diff --git a/src/gtk/display.cpp b/src/gtk/display.cpp
index f51283cd89..e04ca9160d 100644
--- a/src/gtk/display.cpp
+++ b/src/gtk/display.cpp
@@ -26,6 +26,8 @@ GdkWindow* wxGetTopLevelGDK();
 
 //-----------------------------------------------------------------------------
 
+#ifndef __WXGTK4__
+
 #ifdef GDK_WINDOWING_X11
 void wxGetWorkAreaX11(Screen* screen, int& x, int& y, int& width, int& height);
 #endif
@@ -46,6 +48,7 @@ static inline int wx_gdk_screen_get_primary_monitor(GdkScreen* screen)
 static inline void
 wx_gdk_screen_get_monitor_workarea(GdkScreen* screen, int monitor, GdkRectangle* dest)
 {
+    wxGCC_WARNING_SUPPRESS(deprecated-declarations)
 #if GTK_CHECK_VERSION(3,4,0)
     if (gtk_check_version(3,4,0) == NULL)
         gdk_screen_get_monitor_workarea(screen, monitor, dest);
@@ -67,16 +70,27 @@ wx_gdk_screen_get_monitor_workarea(GdkScreen* screen, int monitor, GdkRectangle*
         }
 #endif // GDK_WINDOWING_X11
     }
+    wxGCC_WARNING_RESTORE()
 }
 #define gdk_screen_get_monitor_workarea wx_gdk_screen_get_monitor_workarea
 
+#endif // !__WXGTK4__
+
 void wxClientDisplayRect(int* x, int* y, int* width, int* height)
 {
     GdkRectangle rect;
     GdkWindow* window = wxGetTopLevelGDK();
+#ifdef __WXGTK4__
+    GdkMonitor* monitor =
+        gdk_display_get_monitor_at_window(gdk_window_get_display(window), window);
+    gdk_monitor_get_workarea(monitor, &rect);
+#else
     GdkScreen* screen = gdk_window_get_screen(window);
+    wxGCC_WARNING_SUPPRESS(deprecated-declarations)
     int monitor = gdk_screen_get_monitor_at_window(screen, window);
     gdk_screen_get_monitor_workarea(screen, monitor, &rect);
+    wxGCC_WARNING_RESTORE()
+#endif
     if (x)
         *x = rect.x;
     if (y)
@@ -109,15 +123,25 @@ public:
     virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const wxOVERRIDE;
     virtual wxVideoMode GetCurrentMode() const wxOVERRIDE;
     virtual bool ChangeMode(const wxVideoMode& mode) wxOVERRIDE;
-
+#ifdef __WXGTK4__
+    GdkMonitor* const m_monitor;
+#else
     GdkScreen* const m_screen;
+#endif
 };
+//-----------------------------------------------------------------------------
 
+#ifdef __WXGTK4__
+static inline GdkDisplay* GetDisplay()
+{
+    return gdk_window_get_display(wxGetTopLevelGDK());
+}
+#else
 static inline GdkScreen* GetScreen()
 {
     return gdk_window_get_screen(wxGetTopLevelGDK());
 }
-//-----------------------------------------------------------------------------
+#endif
 
 wxDisplayImpl* wxDisplayFactoryGTK::CreateDisplay(unsigned n)
 {
@@ -126,38 +150,77 @@ wxDisplayImpl* wxDisplayFactoryGTK::CreateDisplay(unsigned n)
 
 unsigned wxDisplayFactoryGTK::GetCount()
 {
+#ifdef __WXGTK4__
+    return gdk_display_get_n_monitors(GetDisplay());
+#else
+    wxGCC_WARNING_SUPPRESS(deprecated-declarations)
     return gdk_screen_get_n_monitors(GetScreen());
+    wxGCC_WARNING_RESTORE()
+#endif
 }
 
 int wxDisplayFactoryGTK::GetFromPoint(const wxPoint& pt)
 {
-    GdkScreen* screen = GetScreen();
-    int monitor = gdk_screen_get_monitor_at_point(screen, pt.x, pt.y);
     GdkRectangle rect;
+#ifdef __WXGTK4__
+    GdkDisplay* display = GetDisplay();
+    GdkMonitor* monitor = gdk_display_get_monitor_at_point(display, pt.x, pt.y);
+    gdk_monitor_get_geometry(monitor, &rect);
+    if (wxRect(rect.x, rect.y, rect.width, rect.height).Contains(pt))
+    {
+        for (unsigned i = gdk_display_get_n_monitors(display); i--;)
+        {
+            if (gdk_display_get_monitor(display, i) == monitor)
+                return i;
+        }
+    }
+    return wxNOT_FOUND;
+#else
+    GdkScreen* screen = GetScreen();
+    wxGCC_WARNING_SUPPRESS(deprecated-declarations)
+    int monitor = gdk_screen_get_monitor_at_point(screen, pt.x, pt.y);
     gdk_screen_get_monitor_geometry(screen, monitor, &rect);
+    wxGCC_WARNING_RESTORE()
     if (!wxRect(rect.x, rect.y, rect.width, rect.height).Contains(pt))
         monitor = wxNOT_FOUND;
     return monitor;
+#endif
 }
 //-----------------------------------------------------------------------------
 
