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Describes magnetic variance.
[Visual Basic .NET]
Public Sub New ( _
   magneticVariance As Double,
   magVarValid As Short
)
[C#]
public esriGpsMagneticVariance {
   double magneticVariance,
   short magVarValid
)
[C++]
typedef struct esriGpsMagneticVariance { } esriGpsMagneticVariance;