gtktreeview之 加表格虛線

void                gtk_tree_view_set_grid_lines        (GtkTreeView *tree_view,
                                                         GtkTreeViewGridLines grid_lines);

typedef enum {
  GTK_TREE_VIEW_GRID_LINES_NONE,
  GTK_TREE_VIEW_GRID_LINES_HORIZONTAL,
  GTK_TREE_VIEW_GRID_LINES_VERTICAL,
  GTK_TREE_VIEW_GRID_LINES_BOTH
} GtkTreeViewGridLines;