1. added wxEvtHandler::SafelyProcessEvent() and wxWindow::HandleWindowEvent() to correctly handle exceptions in even handlers in wxGTK

2. use HandleWindowEvent() everywhere as more obvious and convenient shortcut for GetEventHandler()->ProcessEvent(); also for consistency with wxGTK where it's required

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50329 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/dirdlg.cpp

@@ -49,7 +49,7 @@ static void gtk_dirdialog_ok_callback(GtkWidget *widget, wxDirDialog *dialog)
 
     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK);
     event.SetEventObject(dialog);
-    dialog->GetEventHandler()->ProcessEvent(event);
+    dialog->HandleWindowEvent(event);
 }
 }
 
@@ -63,7 +63,7 @@ static void gtk_dirdialog_cancel_callback(GtkWidget *WXUNUSED(w),
 {
     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
     event.SetEventObject(dialog);
-    dialog->GetEventHandler()->ProcessEvent(event);
+    dialog->HandleWindowEvent(event);
 }
 }