\section{\class{wxMemoryDC}}\label{wxmemorydc}
A memory device context provides a means to draw graphics onto a bitmap. When
-drawing in to a mono-bitmap, using {\tt wxWHITE}, {\tt wxWHITE_PEN} and {\tt wxWHITE_BRUSH}
+drawing in to a mono-bitmap, using {\tt wxWHITE}, {\tt wxWHITE\_PEN} and
+{\tt wxWHITE\_BRUSH}
will draw the background colour (i.e. 0) whereas all other colours will draw the
foreground colour (i.e. 1).
Constructs a new memory device context.
Use the {\it Ok} member to test whether the constructor was successful
-in creating a useable device context. Don't forget to select a bitmap
+in creating a usable device context. Don't forget to select a bitmap
into the DC before drawing on it.
\membersection{wxMemoryDC::SelectObject}