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OvrSetBuf procedure
DECLARATION: OvrSetBuf(BufferSize : LongInt)
PURPOSE: Sets the size of the overlay buffer
UNIT: Overlay
REMARKS: The value of BufferSize must be as large as, or larger than,
the initial size of the overlay buffer. It must also be less
than or equal to MemAvail + OvrGetBuf.
OvrSetBuf requires that the heap be empty. If any dynamic
variables have allocated using New or GetMem, an error will
occur. The procedure InitGraph (from the Graph Unit) will
allocate memory on the heap, so be sure to call OvrSetBuf
first.
Errors are reported through OvrResult; See the error
messages section for details about OvrResult.
See Also:
OvrGetBuf
OvrInit
OvrInitEMS
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