Add wxTEST_DIALOG for testing of modal dialogs.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72837 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/dirdlg.cpp

@@ -30,6 +30,7 @@
     (defined(__HANDHELDPC__) && (_WIN32_WCE >= 500)))
 
 #include "wx/dirdlg.h"
+#include "wx/testing.h"
 
 #ifndef WX_PRECOMP
     #include "wx/utils.h"
@@ -220,6 +221,8 @@ void wxDirDialog::SetPath(const wxString& path)
 
 int wxDirDialog::ShowModal()
 {
+    WX_TESTING_SHOW_MODAL_HOOK();
+
     wxWindow* const parent = GetParent();
     WXHWND hWndParent = parent ? GetHwndOf(parent) : NULL;