, Propagation::Proceed),
 }
diff --git a/relm-examples/tests/checkboxes.rs b/relm-examples/tests/checkboxes.rs
index 99ad1f89..640a2e06 100644
--- a/relm-examples/tests/checkboxes.rs
+++ b/relm-examples/tests/checkboxes.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     Window,
     WindowType,
     prelude::ButtonExt,
@@ -42,6 +41,7 @@ use relm_derive::Msg;
 
 use self::CheckMsg::*;
 use self::Msg::*;
+use glib::Propagation;
 
 struct CheckModel {
     check: bool,
@@ -190,7 +190,7 @@ impl Widget for Win {
 
         connect!(plus_button@Toggle, relm, PlusToggle);
         connect!(minus_button@Toggle, relm, MinusToggle);
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Propagation::Proceed));
 
         Win {
             widgets: Widgets {
@@ -226,8 +226,7 @@ fn main() {
 #[cfg(test)]
 mod tests {
     use gtk::prelude::ToggleButtonExt;
-
-    use relm_test::click;
+    use gtk_test::click;
 
     use crate::Win;
 
diff --git a/relm-examples/tests/child-event.rs b/relm-examples/tests/child-event.rs
index 12ce5668..7f46cf0d 100644
--- a/relm-examples/tests/child-event.rs
+++ b/relm-examples/tests/child-event.rs
@@ -19,10 +19,9 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-use glib::{ToValue, types::Type};
+use glib::{ToValue, types::Type, Propagation};
 use gtk::{
     CellRendererText,
-    Inhibit,
     ListStore,
     TreeSelection,
     TreeViewColumn,
@@ -125,7 +124,7 @@ impl Widget for Win {
                     visible: self.model.visible,
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/child-prop-attribute.rs b/relm-examples/tests/child-prop-attribute.rs
index b0f7ea3f..e21df82a 100644
--- a/relm-examples/tests/child-prop-attribute.rs
+++ b/relm-examples/tests/child-prop-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     PackType,
     prelude::BoxExt,
     prelude::ButtonExt,
@@ -33,6 +32,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 #[derive(Msg)]
 pub enum ButtonMsg {
@@ -105,7 +105,7 @@ impl Widget for Win {
                     clicked => Increment,
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/child-prop.rs b/relm-examples/tests/child-prop.rs
index 932a67a3..830f9f37 100644
--- a/relm-examples/tests/child-prop.rs
+++ b/relm-examples/tests/child-prop.rs
@@ -22,10 +22,9 @@
 use glib::{
     Cast,
     IsA,
-    Object,
+    Object, Propagation,
 };
 use gtk::{
-    Inhibit,
     PackType,
     prelude::BoxExt,
     prelude::ContainerExt,
@@ -147,7 +146,7 @@ impl Widget for Win {
         let dec_button = gtk::Button::with_label("-");
         vbox.add(&dec_button);
         let relm_button = vbox.add_widget::<Button>(());
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Propagation::Proceed));
         window.show_all();
 
         Win {
diff --git a/relm-examples/tests/communication-attribute.rs b/relm-examples/tests/communication-attribute.rs
index 971de036..bed03a97 100644
--- a/relm-examples/tests/communication-attribute.rs
+++ b/relm-examples/tests/communication-attribute.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     EditableSignals,
-    Inhibit,
     prelude::ButtonExt,
     prelude::EntryExt,
     prelude::LabelExt,
@@ -35,6 +34,7 @@ use relm_derive::{Msg, widget};
 use self::CounterMsg::*;
 use self::Msg::*;
 use self::TextMsg::*;
+use glib::Propagation;
 
 pub struct TextModel {
     content: String,
@@ -178,7 +178,7 @@ impl Widget for Win {
                     text: &self.model.counter.to_string(),
                 }
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -195,8 +195,7 @@ fn main() {
 mod tests {
     use gtk::{Button, Entry, Label, prelude::LabelExt};
 
-    use gtk_test::{assert_text, find_child_by_name};
-    use relm_test::{click, enter_keys};
+    use gtk_test::{assert_text, click, enter_keys, find_child_by_name};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/communication.rs b/relm-examples/tests/communication.rs
index c5809ed2..09c49063 100644
--- a/relm-examples/tests/communication.rs
+++ b/relm-examples/tests/communication.rs
@@ -23,7 +23,6 @@ use gtk::{
     Button,
     EditableSignals,
     Entry,
-    Inhibit,
     Label,
     Window,
     WindowType,
@@ -48,6 +47,7 @@ use relm::{
 use self::CounterMsg::*;
 use self::Msg::*;
 use self::TextMsg::*;
+use glib::Propagation;
 
 struct TextModel {
     content: String,
@@ -276,7 +276,7 @@ impl Widget for Win {
 
         window.show_all();
 
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Propagation::Proceed));
 
         Win {
             widgets: Widgets {
@@ -318,8 +318,7 @@ fn main() {
 mod tests {
     use gtk::{Button, Entry, Label, prelude::LabelExt};
 
