+Returns the selection, or an invalid item if there is no selection.
+This function only works with the controls without wxTR\_MULTIPLE style, use
+\helpref{GetSelections}{wxtreectrlgetselections} for the controls which do have
+this style.
+
+\membersection{wxTreeCtrl::GetSelections}\label{wxtreectrlgetselections}
+
+\constfunc{size\_t}{GetSelections}{\param{wxArrayTreeItemIds\& }{selection}}
+
+Fills the array of tree items passed in with the currently selected items. This
+function can be called only if the control has the wxTR\_MULTIPLE style.
+
+Returns the number of selected items.
+
+\pythonnote{The wxPython version of this method accepts no parameters
+and returns a Python list of {\tt wxTreeItemId}'s.}
+
+\membersection{wxTreeCtrl::GetStateImageList}\label{wxtreectrlgetstateimagelist}
+
+\constfunc{wxImageList*}{GetStateImageList}{\void}
+
+Returns the state image list (from which application-defined state images are taken).