set m_isBeingDeleted to true (only) in SendDestroyEvent(); call it as early as possible during the window destruction to ensure that destroy event handlers can still access the full window object

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58246 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/univ/dialog.cpp

@@ -53,8 +53,6 @@ void wxDialog::Init()
 
 wxDialog::~wxDialog()
 {
-    m_isBeingDeleted = true;
-
     // if the dialog is modal, this will end its event loop
     Show(false);