\func{wxSize}{CalcMin}{\void}
This method is abstract and has to be overwritten by any derived class.
-Here, the sizer will do the actual calculation of its children minimal sizes.
+Here, the sizer will do the actual calculation of its children's minimal sizes.
\membersection{wxSizer::Clear}\label{wxsizerclear}
Returns pointer to item or NULL.
+\membersection{wxSizer::GetItemById}\label{wxsizergetitembyid}
+
+\func{wxSizerItem *}{GetItemById}{\param{int }{id}, \param{bool }{recursive = false}}
+
+Finds item of the sizer which has the given \arg{id}. This \arg{id} is not the
+window id but the id of the wxSizerItem itself. This is mainly useful for
+retrieving the sizers created from XRC resources.
+
+Use parameter \arg{recursive} to search in subsizers too.
+
+Returns pointer to item or \NULL.
+
\membersection{wxSizer::GetSize}\label{wxsizergetsize}