HelpPC 2.10	Quick Reference Utility	Copyright 1991 David Jurgens
MSC: unsigned _dos_setblock( unsigned size, unsigned seg,                                        unsigned *maxsize )        - prototype in dos.h        - size = new block size        - seg = segment of DOS memory block to change        - maxsize = size of buffer actually allocated if size not available        - returns 0 on success or DOS error code on failure        - Turbo C uses setblock()        - see   INT 21,4A   _dos_allocmem()   _dos_freemem()
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