\section{\class{wxRegion}}\label{wxregion}
-A wxRegion represents a simple or complex region on a device context or window. It uses
-reference counting, so copying and assignment operations are fast.
+A wxRegion represents a simple or complex region on a device context or window.
+
+This class uses \helpref{reference counting and copy-on-write}{trefcount}
+internally so that assignments between two instances of this class are very
+cheap. You can therefore use actual objects instead of pointers without
+efficiency problems. If an instance of this class is changed it will create
+its own data internally so that other instances, which previously shared the
+data using the reference counting, are not affected.
\wxheading{Derived from}
<wx/region.h>
+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+
\wxheading{See also}
\helpref{wxRegionIterator}{wxregioniterator}
<wx/region.h>
+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+
\wxheading{See also}
\helpref{wxPaintEvent}{wxpaintevent}