[Solved] DllStruct issue.

[JohnOne]

I'm writing to element 1, index 0 of a struct declared similar to the following...

DllStructCreate("wchar[20]")

Thing is, I'm doing something wrong, here is reproducer.

$TestStruct = _StringToStruct(@ScriptDir & "\file.ext")

Func _StringToStruct($string)
    ConsoleWrite("$string = " & $string & @LF)
    Local $iLen = StringLen($string)
    ConsoleWrite("$iLen = " & $iLen & @LF)
    Local $aString = StringSplit($string, "", 2)
    ConsoleWrite("UBound($aString) = " & UBound($aString) & @LF)
    Local $Struct = DllStructCreate("wchar[" & String($iLen + 2) & "]")
    For $i = 0 To $iLen - 1
        If $i = 0 Then
            ConsoleWrite("Adding " & $aString[$i] & " to struct index " & $i & @LF)
        EndIf

        DllStructSetData($Struct, 1, $aString[$i], $i)
    Next
    ConsoleWrite("Expect Struct index 0 to equal C" & @LF)
    ConsoleWrite("! Struct index 0 = ")
    ConsoleWrite(DllStructGetData($Struct, 1, 0))
    ConsoleWrite(@LF)

    Return $Struct
EndFunc   ;==>_StringToStruct

Here is console output.

$string = C:\Documents and Settings\JOHN\Documents\MYCODE\AU3\TestScripts\file.ext
$iLen = 72
UBound($aString) = 72
Adding C to struct index 0
Expect Struct index 0 to equal C
! Struct index 0 = 0

I don't get it, can someone spot my error?

Edited March 1, 2014 by JohnOne

[Danp2]

 

        DllStructSetData($Struct, 1, $aString[$i], $i)

 

should be:

DllStructSetData($Struct, 1, $aString[$i], $i + 1)

[JohnOne]

That's odd that.

So each struct element has no  index 0?

[guinness]

No...

Local $tStruct = DllStructCreate('int;int')
DllStructSetData($tStruct, 0, 100) ; Change to 1.
ConsoleWrite(DllStructGetData($tStruct, 0) & @CRLF) ; Change to 1.

[JohnOne]

Cheers men, at least I know where my problem lies now.

[JohnOne]

But of course that code is for element 0, not element 1 index 0.

[trancexx]

JohnOne why in the world would you be setting characters one by one, and not the whole string at once?

[JohnOne]

I'm not now after seeing a Lars post next door, but it was because I'm a grade A jackass.

Oh and my whole problem stemmed from wchar, I changed it to char and it's all warm chicken soup now

But I swear I followed PCZZTSTR and it ended up at wchar_t