dos12.hlp (Table of Contents; Topic list)
DosReallocSeg changes
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MS OS/2 version 1.2 changes
 
If DosReallocSeg is used to reallocate a shared segment to a size smaller
than its original size, the segment must have been created using the
DosAllocSeg function with the SEG_SIZEABLE attribute set. This request can
be issued from ring 2 or ring 3; the segment to be reallocated can be either
a ring-2 or a ring-3 segment.
 
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