\helpref{Layout}{wxwindowlayout} yourself if the parent window is not a
frame, panel or dialog).
-\subsection{Constraint layout: more detail}
+\subsection{Constraint layout: more details}\label{constraintlayoutdetails}
By default, windows do not have a wxLayoutConstraints object. In this case, much layout
must be done explicitly, by performing calculations in OnSize members, except
\subsection{Window layout examples}\label{layoutexamples}
-\subsubsection{Example 1: subwindow layout}
+\subsubsection{Example 1: subwindow layout}\label{subwindowlayoutexample}
This example specifies a panel and a window side by side,
with a text subwindow below it.
frame->text_window->SetConstraints(c3);
\end{verbatim}
-\subsubsection{Example 2: panel item layout}
+\subsubsection{Example 2: panel item layout}\label{panelitemlayoutexample}
This example sizes a button width to 80 percent of the panel width, and centres
it horizontally. A listbox and multitext item are placed below it. The listbox