 wxDisplayImplGTK::wxDisplayImplGTK(unsigned i)
     : base_type(i)
+#ifdef __WXGTK4__
+    , m_monitor(gdk_display_get_monitor(GetDisplay(), i))
+#else
     , m_screen(GetScreen())
+#endif
 {
 }
 
 wxRect wxDisplayImplGTK::GetGeometry() const
 {
     GdkRectangle rect;
+#ifdef __WXGTK4__
+    gdk_monitor_get_geometry(m_monitor, &rect);
+#else
+    wxGCC_WARNING_SUPPRESS(deprecated-declarations)
     gdk_screen_get_monitor_geometry(m_screen, m_index, &rect);
+    wxGCC_WARNING_RESTORE()
+#endif
     return wxRect(rect.x, rect.y, rect.width, rect.height);
 }
 
 wxRect wxDisplayImplGTK::GetClientArea() const
 {
     GdkRectangle rect;
+#ifdef __WXGTK4__
+    gdk_monitor_get_workarea(m_monitor, &rect);
+#else
+    wxGCC_WARNING_SUPPRESS(deprecated-declarations)
     gdk_screen_get_monitor_workarea(m_screen, m_index, &rect);
+    wxGCC_WARNING_RESTORE()
+#endif
     return wxRect(rect.x, rect.y, rect.width, rect.height);
 }
 
@@ -168,10 +231,16 @@ wxString wxDisplayImplGTK::GetName() const
 
 bool wxDisplayImplGTK::IsPrimary() const
 {
+#ifdef __WXGTK4__
+    return gdk_monitor_is_primary(m_monitor) != 0;
+#else
+    wxGCC_WARNING_SUPPRESS(deprecated-declarations)
     return gdk_screen_get_primary_monitor(m_screen) == int(m_index);
+    wxGCC_WARNING_RESTORE()
+#endif
 }
 
-#ifdef GDK_WINDOWING_X11
+#if defined(GDK_WINDOWING_X11) && !defined(__WXGTK4__)
 wxArrayVideoModes wxXF86VidMode_GetModes(const wxVideoMode& mode, Display* pDisplay, int nScreen);
 wxVideoMode wxXF86VidMode_GetCurrentMode(Display* display, int nScreen);
 bool wxXF86VidMode_ChangeMode(const wxVideoMode& mode, Display* display, int nScreen);
@@ -181,7 +250,7 @@ wxArrayVideoModes wxX11_GetModes(const wxDisplayImpl* impl, const wxVideoMode& m
 wxArrayVideoModes wxDisplayImplGTK::GetModes(const wxVideoMode& mode) const
 {
     wxArrayVideoModes modes;
-#ifdef GDK_WINDOWING_X11
+#if defined(GDK_WINDOWING_X11) && !defined(__WXGTK4__)
 #ifdef __WXGTK3__
     if (GDK_IS_X11_SCREEN(m_screen))
 #endif
@@ -203,7 +272,7 @@ wxArrayVideoModes wxDisplayImplGTK::GetModes(const wxVideoMode& mode) const
 wxVideoMode wxDisplayImplGTK::GetCurrentMode() const
 {
     wxVideoMode mode;
-#if defined(GDK_WINDOWING_X11) && defined(HAVE_X11_EXTENSIONS_XF86VMODE_H)
+#if defined(GDK_WINDOWING_X11) && defined(HAVE_X11_EXTENSIONS_XF86VMODE_H) && !defined(__WXGTK4__)
 #ifdef __WXGTK3__
     if (GDK_IS_X11_SCREEN(m_screen))
 #endif
@@ -219,7 +288,7 @@ wxVideoMode wxDisplayImplGTK::GetCurrentMode() const
 bool wxDisplayImplGTK::ChangeMode(const wxVideoMode& mode)
 {
     bool success = false;
-#if defined(GDK_WINDOWING_X11) && defined(HAVE_X11_EXTENSIONS_XF86VMODE_H)
+#if defined(GDK_WINDOWING_X11) && defined(HAVE_X11_EXTENSIONS_XF86VMODE_H) && !defined(__WXGTK4__)
 #ifdef __WXGTK3__
     if (GDK_IS_X11_SCREEN(m_screen))
 #endif
@@ -233,6 +302,7 @@ bool wxDisplayImplGTK::ChangeMode(const wxVideoMode& mode)
 #endif
     return success;
 }
+//-----------------------------------------------------------------------------
 
 wxDisplayFactory* wxDisplay::CreateFactory()
 {