CRC32 Hash Calculation crashes while compiled...

[tip]

Hi to all,

I was intending to write a little script that compares to files CRC32 hash. My script runs perfectly from Scite but when I compile it to an exe file it crashes.(It crashes right after ProgressOn(). See the code below.)

Do you have any idea how to fix it...

Thanks in advance

Here is my full code

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Global $BufferSize = 0x20000
Global $TimerGlobal = 0

$File1=FileOpenDialog("Select file",@ScriptDir,"All (*.*)",3)
If $File1 = "" Then Exit
$File2=FileOpenDialog("Select file",@ScriptDir,"All (*.*)",3)
If $File1 = "" Or $File2 = "" then Exit

$File1CRC32 = _Crc32_EU($File1)

$File2CRC32 = _Crc32_EU($File2)


If $File1CRC32 = $File2CRC32 Then
    
MsgBox(64,"CRC32 Hash Check Completed","CRC32 Hash check verifies that two selected files are identical." _
                                        & @Crlf & "Completed in " & $TimerGlobal & " seconds.")

Else

MsgBox(64,"CRC32 Hash Check Completed","CRC32 Hash Check Failed" & @CRLF & @CRLF & $File1CRC32 & @CRLF & $File2CRC32 _
                                        & @Crlf & "Completed in " & $TimerGlobal & " seconds.")

EndIf


Func _Crc32_EU($Filename)
$FileHandle = FileOpen($Filename, 16)
Global $CRC32 = 0
$CRC32Filesize = FileGetSize($Filename)
ProgressOn("CRC32 Hash Check","CRC32 Hash Status: ","0%",@DesktopWidth/2-50,@DesktopHeight/2+30,16)

$Timer = TimerInit()

For $i = 1 To Ceiling(FileGetSize($Filename) / $BufferSize)
    $CRC32 = _CRC32(FileRead($FileHandle, $BufferSize), BitNot($CRC32))
    ProgressSet($i/Ceiling($CRC32Filesize / $BufferSize)*100,Int($i/Ceiling($CRC32Filesize / $BufferSize)*100) & "%")
Next

ProgressOff()
FileClose($FileHandle)
$TimerGlobal += Round(TimerDiff($Timer)/1000,1)
$Timer = 0
Return $CRC32
EndFunc



Func _CRC32($Data, $CRC32 = -1)
Local $Opcode = '0xC800040053BA2083B8EDB9000100008D41FF516A0859D1E8730231D0E2F85989848DFCFBFFFFE2E78B5D088B4D0C8B


451085DB7416E3148A1330C20FB6D2C1E80833849500FCFFFF43E2ECF7D05BC9C21000'

    Local $CodeBuffer = DllStructCreate("byte[" & BinaryLen($Opcode) & "]")
    DllStructSetData($CodeBuffer, 1, $Opcode)

    Local $Input = DllStructCreate("byte[" & BinaryLen($Data) & "]")
    DllStructSetData($Input, 1, $Data)

    Local $Ret = DllCall("user32.dll", "uint", "CallWindowProc", "ptr", DllStructGetPtr($CodeBuffer), _
                                                    "ptr", DllStructGetPtr($Input), _
                                                    "int", BinaryLen($Data), _
                                                    "uint", $CRC32, _
                                                    "int", 0)

    $Input = 0
    $CodeBuffer = 0

    Return $Ret[0]
EndFunc

Edited March 28, 2009 by tip

[exodius]

I replaced this:

Local $Opcode = '0xC800040053BA2083B8EDB9000100008D41FF516A0859D1E8730231D0E2F85989848DFCFBFFFFE2E78B5D088B4D0C8B



451085DB7416E3148A1330C20FB6D2C1E80833849500FCFFFF43E2ECF7D05BC9C21000'

with this:

Local $Opcode = '0xC800040053BA2083B8EDB9000100008D41FF516A0859D1E8730231D0E2F85989848DFCFBFFFFE2E78B5D088B4D0C8B

451085DB7416E3148A1330C20FB6D2C1E80833849500FCFFFF43E2ECF7D05BC9C21000'

and it worked just fine in both SciTE and after being compiled.

[GEOSoft]

If @exodius is correct (I didn't test either) and you were attempting to keep it neat then use a different method to set $Opcode. Either use line continuation

;
Local $Opcode = "0xC800040053BA2083B8EDB9000100008D41FF516A0859D1E873" & _
"0231D0E2F85989848DFCFBFFFFE2E78B5D088B4D0C8B451085DB7416E3148A" & _
"1330C20FB6D2C1E80833849500FCFFFF43E2ECF7D05BC9C21000"
;

Or use string concantination

;
Local $Opcode = "0xC800040053BA2083B8EDB9000100008D41FF516A0859D1E873"
$Opcode &= "0231D0E2F85989848DFCFBFFFFE2E78B5D088B4D0C8B451085DB7416E3148A"
$Opcode &= "1330C20FB6D2C1E80833849500FCFFFF43E2ECF7D05BC9C21000"
;

[exodius]

True true, the odd thing is, his original code did not work for me in SciTE uncompiled. (obviously because he had a string that wasn't terminated and another string that was never started with an apostrophe)

[GEOSoft]

True true, the odd thing is, his original code did not work for me in SciTE uncompiled. (obviously because he had a string that wasn't terminated and another string that was never started with an apostrophe)

It may also have been a copy/paste error in the code he provided but the corrected code should prove if he has a problem or not. Like I said, I didn't test his problem I simply provided a couple of tips.

[tip]

İt was a copy/paste error that $opcode is spread to several lines. In original code it was a single line...

And when I divided the single line code to several lines -like GEOsoft suggested- it worked...

Thanks everyone for helping

Cheers