Subj : Re: BC++5.02 16bits application and folders
To   : borland.public.cpp.borlandcpp
From : "Sebastian Ledesma" <labo(no_sp@m)solidyne1.com>
Date : Fri Feb 27 2004 05:14 pm

Try this, I used it for an old 16bit that runs with other 32bits apps, some
time ago I migrated this application to
Win32, but this function should work right now:

Saludos
Sebastian

PS: Sorry for a litle long post.

#include <windows.h>
#include "longname.h"
#include <stdio.h>
#include <dos.h>
#include <string.h>

#define CF 1

int winRename(const char _FAR *oldname, const char _FAR *newname) {
#if defined WIN32
 return MoveFile(oldname, newname);
#else
 struct REGPACK regs;
 regs.r_ax = 0x7156;
   regs.r_ds = FP_SEG(oldname);
   regs.r_dx = FP_OFF(oldname);
   regs.r_es = FP_SEG(newname);
   regs.r_di = FP_OFF(newname);
   intr(0x21, &regs);
   if (regs.r_flags & CF)
    return regs.r_ax;
   return 0;
#endif

}

BOOL GetDosName(char *longname, char *shortname) {
   WIN32_FIND_DATA fd;
   HANDLE hfind;

   hfind = FindFirstFile(longname, &fd);
   if (hfind == INVALID_HANDLE_VALUE)
    return FALSE;

   if (strlen(fd.cAlternateFileName) > 0)
  strcpy(shortname, fd.cAlternateFileName);
   else
    strcpy(shortname, fd.cFileName);
   FindClose(hfind);
   return TRUE;
}

BOOL GetWindowsName(char *shortname, char *longname) {
   WIN32_FIND_DATA fd;
   HANDLE hfind;

   hfind = FindFirstFile(shortname, &fd);
   if (hfind == INVALID_HANDLE_VALUE)
    return FALSE;

 strcpy(longname, fd.cFileName);
   FindClose(hfind);
   return TRUE;
}

.