ulDetentId (ULONG)

      Detent ID.

      Unique detent identifier, which indicates the position to be returned.

    ulReserved (ULONG)

      Reserved value, should be 0.

    usDetentPos (USHORT)

      Detent position.

      Number of pixels the detent is positioned from home.

      >= 0

        Number of pixels the detent is positioned from home.
      SLDERR_INVALID_PARAMETERS
        An error occurred. The WinGetLastError function may return the following error:

          PMERR_INVALID_PARAMETERS.

        fDetentLocation (USHORT)

          Scale.

          The scale along which the detent is located. One of the following:

          SMA_SCALE1

            Detent position is along scale 1.
          SMA_SCALE2
            Detent position is along scale 2.

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