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 09:05 pm

Yes, I assumed he (Dridri) was referencing to a Win16 app., also the
functions allows to rename a file, but not to rename a directory.
In such case I suggest to create a 32 bit program and execute it (the
directory name can be passed in a temp file).

Saludos
Sebastian

"Ed Mulroy [TeamB]" <dont_email_me@bitbuc.ket> escribió en el mensaje
news:403fc39d@newsgroups.borland.com...
> Interrupt 0x21, function 0x7156 is a Windows 95 function for renaming a
> file.  It is not a DOS function.  The DOS functionality built into Windows
> 95 supports it but MSDOS does not support it.  The MSDOS file system does
> not support long file names.  The 12 and 16 bit file attribute table, FAT,
> used by MSDOS do not have the bits which are used as continuation flags
for
> putting the remainder of the file names into subsequent FAT entries.  That
> code may run on a machine with 32 bit Windows 95 installed but it will not
> work with an MSDOS machine.
>
> .  Ed
>
> > Sebastian Ledesma wrote in message
> > news:403fa4e0$1@newsgroups.borland.com...
> >
> > 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;
> > }
>
>

.