-    use gtk_test::{assert_text, find_child_by_name};
-    use relm_test::{click, enter_keys};
+    use gtk_test::{assert_text, click, enter_keys, find_child_by_name};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/container-attribute.rs b/relm-examples/tests/container-attribute.rs
index ef480f9f..3645b4e6 100644
--- a/relm-examples/tests/container-attribute.rs
+++ b/relm-examples/tests/container-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::BoxExt,
     prelude::ButtonExt,
     prelude::LabelExt,
@@ -32,6 +31,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 #[derive(Msg)]
 pub enum ButtonMsg {
@@ -143,7 +143,7 @@ impl Widget for Win {
                     label: "-",
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/container.rs b/relm-examples/tests/container.rs
index df558870..e91fa29e 100644
--- a/relm-examples/tests/container.rs
+++ b/relm-examples/tests/container.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     EventBox,
-    Inhibit,
     Label,
     Window,
     prelude::ContainerExt,
@@ -43,6 +42,7 @@ use relm::{
 use relm_derive::Msg;
 
 use self::Msg::*;
+use glib::Propagation;
 
 struct Button {
     button: gtk::Button,
@@ -178,7 +178,7 @@ impl Widget for Win {
         let button = vbox.add_widget::<Button>(());
         let dec_button = gtk::Button::with_label("-");
         vbox.add(&dec_button);
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Propagation::Proceed));
         window.show_all();
         Win {
             _components: Components {
diff --git a/relm-examples/tests/generic-widget-attribute.rs b/relm-examples/tests/generic-widget-attribute.rs
index 81d78035..072aa7c1 100644
--- a/relm-examples/tests/generic-widget-attribute.rs
+++ b/relm-examples/tests/generic-widget-attribute.rs
@@ -22,7 +22,6 @@
 use std::fmt::Display;
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -34,6 +33,7 @@ use relm_derive::{Msg, widget};
 
 use self::CounterMsg::*;
 use self::Msg::*;
+use glib::Propagation;
 
 pub trait IncDec {
     fn dec(&self) -> Self;
@@ -126,7 +126,7 @@ impl Widget for Win {
                 #[name="counter2"]
                 Counter<i32>(3),
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -139,8 +139,7 @@ fn main() {
 mod tests {
     use gtk::{Button, Label, prelude::LabelExt};
 
-    use gtk_test::{assert_text, find_child_by_name};
-    use relm_test::click;
+    use gtk_test::{assert_text, click, find_child_by_name};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/generic-widget.rs b/relm-examples/tests/generic-widget.rs
index 74bfcf6c..60aa529c 100644
--- a/relm-examples/tests/generic-widget.rs
+++ b/relm-examples/tests/generic-widget.rs
@@ -23,7 +23,6 @@ use std::fmt::Display;
 
 use gtk::{
     Button,
-    Inhibit,
     Label,
     Window,
     WindowType,
@@ -46,6 +45,7 @@ use relm_derive::Msg;
 
 use self::CounterMsg::*;
 use self::Msg::*;
+use glib::Propagation;
 
 trait IncDec {
     fn dec(&mut self);
@@ -199,7 +199,7 @@ impl Widget for Win {
 
         window.show_all();
 
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Propagation::Proceed));
 
         Win {
             widgets: Widgets {
@@ -236,8 +236,7 @@ fn main() {
 mod tests {
     use gtk::{Button, Label, prelude::LabelExt};
 
-    use gtk_test::{assert_text, find_child_by_name};
-    use relm_test::click;
+    use gtk_test::{assert_text, click, find_child_by_name};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/grid-attributes.rs b/relm-examples/tests/grid-attributes.rs
index 86c46f80..6de4fd26 100644
--- a/relm-examples/tests/grid-attributes.rs
+++ b/relm-examples/tests/grid-attributes.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::GridExt,
     prelude::WidgetExt,
@@ -29,6 +28,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 #[derive(Msg)]
 pub enum Msg {
@@ -146,7 +146,7 @@ impl Widget for Win {
                     },
                 }
             },
-            delete_event(_, _) => (Quit, Inhibit(false))
+            delete_event(_, _) => (Quit, Propagation::Proceed)
         }
     }
 }
diff --git a/relm-examples/tests/include.rs b/relm-examples/tests/include.rs
index acaadfbb..1c0896e8 100644
--- a/relm-examples/tests/include.rs
+++ b/relm-examples/tests/include.rs
@@ -19,14 +19,14 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
+use glib::Propagation;
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
     prelude::WidgetExt,
+    Orientation::Vertical
 };
-use gtk::Orientation::Vertical;
 use relm::Widget;
 use relm_derive::{Msg, widget};
 
@@ -75,8 +75,7 @@ fn main() {
 mod tests {
     use gtk::prelude::{ButtonExt, LabelExt};
 
