fsScrollDirection (USHORT)

      Scroll direction.

      Direction in which to scroll the container window.

      CMA_VERTICAL

        Scroll vertically.
      CMA_HORIZONTAL
        Scroll horizontally.

      lScrollInc (LONG)

        Scroll increment.

        Amount (in pixels) by which to scroll the window.

      rc (BOOL)

        Success indicator.

        TRUE

          Successful completion
        FALSE
          An error occurred. The WinGetLastError function may return the following error:
            PMERR_INVALID_PARAMETERS.

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