There may be multiple MDI parent frames in a single application, but this probably only makes sense
within programming development environments.
-Child frames may be either \helpref{wxMDIChildFrame}{wxmdichildframe}, or \helpref{wxFrame}{wxframe}.
+Child frames may be of class \helpref{wxMDIChildFrame}{wxmdichildframe} (contained
+within the parent frame) or \helpref{wxFrame}{wxframe} (shown as a top-level frame).
An MDI parent frame always has a \helpref{wxMDIClientWindow}{wxmdiclientwindow} associated with it, which
is the parent for MDI client frames.
-This client window may be resized to accomodate non-MDI windows, as seen in Microsoft Visual C++ (TM) and
+This client window may be resized to accommodate non-MDI windows, as seen in Microsoft Visual C++ (TM) and
Microsoft Publisher (TM), where a documentation window is placed to one side of the workspace.
MDI remains popular despite dire warnings from Microsoft itself that MDI is an obsolete
\helpref{wxMDIParentFrame::GetToolBar}{wxmdiparentframegettoolbar},\rtfsp
\helpref{wxMDIParentFrame::SetToolBar}{wxmdiparentframesettoolbar},\rtfsp
-\helpref{wxWindow}{wxwindowonsize},\rtfsp
\helpref{wxMDIClientWindow}{wxmdiclientwindow}
\func{virtual wxMDIClientWindow*}{OnCreateClient}{\void}
-Override this to return a different kind of client window.
+Override this to return a different kind of client window. If you override this function,
+you must create your parent frame in two stages, or your function will never be called,
+due to the way C++ treats virtual functions called from constructors. For example:
+
+\begin{verbatim}
+ frame = new MyParentFrame;
+ frame->Create(parent, myParentFrameId, wxT("My Parent Frame"));
+\end{verbatim}
\wxheading{Remarks}
Note that it is probably impossible to have a client window that scrolls as well as painting
a bitmap or pattern, since in {\bf OnScroll}, the scrollbar positions always return zero.
-(Solutions to: \verb$julian.smart@ukonline.co.uk$).
+(Solutions to: {\tt julian.smart@btopenworld.com}).
\wxheading{See also}