\section{\class{wxMemoryDC}}\label{wxmemorydc}
-A memory device context provides a means to draw graphics onto a bitmap.
+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}
+will draw the background colour (i.e. 0) whereas all other colours will draw the
+foreground colour (i.e. 1).
\wxheading{Derived from}
\helpref{wxDC}{wxdc}\\
\helpref{wxObject}{wxobject}
+\wxheading{Include files}
+
+<wx/dcmemory.h>
+
\wxheading{Remarks}
A bitmap must be selected into the new memory DC before it may be used
Selects the given bitmap into the device context, to use as the memory
bitmap. Selecting the bitmap into a memory DC allows you to draw into
the DC (and therefore the bitmap) and also to use {\bf Blit} to copy
-the bitmap to a canvas. For this purpose, you may find \helpref{wxDC::DrawIcon}{wxdcdrawicon}\rtfsp
+the bitmap to a window. For this purpose, you may find \helpref{wxDC::DrawIcon}{wxdcdrawicon}\rtfsp
easier to use instead.
If the argument is wxNullBitmap (or some other uninitialised wxBitmap) the current bitmap is selected out of the device