Function _StringEncrypt problem(return blank string whatever I input)

[kmps]

my Autoit 3 version:v3.2.4.9

when I used the function,I could just get blank string.it's not like this when I used ver v3.2.2.0

#include <string.au3>

$ok=_StringEncrypt(1,"ok123sdf","1sfsfafs23",3)

[martin]

my Autoit 3 version:v3.2.4.9

when I used the function,I could just get blank string.it's not like this when I used ver v3.2.2.0

#include <string.au3>

$ok=_StringEncrypt(1,"ok123sdf","1sfsfafs23",3)

Are you sure? I don't have that problem with 3.2. 4.9 or beta 3.2.3.14.

I tried this

For $n = 1 To 1000

If _StringEncrypt(1,"ok123sdf","1sfsfafs23",3) = '' Then MsgBox(0,'error','blank string returned')

Next

but no message box appeared.

[kmps]

Are you sure? I don't have that problem with 3.2. 4.9 or beta 3.2.3.14.

I tried this

For $n = 1 To 1000

If _StringEncrypt(1,"ok123sdf","1sfsfafs23",3) = '' Then MsgBox(0,'error','blank string returned')

Next

but no message box appeared.

I had test on my two PCs (one is Windows 2000 pro sp4,the other is windows xp sp2),the same problem occured.

please refer to the attachment jpg screenshot

[kmps]

when I used autoit3 v3.2.3.14 (beta),the function can work well