c_gtk_tree_view_get_path_at_pos

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
int function(GtkTreeView* treeView, int x, int y, GtkTreePath** path, GtkTreeViewColumn** column, int* cellX, int* cellY) c_gtk_tree_view_get_path_at_pos;

Meta