C Language and Libraries Help (clang.hlp) (Table of Contents; Topic list)
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_dos_setftime
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─────Run-Time Library───────────────────────────────────────────────────────
 
     The _dos_setftime routine uses system call 0x57 to set the date
     and time at which the file identified by <handle> was last written
     to. Those values appear in the DOS date and time format.
     See: DOS Time/Date Format
 
     Return Value
 
     If successful, the function returns 0. Otherwise, it returns the
     DOS error code and sets errno to EBADF, indicating that an invalid
     file handle was passed.
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