Better conditions within dialogs sample.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@27922 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/dialogs/dialogs.h

@@ -54,6 +54,8 @@ public:
     wxColour     m_canvasTextColour;
 };
 
+#if USE_MODAL_PRESENTATION
+
 // A custom modeless dialog
 class MyModelessDialog : public wxDialog
 {
@@ -83,6 +85,8 @@ private:
     DECLARE_EVENT_TABLE()
 };
 
+#endif // USE_MODAL_PRESENTATION
+
 // Define a new frame type
 class MyFrame: public wxFrame
 {