hab (HAB) - input

      Anchor-block handle.

    prcl (PRECTL) - in/out

      Rectangle to be expanded.

      Note: The value of each field in this structure must be in the range -32 768 through 32 767. The data type WRECT can also be used, if supported by the language.

    cx (LONG) - input

      Horizontal expansion.

    cy (LONG) - input

      Vertical expansion.

    rc (BOOL) - returns

      Success indicator.

      TRUE

        Successful completion
      FALSE
        Error occurred.

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