--- /dev/null
+#ifndef __CONTROL_DATA__
+#define __CONTROL_DATA__
+
+typedef struct _GtkMathViewControlData
+{
+ gboolean semantic_selection;
+ GdomeElement* first_selected;
+ GdomeElement* root_selected;
+ GtkMathView *math_view;
+} GtkMathViewControlData;
+
+#endif