adding new constructor for best dc-compatibility of bitmaps

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74241 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/core/bitmap.cpp

@@ -939,6 +939,11 @@ wxBitmap::wxBitmap(const void* data, wxBitmapType type, int width, int height, i
     (void) Create(data, type, width, height, depth);
 }
 
+wxBitmap::wxBitmap(int width, int height, const wxDC& WXUNUSED(dc))
+{
+    (void) Create(width, height);
+}
+
 wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type)
 {
     LoadFile(filename, type);
@@ -1113,7 +1118,6 @@ bool wxBitmap::Create(int w, int h, int d)
     return M_BITMAPDATA->IsOk() ;
 }
 
-
 bool wxBitmap::Create(CGImageRef image)
 {
     UnRef();