fMetric (USHORT)

      Units of measurement.

      Unit or units of measurement that are to be set for the value set control. This can be either of the following:

      VMA_ITEMSIZE

        If this message attribute is set, the width and height of each item is set using the values of the usItemWidth and usItemHeight parameters, respectively.
      VMA_ITEMSPACING
        If this message attribute is set, the horizontal and vertical spacing between each item is set using the values of the usHorzItemSpacing and usVertItemSpacing parameters, respectively.


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