diff --git a/lcl/interfaces/gtk2/gtk2widgetset.inc b/lcl/interfaces/gtk2/gtk2widgetset.inc
index 40deea6b3b..9b0ba2eee8 100644
--- a/lcl/interfaces/gtk2/gtk2widgetset.inc
+++ b/lcl/interfaces/gtk2/gtk2widgetset.inc
@@ -783,9 +783,8 @@ begin
     LM_SYSKEYDOWN,
     LM_SYSKEYUP:
     begin
-      if (ALCLObject is TCustomComboBox) then
-        ConnectKeyPressReleaseEvents(PgtkObject(PgtkCombo(gObject)^.entry))
-      else if (ALCLObject is TCustomForm) then
+      if ((ALCLObject is TCustomComboBox) and gtk_is_combo_box_entry(gObject))
+      or (ALCLObject is TCustomForm) then
         ConnectKeyPressReleaseEvents(gObject);
 
       ConnectKeyPressReleaseEvents(gCore);
diff --git a/lcl/interfaces/gtk2/gtk2wsstdctrls.pp b/lcl/interfaces/gtk2/gtk2wsstdctrls.pp
index 51f901f853..ea08ab1a4f 100644
--- a/lcl/interfaces/gtk2/gtk2wsstdctrls.pp
+++ b/lcl/interfaces/gtk2/gtk2wsstdctrls.pp
@@ -1668,6 +1668,9 @@ begin
   else
     InputObject := AGtkObject;
 
+  Gtk2WidgetSet.SetCallbackDirect(LM_KEYDOWN, InputObject, AWinControl);
+  Gtk2WidgetSet.SetCallbackDirect(LM_KEYUP, InputObject, AWinControl);
+  Gtk2WidgetSet.SetCallbackDirect(LM_CHAR, InputObject, AWinControl);
   Gtk2WidgetSet.SetCallbackDirect(LM_MOUSEMOVE, InputObject, AWinControl);
   Gtk2WidgetSet.SetCallbackDirect(LM_LBUTTONDOWN, InputObject, AWinControl);
   Gtk2WidgetSet.SetCallbackDirect(LM_LBUTTONUP, InputObject, AWinControl);
@@ -1684,6 +1687,9 @@ begin
 
   // And now the same for the Button in the combo
   if AButton<>nil then begin
+    Gtk2WidgetSet.SetCallbackDirect(LM_KEYDOWN, AButton, AWinControl);
+    Gtk2WidgetSet.SetCallbackDirect(LM_KEYUP, AButton, AWinControl);
+    Gtk2WidgetSet.SetCallbackDirect(LM_CHAR, AButton, AWinControl);
     if not GtkWidgetIsA(PGtkWidget(AButton),GTK_TYPE_CELL_VIEW) then begin
       Gtk2WidgetSet.SetCallbackDirect(LM_MOUSEENTER, AButton, AWinControl);
       Gtk2WidgetSet.SetCallbackDirect(LM_MOUSELEAVE, AButton, AWinControl);
@@ -2091,7 +2097,7 @@ begin
     Entry := GTK_BIN(WidgetInfo^.CoreWidget)^.child;
     Result:=GTK_WIDGET_CAN_FOCUS(Entry);
   end else begin
-    Result:=GTK_WIDGET_CAN_FOCUS(WidgetInfo^.CoreWidget);
+    Result:=inherited CanFocus(AWinControl);
   end;
   //DebugLn(['TGtk2WSCustomComboBox.CanFocus ',dbgsName(AWinControl),' ',gtk_is_combo_box_entry(WidgetInfo^.CoreWidget),' Result=',Result]);
 end;