-    use gtk_test::{assert_label, assert_text};
-    use relm_test::click;
+    use gtk_test::{assert_label, click, assert_text};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/input-test.rs b/relm-examples/tests/input-test.rs
index a7a33e44..1061c816 100644
--- a/relm-examples/tests/input-test.rs
+++ b/relm-examples/tests/input-test.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     EditableSignals,
-    Inhibit,
     prelude::EntryExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -32,6 +31,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct Model {
     content: String,
@@ -76,7 +76,7 @@ impl Widget for Win {
                     text: &self.model.content,
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -86,8 +86,8 @@ mod tests {
     use gdk::keys::constants as key;
     use gtk::prelude::{EntryExt, LabelExt};
 
-    use gtk_test::assert_text;
-    use relm_test::{
+    use gtk_test::{
+        assert_text,
         enter_key,
         enter_keys,
         key_press,
diff --git a/relm-examples/tests/key-events-attribute.rs b/relm-examples/tests/key-events-attribute.rs
index 86509156..6dbd74a6 100644
--- a/relm-examples/tests/key-events-attribute.rs
+++ b/relm-examples/tests/key-events-attribute.rs
@@ -22,14 +22,12 @@
 use std::cell::Cell;
 use std::rc::Rc;
 
-use gtk::{
-    Inhibit,
-    prelude::WidgetExt,
-};
+use gtk::prelude::WidgetExt;
 use relm::{Relm, Widget};
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 #[derive(Msg)]
 pub enum Msg {
@@ -76,15 +74,19 @@ impl Widget for Win {
                     key_press_event(_, key) with (press_count, relm) => (KeyPress, inhibit_press_event(&press_count, &relm)),
                 },
             },
-            key_press_event(_, key) => (Press, Inhibit(false)),
-            key_release_event(_, key) => (Release, Inhibit(false)),
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            key_press_event(_, key) => (Press, Propagation::Proceed),
+            key_release_event(_, key) => (Release, Propagation::Proceed),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
 
-fn inhibit_press_event(press_count: &Rc<Cell<i32>>, _relm: &Relm<Win>) -> Inhibit {
-    Inhibit(press_count.get() > 3)
+fn inhibit_press_event(press_count: &Rc<Cell<i32>>, _relm: &Relm<Win>) -> Propagation {
+    if press_count.get() > 3 {
+        Propagation::Stop
+    } else {
+        Propagation::Proceed
+    }
 }
 
 fn main() {
@@ -95,8 +97,7 @@ fn main() {
 mod tests {
     use gtk::prelude::EntryExt;
 
-    use gtk_test::assert_text;
-    use relm_test::enter_keys;
+    use gtk_test::{assert_text, enter_keys};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/key-events.rs b/relm-examples/tests/key-events.rs
index dace175c..6596f064 100644
--- a/relm-examples/tests/key-events.rs
+++ b/relm-examples/tests/key-events.rs
@@ -24,7 +24,6 @@ use std::rc::Rc;
 
 use gtk::{
     Entry,
-    Inhibit,
     Window,
     WindowType,
     prelude::ContainerExt,
@@ -34,6 +33,7 @@ use relm_derive::Msg;
 use relm::{connect, Relm, Update, Widget, WidgetTest};
 
 use self::Msg::*;
+use glib::Propagation;
 
 #[derive(Msg)]
 pub enum Msg {
@@ -102,9 +102,9 @@ impl Widget for Win {
 
         window.show_all();
 
-        connect!(relm, window, connect_key_press_event(_, _), return (Press, Inhibit(false)));
-        connect!(relm, window, connect_key_release_event(_, _), return (Release, Inhibit(false)));
-        connect!(relm, window, connect_delete_event(_, _), return (Quit, Inhibit(false)));
+        connect!(relm, window, connect_key_press_event(_, _), return (Press, Propagation::Proceed));
+        connect!(relm, window, connect_key_release_event(_, _), return (Release, Propagation::Proceed));
+        connect!(relm, window, connect_delete_event(_, _), return (Quit, Propagation::Proceed));
 
         Win {
             model,
@@ -129,8 +129,12 @@ impl WidgetTest for Win {
     }
 }
 
-fn inhibit_press_event(press_count: &Rc<Cell<i32>>, _relm: &Relm<Win>) -> Inhibit {
-    Inhibit(press_count.get() > 3)
+fn inhibit_press_event(press_count: &Rc<Cell<i32>>, _relm: &Relm<Win>) -> Propagation {
+    if press_count.get() > 3 {
+        Propagation::Stop
+    } else {
+        Propagation::Proceed
+    }
 }
 
 fn main() {
@@ -141,8 +145,7 @@ fn main() {
 mod tests {
     use gtk::prelude::EntryExt;
 
-    use gtk_test::assert_text;
-    use relm_test::enter_keys;
+    use gtk_test::{assert_text, enter_keys};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/model-param-attribute.rs b/relm-examples/tests/model-param-attribute.rs
index 639ae471..e9d820d5 100644
--- a/relm-examples/tests/model-param-attribute.rs
+++ b/relm-examples/tests/model-param-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -31,6 +30,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct ButtonModel {
     text: String,
@@ -105,7 +105,7 @@ impl Widget for Win {
                     label: "-",
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -118,8 +118,7 @@ fn main() {
 mod tests {
     use gtk::prelude::LabelExt;
 
