X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4050e98de9c43a9fa60dffb35202d89d749ba081..d50fc4dc6d4832d4678c6e99085198cafaeabb9a:/interface/wx/dcbuffer.h

diff --git a/interface/wx/dcbuffer.h b/interface/wx/dcbuffer.h
index c792ec8829..ec2bb28d70 100644
--- a/interface/wx/dcbuffer.h
+++ b/interface/wx/dcbuffer.h
@@ -3,7 +3,7 @@
 // Purpose:     interface of wxBufferedDC
 // Author:      wxWidgets team
 // RCS-ID:      $Id$
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 /**
@@ -48,7 +48,6 @@ public:
     */
     wxBufferedDC();
 
-    //@{
     /**
         Creates a buffer for the provided @a dc. Init() must not be called when
         using this constructor.
@@ -67,6 +66,7 @@ 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.
@@ -86,15 +86,14 @@ 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);
-    //@}
 
     /**
         Copies everything drawn on the DC so far to the underlying DC
         associated with this object, if any.
     */
-    ~wxBufferedDC();
+    virtual ~wxBufferedDC();
 
     //@{
     /**
@@ -103,7 +102,7 @@ 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);
     //@}
 };
@@ -121,7 +120,7 @@ public:
 
     The difference between wxBufferedPaintDC and this class is that this class
     won't double-buffer on platforms which have native double-buffering
-    already, avoiding any unneccessary buffering to avoid flicker.
+    already, avoiding any unnecessary buffering to avoid flicker.
 
     wxAutoBufferedPaintDC is simply a typedef of wxPaintDC on platforms that
     have native double-buffering, otherwise, it is a typedef of
@@ -185,6 +184,6 @@ public:
         Copies everything drawn on the DC so far to the window associated with
         this object, using a wxPaintDC.
     */
-    ~wxBufferedPaintDC();
+    virtual ~wxBufferedPaintDC();
 };