a bit more docs

[wxWidgets.git] / docs / latex / wx / pen.tex

diff --git a/docs/latex/wx/pen.tex b/docs/latex/wx/pen.tex
index 2022597217a5919906f87599e1b136bbf1844cbb..5a369a34245e3463bec4e4056241d174451d1a19 100644 (file)
--- a/docs/latex/wx/pen.tex
+++ b/docs/latex/wx/pen.tex
@@ -20,6 +20,12 @@ get a pointer to a pen by using the global list of pens {\bf
 wxThePenList}, and calling the member function {\bf FindOrCreatePen}.
 See the entry for \helpref{wxPenList}{wxpenlist}.
 
+wxPen uses a reference counting system, so assignments between brushes are very
+cheap. You can therefore use actual wxPen objects instead of pointers without
+efficiency problems. Once one wxPen object changes its data it will create its
+own pen data internally so that other pens, which previously shared the
+data using the reference counting, are not affected.
+
 TODO: an overview for wxPen.
 
 \wxheading{See also}