-    use gtk_test::assert_text;
-    use relm_test::click;
+    use gtk_test::{assert_text, click};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/model-param-widget-attribute.rs b/relm-examples/tests/model-param-widget-attribute.rs
index 4bc273a3..923a5864 100644
--- a/relm-examples/tests/model-param-widget-attribute.rs
+++ b/relm-examples/tests/model-param-widget-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -31,6 +30,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 pub struct ButtonModel {
     text: String,
@@ -109,7 +109,7 @@ impl Widget for Win {
                 #[name="button"]
                 Button("Button text attribute".to_string()),
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/model-param.rs b/relm-examples/tests/model-param.rs
index c545f57b..d7f8486a 100644
--- a/relm-examples/tests/model-param.rs
+++ b/relm-examples/tests/model-param.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     Button,
-    Inhibit,
     Label,
     Window,
     WindowType,
@@ -33,6 +32,7 @@ use gtk::{
 use gtk::Orientation::Vertical;
 use relm::{connect, Relm, Update, Widget, WidgetTest};
 use relm_derive::Msg;
+use glib::Propagation;
 
 struct Model {
     counter: i32,
@@ -121,7 +121,7 @@ impl Widget for Win {
         // Send the message Increment when the button is clicked.
         connect!(relm, plus_button, connect_clicked(_), Msg::Increment);
         connect!(relm, dec_button, connect_clicked(_), Msg::Decrement);
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Propagation::Proceed));
 
         Win {
             model,
@@ -155,8 +155,7 @@ fn main() {
 mod tests {
     use gtk::prelude::LabelExt;
 
-    use gtk_test::assert_text;
-    use relm_test::click;
+    use gtk_test::{assert_text, click};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/model-params-attribute.rs b/relm-examples/tests/model-params-attribute.rs
index 893475f5..2c352de1 100644
--- a/relm-examples/tests/model-params-attribute.rs
+++ b/relm-examples/tests/model-params-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -31,6 +30,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 // Define the structure of the model.
 pub struct Model {
@@ -86,7 +86,7 @@ impl Widget for Win {
                     label: "-",
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -99,8 +99,7 @@ fn main() {
 mod tests {
     use gtk::prelude::LabelExt;
 
-    use gtk_test::assert_text;
-    use relm_test::click;
+    use gtk_test::{assert_text, click};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/multi-container-attribute.rs b/relm-examples/tests/multi-container-attribute.rs
index fa6d4f4d..29426cdc 100644
--- a/relm-examples/tests/multi-container-attribute.rs
+++ b/relm-examples/tests/multi-container-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::BoxExt,
     prelude::ButtonExt,
     prelude::LabelExt,
@@ -32,6 +31,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 #[widget]
 impl Widget for MyFrame {
@@ -164,7 +164,7 @@ impl Widget for Win {
                     label: "-",
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/multi-container.rs b/relm-examples/tests/multi-container.rs
index 4a044f23..b778c5e8 100644
--- a/relm-examples/tests/multi-container.rs
+++ b/relm-examples/tests/multi-container.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     Frame,
-    Inhibit,
     Label,
     Window,
     prelude::ContainerExt,
@@ -44,6 +43,7 @@ use relm::{
 use relm_derive::Msg;
 
 use self::Msg::*;
+use glib::Propagation;
 
 struct CenterButton {
     button: gtk::Button,
@@ -300,7 +300,7 @@ impl Widget for Win {
         let center_button = vbox.add_widget::<CenterButton>(());
         let button2 = gtk::Button::with_label("-");
         vbox.add(&button2);
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Propagation::Proceed));
         window.show_all();
         Win {
             widgets: Widgets {
diff --git a/relm-examples/tests/multi-generic-widget-attribute.rs b/relm-examples/tests/multi-generic-widget-attribute.rs
index 164e2792..6c32ab9e 100644
--- a/relm-examples/tests/multi-generic-widget-attribute.rs
+++ b/relm-examples/tests/multi-generic-widget-attribute.rs
@@ -22,7 +22,6 @@
 use std::fmt::Display;
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -34,6 +33,7 @@ use relm_derive::{Msg, widget};
 
 use self::CounterMsg::*;
 use self::Msg::*;
+use glib::Propagation;
 
 pub trait IncDec {
     fn dec(&self) -> Self;
@@ -136,7 +136,7 @@ impl Widget for Win {
                 #[name="counter2"]
                 Counter<i32, i64>(3, 4),
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/multi-generic-widget.rs b/relm-examples/tests/multi-generic-widget.rs
index 12ff5a0d..63edfb02 100644
--- a/relm-examples/tests/multi-generic-widget.rs
+++ b/relm-examples/tests/multi-generic-widget.rs
@@ -24,7 +24,6 @@ use std::marker::PhantomData;
 
 use gtk::{
     Button,
-    Inhibit,
     Label,
     Window,
     WindowType,
@@ -47,6 +46,7 @@ use relm_derive::Msg;
 
 use self::CounterMsg::*;
 use self::Msg::*;
+use glib::Propagation;
 
 trait IncDec {
     fn dec(&mut self);
@@ -209,7 +209,7 @@ impl Widget for Win {
 
         window.show_all();
 
