- HWND hWnd = 0;
- if (m_parent) hWnd = (HWND) m_parent->GetHWND();
- unsigned int msStyle = MB_OK;
- if (m_dialogStyle & wxYES_NO)
- {
- if (m_dialogStyle & wxCANCEL)
- msStyle = MB_YESNOCANCEL;
- else
- msStyle = MB_YESNO;
+ if ( !wxTheApp->GetTopWindow() )
+ {
+ // when the message box is shown from wxApp::OnInit() (i.e. before the
+ // message loop is entered), this must be done or the next message box
+ // will never be shown - just try putting 2 calls to wxMessageBox() in
+ // OnInit() to see it
+ while ( wxTheApp->Pending() )
+ wxTheApp->Dispatch();
+ }
+
+ // use the top level window as parent if none specified
+ if ( !m_parent )
+ m_parent = FindSuitableParent();
+ HWND hWnd = m_parent ? GetHwndOf(m_parent) : NULL;
+
+ // translate wx style in MSW
+ unsigned int msStyle = MB_OK;
+ const long wxStyle = GetMessageDialogStyle();
+ if (wxStyle & wxYES_NO)
+ {
+#if !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
+ if (wxStyle & wxCANCEL)
+ msStyle = MB_YESNOCANCEL;
+ else
+#endif // !(__SMARTPHONE__ && __WXWINCE__)
+ msStyle = MB_YESNO;