2.13 Undo and redo

4D CAD implements single undo and redo. You can

• Choose Undo in the Edit menu or press command-z to undo the last action
• Choose Redo in the Edit menu or press command-z to redo it afterwards.

Special considerations

• Undo and redo restore the zoom box, the drawing size and the clip box
• 4D CAD does not implement undo and redo for cut and paste. You can paste and cut to undo and redo these actions
• Selecting objects is not an undoable action, nor does it affect the undo state
• DemoCAD does not implement undo and redo for application dialogs.

Programming
See Undo handling.

Methods
CADGetOnEvent, CADSetOnEvent, CADGetUndoPrefs, CADSetUndoPrefs, CADTriggerUndo, CADResetUndo.