HELPLIB.HLB  —  CRTL  mprotect  Arguments
 addr

    The address of the region that you want to modify.

 len

    The length, in bytes, of the region that you want to modify.

 prot

    Access permission, as defined in the <mman.h> header file.
    Specify either PROT_NONE, PROT_READ, or PROT_WRITE.
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