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-
- INTRODUCTION
- ------------
- FSTAMP.DLL - A small DLL to allow you to change the date and time stamp of
- a file from VB or C/C++.
-
- FSTAMP is FREEWARE, but remains the copyrighted material of Richard A.
- Esterling, All Rights Reserved, 1994. Everything else is probably the
- copyrighted material of someone else.
-
- Said author is not responsible for much of anything; certainly nothing
- having anything to do with YOUR computer.
-
-
-
- HISTORY
- -------
- Ver 0.02 - Previous version was written in Borland C++ 3.1 using
- setftime function. This function (or my coding of it) did not seem to
- like double-digit months; i.e., 11 and 12. It also kept confusing AM
- with PM and would yeild results like 18:00 am. Not knowing if this was
- a problem with SmartDrv and setftime or what, I scrapped the Borland
- version and rewrote the DLL in Visual C++ 1.0. Since VC++ has no
- similar function, I now use a REGS union and invoke DOS service
- 21h/57h using the int86() function. To top it off, the DLL ended up
- about half the size it was when compiled and linked under Borland.
-
- Ver 0.01 - Initial release.
-
-
-
- COMPATIBILITY
- -------------
- As far as I know, FSTAMP.DLL is only compatible with DOS-based systems
- (running Windows) since a low-level DOS service is utilized to set any
- given file's date and time stamp. If someone discovers information to the
- contrary, I'd appreciate being notified just for curiosity's sake. This
- DLL should work with DOS 2.0 and above, Windows 3.0 or Windows 3.1.
-
-
-
- INSTALLATION
- ------------
- Copy FSTAMP.DLL to your Windows subdirectory, or into the same directory
- from which you will be executing your program.
-
-
-
- USAGE
- -----
- The declaration/prototype:
-
- For VB:
- Declare Function FileStamp% lib "FSTAMP.DLL" (ByVal FileName$,ByVal
- NewDate$, ByVal NewTime$)
-
- For C/C++:
- int FileStamp(LPSTR fileName, LPSTR newDate, LPSTR newTime);
-
- where:
- "fileName" is any valid path\filename of the file that is to be changed.
- "newDate" is a valid date. This parameter MUST be eight characters
- in width. In other words, do not omit 0's. "1/1/94" is NOT a
- valid date; "01/01/94" is. The date you specify must be later
- than 1980. What character you use to separate the numbers does
- not matter (01-01-91 = 01/01/91 = 01.91.91 = 01 01 91)
- "newTime" is a valid time. This parameter MUST be eight characters
- is width. In other words, do not omit 0's. "8:15" is NOT a valid
- time; "08:15:00" is. Note that the time must be specified in
- military time. Also, while you are allowed to specify an odd
- number of seconds, DOS only uses even numbers to record the
- seconds of a filename, so your seconds will be rounded down to the
- nearest even number. What character you use to separate the
- numbers does not matter (10:15:00 = 10-15-00 = 10 15 00)
-
-
-
- RETURN CODES
- ------------
- FileStamp will return 1 out of 6 possible return codes:
-
- 0 - No detectable error occurred
- 1 - newDate variable does not contain eight characters
- 2 - newTime variable does not contain eight characters
- 3 - Specified file could not be opened
- 4 - Internal function call to commit date/time change failed
- 5 - Specified file could not be closed
-
- The errors are listed in "natural" order; i.e., the order in which they
- occur. Therefore, an error of 5, while hard to fathom, indicates that
- everything else was successful except for the actual closing of the file.
-
-
-
- EXAMPLE
- -------
- This zip contains an internal zip file called EXAMPLE.ZIP. Unzip this file
- and load FILESTMP.MAK into VB for a functional example of how to implement
- FSTAMP.DLL with your VB program. Or, you can just execute FILESTMP.EXE to
- see it run. This zip file also contains the latest version (at the time of
- this writing) of THREED.VBX (07/16/93) since the example utiltizes some 3D
- panels from this VBX.
-
-
-
- FEEDBACK
- --------
- I threw this together in one sitting with very little testing because I
- knew someone was waiting on it. If you have suggestions or would like
- enhancements, please let me know using one of the methods described below.
- You might have to wait a week or two, but the price is right <g>.
-
-
-
- ABOUT THE AUTHOR
- ----------------
- I'm Rick Esterling, a computer scientist for Boeing Information Services
- contracted to NASA at Marshall Space Flight Center. I can be reached at:
-
- Rick Esterling
- Three Cruse Alley
- Huntsville, AL 35801
- 205-536-8568
-
- Internet: esterra@widget.msfc.nasa.gov
- CIS: 73322,702
-
-