black now denotes 0 on mono-bitmaps.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5419 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/dc.tex

@@ -174,6 +174,11 @@ The arc is drawn in an anticlockwise direction from the start point to the end p
 Draw a bitmap on the device context at the specified point. If {\it transparent} is TRUE and the bitmap has
 a transparency mask, the bitmap will be drawn transparently.
 
+When drawing a mono-bitmap, the current text foreground colour will be used to draw the foreground
+of the bitmap (all bit set to 1), and the current text background colour to draw the background
+(all bits set 0). See also \helpref{SetTextForeground}{wxwindowsettextforeground},
+ \helpref{SetTextForeground}{wxwindowsettextforeground} and \helpref{wxMemoryDC}{wxmemorydc}.
+
 \membersection{wxDC::DrawEllipse}\label{wxdcdrawellipse}
 
 \func{void}{DrawEllipse}{\param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{wxCoord}{ width}, \param{wxCoord}{ height}}

docs/latex/wx/memorydc.tex

@@ -1,6 +1,9 @@
 \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}