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Propagation::Proceed));
 
         Win {
             widgets: Widgets {
diff --git a/relm-examples/tests/multiple-widgets-attribute.rs b/relm-examples/tests/multiple-widgets-attribute.rs
index 7f8354ac..b2b62df5 100644
--- a/relm-examples/tests/multiple-widgets-attribute.rs
+++ b/relm-examples/tests/multiple-widgets-attribute.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     EditableSignals,
-    Inhibit,
     prelude::ButtonExt,
     prelude::EntryExt,
     prelude::LabelExt,
@@ -35,6 +34,7 @@ use relm_derive::{Msg, widget};
 use self::CounterMsg::*;
 use self::Msg::*;
 use self::TextMsg::*;
+use glib::Propagation;
 
 pub struct TextModel {
     content: String,
@@ -146,7 +146,7 @@ impl Widget for Win {
                 #[name="text"]
                 Text,
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -159,8 +159,7 @@ fn main() {
 mod tests {
     use gtk::{Button, Entry, Label, prelude::LabelExt};
 
-    use gtk_test::{assert_text, enter_keys, find_child_by_name};
-    use relm_test::click;
+    use gtk_test::{assert_text, click, enter_keys, find_child_by_name};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/multiple-widgets.rs b/relm-examples/tests/multiple-widgets.rs
index 97ad69e5..28688761 100644
--- a/relm-examples/tests/multiple-widgets.rs
+++ b/relm-examples/tests/multiple-widgets.rs
@@ -23,7 +23,6 @@ use gtk::{
     Button,
     EditableSignals,
     Entry,
-    Inhibit,
     Label,
     Window,
     WindowType,
@@ -48,6 +47,7 @@ use relm_derive::Msg;
 use self::CounterMsg::*;
 use self::Msg::*;
 use self::TextMsg::*;
+use glib::Propagation;
 
 struct TextModel {
     content: String,
@@ -249,7 +249,7 @@ impl Widget for Win {
 
         window.show_all();
 
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Quit), Propagation::Proceed));
 
         Win {
             widgets: Widgets {
@@ -288,8 +288,7 @@ fn main() {
 mod tests {
     use gtk::{Button, Entry, Label, prelude::LabelExt};
 
-    use gtk_test::{assert_text, find_child_by_name};
-    use relm_test::{click, enter_keys};
+    use gtk_test::{assert_text, click, enter_keys, find_child_by_name};
 
     use crate::Win;
 
diff --git a/relm-examples/tests/references.rs b/relm-examples/tests/references.rs
index e54f6f3f..0e1f37d6 100644
--- a/relm-examples/tests/references.rs
+++ b/relm-examples/tests/references.rs
@@ -51,7 +51,7 @@ impl Widget for RelmWidget {
     }
 
     fn view(_relm: &relm::Relm<Self>, _model: Self::Model) -> Self {
-        let root = gtk::builders::LabelBuilder::new().label("hello").build();
+        let root = gtk::Label::builder().label("hello").build();
         RelmWidget {
             root,
             item: Item {},
diff --git a/relm-examples/tests/references2.rs b/relm-examples/tests/references2.rs
index 2e6f2cb3..bba78e44 100644
--- a/relm-examples/tests/references2.rs
+++ b/relm-examples/tests/references2.rs
@@ -24,6 +24,7 @@ use std::cell::Cell;
 use gtk::{prelude::BoxExt, prelude::ButtonExt, prelude::ContainerExt, prelude::WidgetExt};
 use relm::{ContainerWidget, Widget, connect};
 use relm_derive::Msg;
+use glib::Propagation;
 
 thread_local! {
     static DROP_COUNT: Cell<i32> = Cell::new(0);
@@ -62,18 +63,18 @@ impl Widget for RelmWidget {
             relm,
             root,
             connect_delete_event(_, _),
-            return (Some(Msg::Quit), gtk::Inhibit(false))
+            return (Some(Msg::Quit), Propagation::Proceed)
         );
 
         let vbox = gtk::Box::new(gtk::Orientation::Vertical, 0);
         root.add(&vbox);
 
-        let add_button = gtk::builders::ButtonBuilder::new().label("Add").build();
+        let add_button = gtk::Button::builder().label("Add").build();
         add_button.set_widget_name("add_button");
         connect!(relm, add_button, connect_clicked(_), Msg::Add);
         vbox.pack_start(&add_button, false, false, 0);
 
