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The constraint on this rubberbander.
[Visual Basic .NET] Public Property Constraint As esriLineConstraints
[C#] public esriLineConstraints Constraint {get; set;}
[C++]
HRESULT get_Constraint(
  esriLineConstraints* constrain
);
[C++]
HRESULT put_Constraint(
  esriLineConstraints constrain
);
[C++] Parameters constrain [out, retval]
constrain is a parameter of type esriLineConstraints* constrain [in]
constrain is a parameter of type esriLineConstraints