Rolls the command back.
Namespace:
Aurigma.GraphicsMill.AjaxControls.VectorObjects.RedoUndo
Assembly:
Aurigma.GraphicsMill.AjaxControls.VectorObjects (in Aurigma.GraphicsMill.AjaxControls.dll)
function unExecute(canvas);
Type: Aurigma.GraphicsMill.AjaxControls.VectorObjects..Canvas
The canvas to roll the command back.