Refreshing the control flow graph displays the graph as if you were opening the Control Flow Graph window. The display shows the control flow graph at the top level. All marking is removed, and all nodes are collapsed to the maximum, so that only program entry nodes and unresolved nodes are displayed. The current node (or its collapsed equivalent) remains current.

Redoing the control flow graph displays the graph with the current structure. All the nodes that were displayed in the control flow graph before the graph was "redone" are displayed in the graph afterwards. The graph is displayed zoomed to the minimum magnification, which means that the entire graph is displayed in the control flow graph area. All marking is retained, as is the currently selected node.

In either case, the display or non-display of return arcs is maintained.

Alternatively, click the Refresh icon, or right-click the white area of the graph, and from the pop-up menu, click Refresh.

Alternatively, click the Redo icon.

See also Working with the control flow graph