Q96368: How to Encrypt a Program with a Password

Article: Q96368
Product(s): Microsoft Fox Miscellaneous Products
Version(s): MACINTOSH:2.01
Operating System(s): 
Keyword(s): 
Last Modified: 22-OCT-1999

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The information in this article applies to:

- Microsoft FoxBASE+ for Macintosh, version 2.01 
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SUMMARY
=======

Password protection can be included with an application. The following code
snippet is an example of a password routine that displays a " * " in place of
the characters being typed. It also gives a time limit of 15 seconds to type in
the correct password. The password in this program is "password".

MORE INFORMATION
================

WARNING: ANY USE BY YOU OF THE CODE PROVIDED IN THIS ARTICLE IS AT YOUR OWN
RISK. Microsoft provides this code "as is" without warranty of any kind, either
expressed or implied, including but not limited to the implied warranties of
merchantability and/or fitness for a particular purpose.

     ON ESCAPE
     SET TALK OFF
     SCREEN 1 TOP HEADING "Log in" FIXED SIZE 10,50 AT 0,0

     PASSWORD = SPACE(10)
     STARTTIME = VAL(SYS(2))
     ENDTIME = STARTTIME + 15

     DO WHILE PASSWORD # "password"
        CLEAR
        PASSWORD = SPACE(10)
        PW = SPACE(1)
        @ 5,13 SAY "Password: "
        X=1
        PW=-1
        @ 2,16 SAY "Seconds to type your password."
        STARTPOS=23
        @ 8,12 SAY "press return when done"
           DO WHILE PW # 13 .AND. VAL(SYS(2)) < ENDTIME
              PW=INKEY(.75)
              IF PW > 32 .AND. PW < 127
                 @ 5,STARTPOS SAY "*"
                 STARTPOS = STARTPOS+1
                 PASSWORD = STUFF(PASSWORD,X,1,CHR(PW))
                 X=X+1
              ENDIF
              @ 2,13 SAY RIGHT(STR(ENDTIME -VAL(SYS(2))),2)
           ENDDO
           DO WHILE PASSWORD # "password"
              IF PASSWORD # "password"
                 ALERT NOTE 1 "Password is incorrect"
                 EXIT
              ENDIF
           ENDDO
           IF PW # 13
              ALERT NOTE 1 "Time expired... Log in aborted."
              CANCEL
           ENDIF
     ENDDO

Additional query words: 2.10 FoxBASE+/Mac

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Keywords          :  
Technology        : kbHWMAC kbOSMAC kbAudDeveloper kbFoxproSearch kbFoxBASE201Mac kbFoxBASESearch
Version           : MACINTOSH:2.01

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