OffSet (ULONG) - input

Offset into the LVB.

Starting offset, within the LVB, where the update to the screen is to start.

Length (ULONG) - input

Length of the area to be updated to the screen.

VioHandle (HVIO) - input

VIO presentation-space handle.

This must be 0, unless the caller is a Presentation Manager application; in this case, it must be the value returned by VioCreatePS.

rc (APIRET) - returns

Return code

Return code descriptions are:

• NO_ERROR 355
  ERROR_VIO_MODE
  421
  ERROR_VIO_INVALID_PARMS
  430
  ERROR_VIO_ILLEGAL_DURING_POPUP
  436
  ERROR_VIO_INVALID_HANDLE

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