-        let remove_button = gtk::builders::ButtonBuilder::new().label("Remove").build();
+        let remove_button = gtk::Button::builder().label("Remove").build();
         remove_button.set_widget_name("remove_button");
         connect!(relm, remove_button, connect_clicked(_), Msg::Remove);
         vbox.pack_start(&remove_button, false, false, 0);
@@ -140,7 +141,7 @@ impl relm::Widget for LabelWidget {
     }
 
     fn view(_relm: &relm::Relm<Self>, _model: Self::Model) -> Self {
-        let root = gtk::builders::LabelBuilder::new().label("hello").build();
+        let root = gtk::Label::builder().label("hello").build();
         LabelWidget {
             root,
             item: Item {},
diff --git a/relm-examples/tests/relm-root-attribute.rs b/relm-examples/tests/relm-root-attribute.rs
index 3bc9e854..2b74105c 100644
--- a/relm-examples/tests/relm-root-attribute.rs
+++ b/relm-examples/tests/relm-root-attribute.rs
@@ -20,7 +20,6 @@
  */
 
 use gtk::{
-    Inhibit,
     prelude::ButtonExt,
     prelude::LabelExt,
     prelude::OrientableExt,
@@ -31,6 +30,7 @@ use relm::Widget;
 use relm_derive::{Msg, widget};
 
 use self::Msg::*;
+use glib::Propagation;
 
 #[widget]
 impl Widget for Button {
@@ -124,7 +124,7 @@ impl Widget for Win {
         gtk::Window {
             #[name="vbox"]
             MyVBox,
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/relm-root.rs b/relm-examples/tests/relm-root.rs
index 6b102ddf..dacf94aa 100644
--- a/relm-examples/tests/relm-root.rs
+++ b/relm-examples/tests/relm-root.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     EventBox,
-    Inhibit,
     Label,
     Window,
     WindowType,
@@ -44,6 +43,7 @@ use relm::{
 use relm_derive::Msg;
 
 use self::Msg::*;
+use glib::Propagation;
 
 struct Button {
     button: gtk::Button,
@@ -221,7 +221,7 @@ impl Widget for Win {
         let vbox = window.add_widget::<MyVBox>(());
         window.show_all();
 
-        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Inhibit(false)));
+        connect!(relm, window, connect_delete_event(_, _), return (Some(Msg::Quit), Propagation::Proceed));
 
         Win {
             widgets: Widgets {
diff --git a/relm-examples/tests/simple.rs b/relm-examples/tests/simple.rs
index ddc65110..17d55abd 100644
--- a/relm-examples/tests/simple.rs
+++ b/relm-examples/tests/simple.rs
@@ -21,7 +21,8 @@
 
 #![deny(unused_doc_comments)]
 
-use gtk::{Inhibit, prelude::LabelExt, prelude::WidgetExt};
+use glib::Propagation;
+use gtk::{prelude::LabelExt, prelude::WidgetExt};
 use relm::Widget;
 use relm_derive::{Msg, widget};
 
@@ -81,7 +82,7 @@ impl Widget for Win {
         gtk::Window {
             #[name="label"]
             Label,
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
diff --git a/relm-examples/tests/text-fields-prop-attribute.rs b/relm-examples/tests/text-fields-prop-attribute.rs
index ac1b6f38..f2f89f27 100644
--- a/relm-examples/tests/text-fields-prop-attribute.rs
+++ b/relm-examples/tests/text-fields-prop-attribute.rs
@@ -21,7 +21,6 @@
 
 use gtk::{
     EditableSignals,
-    Inhibit,
     prelude::ButtonExt,
     prelude::EntryExt,
     prelude::LabelExt,
@@ -34,6 +33,7 @@ use relm_derive::{Msg, widget};
 
 use Msg::*;
 use TextMsg::*;
+use glib::Propagation;
 
 pub struct TextModel {
     content: String,
@@ -116,7 +116,7 @@ impl Widget for Win {
                     SetText: self.model.text.clone(),
                 },
             },
-            delete_event(_, _) => (Quit, Inhibit(false)),
+            delete_event(_, _) => (Quit, Propagation::Proceed),
         }
     }
 }
@@ -129,8 +129,7 @@ fn main() {
 mod tests {
     use gtk::{Entry, prelude::EntryExt};
 
-    use gtk_test::{assert_text, find_child_by_name, wait};
-    use relm_test::click;
+    use gtk_test::{assert_text, click, find_child_by_name, wait};
 
     use crate::Win;
 
diff --git a/relm-test/Cargo.toml b/relm-test/Cargo.toml
index b8457f57..23b76654 100644
--- a/relm-test/Cargo.toml
+++ b/relm-test/Cargo.toml
@@ -11,11 +11,10 @@ version = "0.24.0"
 edition = "2018"
 
 [dependencies]
-enigo = "^0.0.14"
-gdk = "0.16.0"
-glib = "0.16.2"
-gtk = "0.16.1"
-gtk-test = "0.16.0"
+gdk = "0.18"
+glib = "0.18"
+gtk = "0.18"
+gtk-test = "0.18"
 
