\membersection{wxMemoryDC::wxMemoryDC}\label{wxmemorydcctor}
-\func{}{wxMemoryDC}{\void}
+\func{}{wxMemoryDC}{\param{const wxBitmap\& }{bitmap = wxNullBitmap}}
Constructs a new memory device context.
Use the {\it Ok} member to test whether the constructor was successful
-in creating a usable device context. Don't forget to select a bitmap
-into the DC before drawing on it.
+in creating a usable device context. If you don't pass a valid bitmap
+to the constructor, don't forget to select a bitmap into the DC before
+drawing on it.
\membersection{wxMemoryDC::SelectObject}\label{wxmemorydcselectobject}