// For efficiency, tell wxGenericDragImage to use a bitmap that's already
// created (e.g. from last drag)
void SetBackingBitmap(wxBitmap* bitmap) {
-#if !wxHAS_NATIVE_OVERLAY
+#ifndef wxHAS_NATIVE_OVERLAY
m_pBackingBitmap = bitmap;
#endif
}
wxWindow* m_window;
wxDC* m_windowDC;
-#if wxHAS_NATIVE_OVERLAY
+#ifdef wxHAS_NATIVE_OVERLAY
wxOverlay m_overlay;
wxDCOverlay* m_dcOverlay;
#else