 [dependencies.relm]
 path = ".."
diff --git a/relm-test/src/lib.rs b/relm-test/src/lib.rs
index c1e94422..503f5a71 100644
--- a/relm-test/src/lib.rs
+++ b/relm-test/src/lib.rs
@@ -22,36 +22,11 @@
 use std::cell::RefCell;
 use std::rc::Rc;
 
-use enigo::{Enigo, KeyboardControllable, MouseButton, MouseControllable};
-use gdk::keys::Key;
-use gdk::keys::constants as key;
-use glib::{IsA, Object, object::Cast};
-use gtk::{prelude::*, Inhibit, ToolButton, Widget};
-use gtk_test::{self, focus, mouse_move, run_loop, wait_for_draw};
+use glib::{IsA, Object};
+use gtk::{prelude::*, Widget};
+use gtk_test::{self, mouse_move, run_loop, wait_for_draw};
 use relm::StreamHandle;
 
-// TODO: should remove the signal after wait()?
-// FIXME: remove when it's in gtk-test.
-macro_rules! gtk_observer_new {
-    ($widget:expr, $signal_name:ident, |$e1:pat $(,$e:pat)*|) => {{
-        let observer = gtk_test::Observer::new();
-        let res = (*observer.get_inner()).clone();
-        $widget.$signal_name(move |$e1 $(,$e:expr)*| {
-            *res.borrow_mut() = true;
-        });
-        observer
-    }};
-    ($widget:expr, $signal_name:ident, |$e1:pat $(,$e:pat)*| $block:block) => {{
-        let observer = gtk_test::Observer::new();
-        let res = (*observer.get_inner()).clone();
-        $widget.$signal_name(move |$e1 $(,$e)*| {
-            *res.borrow_mut() = true;
-            $block
-        });
-        observer
-    }}
-}
-
 pub struct Observer<MSG> {
     result: Rc<RefCell<Option<MSG>>>,
 }
@@ -135,28 +110,6 @@ macro_rules! relm_observer_wait {
     };
 }
 
-// FIXME: remove when it's in gtk-test.
-pub fn click<W: Clone + IsA<Object> + IsA<Widget> + WidgetExt + IsA<W>>(widget: &W) {
-    wait_for_draw(widget, || {
-        let observer =
-            if let Ok(tool_button) = widget.clone().dynamic_cast::<ToolButton>() {
-                gtk_observer_new!(tool_button, connect_clicked, |_|)
-            }
-            else {
-                gtk_observer_new!(widget, connect_button_press_event, |_, _| {
-                    Inhibit(false)
-                })
-            };
-        let allocation = widget.allocation();
-        mouse_move(widget, allocation.width() / 2, allocation.height() / 2);
-        let mut enigo = Enigo::new();
-        enigo.mouse_click(MouseButton::Left);
-        observer.wait();
-
-        wait_for_relm_events();
-    });
-}
-
 pub fn mouse_move_to<W: Clone + IsA<Object> + IsA<Widget> + WidgetExt + IsA<W>>(widget: &W) {
     wait_for_draw(widget, || {
         let allocation = widget.allocation();
@@ -166,86 +119,6 @@ pub fn mouse_move_to<W: Clone + IsA<Object> + IsA<Widget> + WidgetExt + IsA<W>>(
     });
 }
 
