Custom Query

Somepeople had problems with my autoit program because a folder in the appdata dir was not found. Today I heard they have got all Vista 64bit. I said he should create a little program msgbox(0,"test",@appdatadir), but the window is empty. The @appdatadir function returns nothing. I can't find out more about the problem because i don't use a 64bit operatingsysteme.

here: ​https://www.autoitscript.com/autoit3/docs/function_notes.htm

Please consider better describe the significance and usage of the keyword @error

Especialy

@error = 0 ;is always success

should be worded like this

@error = 0 ; always means success

ps. I do not do it myself, because of my still poor knowledge of English

REASON/FORUM LINK: ​https://www.autoitscript.com/forum/topic/177987-error-using-ielinkclickbytext/

I have done some testing. BinaryToString will return the a value up to when it sees the first "00" in the Binary String. The problem is @error still shows 0 - so the return value may or may not contain any values depending on the position of any "00" entries in the Binary string. We have no way to easily test the output from BinaryToString for any "00" values in input Binary String

;binary to string test
;Binary message consisting of a "length component" followed by the string part
$err = 99
$ext = 99
$bin_msg = "0x0000000548656C6C6F"
;To get hold of sting part of message I do this
$bin_str = "0x" & StringTrimLeft($bin_msg,10)
$rtn = BinaryToString($bin_str)
$err = @error
$ext = @extended
msgbox(0,"This works OK","$rtn = " & $rtn & @CRLF & "$err = " & $err & @CRLF & "$ext = " & $ext)
;This suggests that BinaryToString function is returning @error and @extended
; but...
$rtn = BinaryToString($bin_msg)
$err = @error
$ext = @extended
;This does not work - no error, no extended and actually causes Msgbox() to work incorrectly
msgbox(0,"Where are the $err and $ext entries ?","$rtn = " & $rtn & @CRLF & "$err = " & $err & @CRLF & "$ext = " & $ext)