adding construction from native bitmaps

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62226 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/graphics.cpp

@@ -1580,6 +1580,9 @@ public :
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap );
 
+    // create a graphics bitmap from a native bitmap
+    virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
+    
     // create a subimage from a native image representation
     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  );
 
@@ -1807,6 +1810,19 @@ wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmap( const wxBitmap &bitmap )
         return wxNullGraphicsBitmap;
 }
 
+wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromNativeBitmap( void *bitmap )
+{
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+    if ( bitmap != NULL )
+    {
+        wxGraphicsBitmap p;
+        p.SetRefData(new wxGDIPlusBitmapData( this , (Bitmap*) bitmap ));
+        return p;
+    }
+    else
+        return wxNullGraphicsBitmap;
+}
+
 wxGraphicsBitmap wxGDIPlusRenderer::CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
 {
     ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);