move the grid-specific workaround for scrollbar hysteresis to wxScrollHelper itself...

[wxWidgets.git] / include / wx / generic / dragimgg.h

diff --git a/include/wx/generic/dragimgg.h b/include/wx/generic/dragimgg.h
index 18b984d6d74d8cc405385c31a58db3d45f3da243..7c1c72a239fa6d35a45b47d3852f585a9657fcd2 100644 (file)
--- a/include/wx/generic/dragimgg.h
+++ b/include/wx/generic/dragimgg.h
@@ -88,7 +88,7 @@
  * wxGenericDragImage
  */
 
-class WXDLLEXPORT wxGenericDragImage: public wxObject
+class WXDLLIMPEXP_CORE wxGenericDragImage: public wxObject
 {
 public:
 
@@ -157,13 +157,14 @@ public:
     // Attributes
     ////////////////////////////////////////////////////////////////////////////
 
+#ifdef wxHAS_NATIVE_OVERLAY
+    // backing store is not used when native overlays are
+    void SetBackingBitmap(wxBitmap* WXUNUSED(bitmap)) { }
+#else
     // 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
-        m_pBackingBitmap = bitmap; 
-#endif
-    }
+    void SetBackingBitmap(wxBitmap* bitmap) { m_pBackingBitmap = bitmap; }
+#endif // wxHAS_NATIVE_OVERLAY/!wxHAS_NATIVE_OVERLAY
 
     // Operations
     ////////////////////////////////////////////////////////////////////////////
@@ -247,7 +248,7 @@ protected:
     wxWindow*       m_window;
     wxDC*           m_windowDC;
 
-#if wxHAS_NATIVE_OVERLAY
+#ifdef wxHAS_NATIVE_OVERLAY
     wxOverlay       m_overlay;
     wxDCOverlay*     m_dcOverlay;
 #else