-pub fn double_click<W: Clone + IsA<Object> + IsA<Widget> + WidgetExt>(widget: &W) {
-    wait_for_draw(widget, || {
-        let observer = gtk_observer_new!(widget, connect_button_release_event, |_, _| {
-            Inhibit(false)
-        });
-        let allocation = widget.allocation();
-        mouse_move(widget, allocation.width() / 2, allocation.height() / 2);
-        let mut enigo = Enigo::new();
-        enigo.mouse_click(MouseButton::Left);
-        observer.wait();
-
-        let observer = gtk_observer_new!(widget, connect_button_release_event, |_, _| {
-            Inhibit(false)
-        });
-        enigo.mouse_click(MouseButton::Left);
-        observer.wait();
-
-        wait_for_relm_events();
-    });
-}
-
-// FIXME: don't wait the observer for modifier keys like shift?
-pub fn key_press<W: Clone + IsA<Object> + IsA<Widget> + WidgetExt>(widget: &W, key: Key) {
-    wait_for_draw(widget, || {
-        let observer = gtk_observer_new!(widget, connect_key_press_event, |_, _| {
-            Inhibit(false)
-        });
-        focus(widget);
-        let mut enigo = Enigo::new();
-        enigo.key_down(gdk_key_to_enigo_key(key));
-        observer.wait();
-
-        wait_for_relm_events();
-    });
-}
-
-pub fn key_release<W: Clone + IsA<Object> + IsA<Widget> + WidgetExt>(widget: &W, key: Key) {
-    wait_for_draw(widget, || {
-        let observer = gtk_observer_new!(widget, connect_key_release_event, |_, _| {
-            Inhibit(false)
-        });
-        focus(widget);
-        let mut enigo = Enigo::new();
-        enigo.key_up(gdk_key_to_enigo_key(key));
-        observer.wait();
-
-        wait_for_relm_events();
-    });
-}
-
-pub fn enter_key<W: Clone + IsA<Object> + IsA<Widget> + WidgetExt>(widget: &W, key: Key) {
-    wait_for_draw(widget, || {
-        let observer = gtk_observer_new!(widget, connect_key_release_event, |_, _| {
-            Inhibit(false)
-        });
-        focus(widget);
-        let mut enigo = Enigo::new();
-        enigo.key_click(gdk_key_to_enigo_key(key));
-        observer.wait();
-
-        wait_for_relm_events();
-    });
-}
-
-pub fn enter_keys<W: Clone + IsA<Object> + IsA<Widget> + WidgetExt>(widget: &W, text: &str) {
-    wait_for_draw(widget, || {
-        focus(widget);
-        let mut enigo = Enigo::new();
-        for char in text.chars() {
-            let observer = gtk_observer_new!(widget, connect_key_release_event, |_, _| {
-                Inhibit(false)
-            });
-            enigo.key_sequence(&char.to_string());
-            observer.wait();
-        }
-
-        wait_for_relm_events();
-    });
-}
-
 fn wait_for_relm_events() {
     gtk_test::wait(1);
     while gtk::events_pending() {
@@ -253,48 +126,3 @@ fn wait_for_relm_events() {
         gtk_test::wait(1);
     }
 }
-
-fn gdk_key_to_enigo_key(key: Key) -> enigo::Key {
-    use enigo::Key::*;
-    match key {
-        key::Return => Return,
-        key::Tab => Tab,
-        key::space => Space,
-        key::BackSpace => Backspace,
-        key::Escape => Escape,
-        key::Super_L | key::Super_R => Meta,
-        key::Control_L | key::Control_R => Control,
-        key::Shift_L | key::Shift_R => Shift,
-        key::Shift_Lock => CapsLock,
-        key::Alt_L | key::Alt_R => Alt,
-        key::Option => Option,
-        key::End => End,
-        key::Home => Home,
-        key::Page_Down => PageDown,
-        key::Page_Up => PageUp,
-        key::leftarrow => LeftArrow,
-        key::rightarrow => RightArrow,
-        key::downarrow => DownArrow,
-        key::uparrow => UpArrow,
-        key::F1 => F1,
-        key::F2 => F2,
-        key::F3 => F3,
-        key::F4 => F4,
-        key::F5 => F5,
-        key::F6 => F6,
-        key::F7 => F7,
-        key::F8 => F8,
-        key::F9 => F9,
-        key::F10 => F10,
-        key::F11 => F11,
-        key::F12 => F12,
-        _ => {
-            if let Some(char) = key.to_unicode() {
-                Layout(char)
-            }
-            else {
-                Raw(*key as u16)
-            }
-        },
-    }
-}
diff --git a/src/drawing.rs b/src/drawing.rs
index 540a9745..0cffb164 100644
--- a/src/drawing.rs
+++ b/src/drawing.rs
@@ -14,10 +14,8 @@ use cairo::{
     Format,
     ImageSurface,
 };
-use gtk::{
-    Inhibit,
-    prelude::WidgetExt,
-};
+use gtk::prelude::WidgetExt;
+use glib::Propagation;
 
 #[derive(Clone)]
 struct Surface {
@@ -139,7 +137,7 @@ impl<W: Clone + WidgetExt> DrawHandler<W> {
                 eprintln!("Cannot paint: {:?}", error);
             }
 
-            Inhibit(false)
+            Propagation::Proceed
         });
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 5e2997be..dd26cfe1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -120,7 +120,6 @@ pub use glib::{
 pub use glib::translate::{FromGlibPtrNone, IntoGlib, ToGlibPtr};
 #[doc(hidden)]
 pub use gobject_sys::{GParameter, g_object_newv};
-use glib::Continue;
 
 pub use crate::core::{Channel, EventStream, Sender, StreamHandle};
 pub use crate::state::{
@@ -138,6 +137,7 @@ pub use component::Component;
 pub use container::{Container, ContainerComponent, ContainerWidget};
 pub use drawing::DrawHandler;
 pub use widget::{Widget, WidgetTest};
+use glib::ControlFlow;
 
 /// Dummy macro to be used with `#[derive(Widget)]`.
 #[macro_export]
@@ -356,7 +356,7 @@ pub fn interval<F: Fn() -> MSG + 'static, MSG: 'static>(stream: &StreamHandle<MS
     glib::timeout_add_local(std::time::Duration::from_millis(duration as u64), move || {
         let msg = constructor();
         stream.emit(msg);
-        Continue(true)
+        ControlFlow::Continue
     });
 }
 
@@ -366,6 +366,6 @@ pub fn timeout<F: Fn() -> MSG + 'static, MSG: 'static>(stream: &StreamHandle<MSG
     glib::timeout_add_local(std::time::Duration::from_millis(duration as u64), move || {
         let msg = constructor();
         stream.emit(msg);
-        Continue(false)
+        ControlFlow::Continue
     });
 }