HelpPC 2.10	Quick Reference Utility	Copyright 1991 David Jurgens
MSC: unsigned _dos_getdiskfree(unsigned drv,struct diskfree_t *spc)        - prototype in dos.h        - drive =  1 = A:, 2 = B:, 3 = C:, ...        - spc = structure to contains disk status information        - returns 0 on success or DOS error code on failure        struct diskfree_t           {           unsigned total_clusters;             - count of all disk clusters           unsigned avail_clusters;             - free unallocated clusters           unsigned sectors_per_cluster;           unsigned bytes_per_sector;           };        - Turbo C uses getdfree()        - see   INT 21,36
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