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Wheiraucher
07-11-2011, 12:22 PM
Hi guys

I have a problem with a function that works in max2011 alright, but fails in 2012. And I am unsure where the actual error is. All I am trying to do is write a password into a file, then open the file again and check the password. Pretty straight forward process:

fn register =
(
pw = "I am the password" -- some password
regfile = createfile (getDir #temp + "\\license.tmp") -- create a temporary license file
format pw to:regfile -- write the password into the file
encryptfile (getDir #temp + "\\license.tmp") (getDir #temp + "\\license.lic") 1234567 -- make an encrypted version
close regfile -- close the temporary file..
deletefile (getDir #temp + "\\license.tmp") -- ..so that it can be deleted
)

fn isregistered =
(
registered = false-- create boolean registered
if (doesfileexist (getDir #temp + "\\license.lic")) then-- check for file
(

checkfile = openencryptedfile (getDir #temp + "\\license.lic") 1234567 -- open the license file
password = readline checkfile -- read the first line, containing the password
close checkfile -- close the file again
if password == "I am the password" then registered = true -- if it matches, registering worked

)
if registered then messagebox "hooray, it works"
)

register()
isregistered()

So if you run the code in max 2011 you should get a messagebox saying "hooray, it works". One would think the same applies to max 2012, but there I get:

-- Error occurred in isregistered(); filename: D:\Projekte\3dsmax\scripts\registertest.ms; position: 826; line: 20
-- Frame:
-- registered: false
-- checkfile: <File:C:\Users\David\AppData\Local\Autodesk\3dsMax\2012 - 64bit\enu\temp\license.lic>
-- password: undefined
-- Runtime error: Read past end of file

What could be the explanation? It must be something 2012 specific, I guess.

thanks, David

spacefrog
07-11-2011, 01:01 PM
Hi guys

fn register =
(
pw = "I am the password" -- some password
regfile = createfile (getDir #temp + "\\license.tmp") -- create a temporary license file
format pw to:regfile -- write the password into the file

encryptfile (getDir #temp + "\\license.tmp") (getDir #temp + "\\license.lic") 1234567 -- make an encrypted version
close regfile -- close the temporary file..

deletefile (getDir #temp + "\\license.tmp") -- ..so that it can be deleted
)



i guess it's because you try to encrypt your file before you closed it
swap that two lines i marked bold in the quote and it should work

Wheiraucher
07-11-2011, 01:08 PM
Wow. that solved the error. Thanks a lot!!! I am glad that the solution is so simple (in terms of additional scripting work).

I still don't understand why max2012 reacts different to the script then 2011, but hey, who cares, it is working, now.

thanks again, David

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07-11-2011, 01:08 PM
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