X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4050e98de9c43a9fa60dffb35202d89d749ba081..f6a25e0866e40e06ddab1b9cfd1d5b4dce39ff8c:/interface/wx/dcbuffer.h?ds=sidebyside

diff --git a/interface/wx/dcbuffer.h b/interface/wx/dcbuffer.h
index c792ec8829..55c61c9483 100644
--- a/interface/wx/dcbuffer.h
+++ b/interface/wx/dcbuffer.h
@@ -67,6 +67,7 @@ public:
     */
     wxBufferedDC(wxDC* dc, const wxSize& area,
                  int style = wxBUFFER_CLIENT_AREA);
+
     /**
         Creates a buffer for the provided dc. Init() must not be called when
         using this constructor.
@@ -86,7 +87,7 @@ public:
             window is buffered, or wxBUFFER_VIRTUAL_AREA to indicate that the
             buffer bitmap covers the virtual area.
     */
-    wxBufferedDC(wxDC* dc, wxBitmap& buffer,
+    wxBufferedDC(wxDC* dc, wxBitmap& buffer = wxNullBitmap,
                  int style = wxBUFFER_CLIENT_AREA);
     //@}
 
@@ -94,7 +95,7 @@ public:
         Copies everything drawn on the DC so far to the underlying DC
         associated with this object, if any.
     */
-    ~wxBufferedDC();
+    virtual ~wxBufferedDC();
 
     //@{
     /**
@@ -103,7 +104,7 @@ public:
     */
     void Init(wxDC* dc, const wxSize& area,
               int style = wxBUFFER_CLIENT_AREA);
-    void Init(wxDC* dc, wxBitmap& buffer,
+    void Init(wxDC* dc, wxBitmap& buffer = wxNullBitmap,
               int style = wxBUFFER_CLIENT_AREA);
     //@}
 };
@@ -185,6 +186,6 @@ public:
         Copies everything drawn on the DC so far to the window associated with
         this object, using a wxPaintDC.
     */
-    ~wxBufferedPaintDC();
+    virtual ~wxBufferedPaintDC();
 };