PoojaKrishna

Help with DLLCall

4 posts in this topic

Hi friends,

I'm working on a licensing project and we are using LexActicvator of Cryptlex.

I'm trying to call a function of a DLL using DLLCall method. I'm calling the method 'SetProductFile' of DLL 'LexActivator_64.dll'. The parameter to the method is path to the product file and the method should return 1 on successful execution. But the method always returns 7 in my test run.

#define LA_E_PFILE ((HRESULT)0x00000007L)
 
/*
    CODE: LA_E_FPATH
 
    MESSAGE: Invalid product file path.
*/
 
The DLL and the product file I use are attached, please save to the script folder to test the script.
Can anyone please help? I'm stuck for many days.
Link to the documentation 
 
#RequireAdmin
#Region ;**** Directives created by AutoIt3Wrapper_GUI ****
#AutoIt3Wrapper_UseX64=y
#EndRegion ;**** Directives created by AutoIt3Wrapper_GUI ****
#include <WinAPIReg.au3>
#include <WinAPI.au3>
#include<array.au3>
#include <WinAPISys.au3>

$sDLLPath = @ScriptDir& "\LexActivator_64.dll" ;Path to DLL file
$sDataFilePath = @ScriptDir& "\Product.dat" ;Path to product data file

$hDLL = DllOpen ( $sDLLPath) ;Opening DLL
If $hDLL = -1 Then ;If error
    Msgbox(0,"Error", "Couldn't open the DLL file.")
    exit
EndIf

If Not FileExists($sDataFilePath) Then ;Checking product file
    Msgbox(0,"Error", "Product file does not exist.")
    exit
EndIf

$aArray = DllCall ( $hDLL , "int:cdecl", "SetProductFile", "STR", $sDataFilePath ) ;calling SetProductFile method
If @error Then ;If error
    MsgBox(0, "Error","Error occured while calling DLL method: " &  @error)
Else
    Msgbox(0,"Result","Result received: " & $aArray[0]) ;result
EndIF

DllClose ( $hDLL )

 

LexActivator_64.dll

Product.dat

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I was unable to locate an API documentation. What are the C prototypes of the functions you'll be using?

Note that the return type should be int64 and the path wstr (most probably).

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Hi,

Thank you so much for your reply. They do not have any explicit API documentations than the sample codes provided. Please see the following portion of vb code provided. 

'
        '            FUNCTION: SetProductFile()
        '
        '            PURPOSE: Sets the path of the Product.dat file. This should be
        '            used if your application and Product.dat file are in different
        '            folders or you have renamed the Product.dat file.
        '
        '            If this function is used, it must be called on every start of
        '            your program before any other functions are called.
        '
        '            PARAMETERS:
        '            * filePath - path of the product file (Product.dat)
        '
        '            RETURN CODES: LA_OK, LA_E_FPATH, LA_E_PFILE
        '
        '            NOTE: If this function fails to set the path of product file, none of the
        '            other functions will work.
        '        


        Public Shared Function SetProductFile(filePath As String) As Integer
#If LA_ANY_CPU Then
            Return If(IntPtr.Size = 8, Native.SetProductFile_x64(filePath), Native.SetProductFile(filePath))
#Else
            Return Native.SetProductFile(filePath)
#End If

        End Function

 

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Thank you so much friend, it worked!!!

$aArray = DllCall ( $hDLL , "int64:cdecl", "SetProductFile", "wstr", $sDataFilePath )

 

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The AutoIt interpreter ended unexpectedly." & @CRLF & "Exit code: " & $nExit,0,$FormMain) EndSwitch EndIf GUICtrlSetData($ButtonTest,"Test Code") GUISetState(@SW_ENABLE,$FormMain) FileDelete(@TempDir & "\DllCallExec.au3") WinActivate($FormMain) EndIf Case $ButtonGenonly $sDllCallOut = _GenerateCode(GUICtrlRead($ComboOutput)) GUICtrlSetData($EditCode,$sDllCallOut) Case $ButtonCopy $sDllCallOut = _GenerateCode(GUICtrlRead($ComboOutput)) GUICtrlSetData($EditCode,$sDllCallOut) If ClipPut($sDllCallOut) Then ToolTip("Copied!") Else ToolTip("Copy failed!") EndIf Sleep(1000) ToolTip("") Case $ButtonInsert $sDllCallOut = _GenerateCode(GUICtrlRead($ComboOutput)) GUICtrlSetData($EditCode,$sDllCallOut) If ClipPut($sDllCallOut) Then ControlSend("[CLASS:SciTEWindow]","","Scintilla1","^v") Case $InputFunc If StringRight(GUICtrlRead($InputFunc),1) == "W" Then ; Check if last character of entered function name is a capital "W" GUICtrlSetState($RadioFuncUnicode,$GUI_CHECKED) Else GUICtrlSetState($RadioFuncAnsi,$GUI_CHECKED) EndIf Case $GUI_EVENT_CLOSE Exit EndSwitch WEnd Func _GenerateCode($sOutputType = "") Local $sArch, $sReturnTypeOut, $sParamTypeOut, $sDllFuncName, $sDllCallOut, $sCmdOutStart, $sCmdOutEnd, $fOutputGen Switch $sOutputType Case "ConsoleWrite" $sCmdOutStart = 'ConsoleWrite(' $sCmdOutEnd = ' & @CRLF)' $fOutputGen = 1 Case "MsgBox" $sCmdOutStart = 'MsgBox(0,"DllCall Code Generator",' $sCmdOutEnd = ')' $fOutputGen = 1 Case Else $sCmdOutStart = "" $sCmdOutEnd = "" $fOutputGen = 0 EndSwitch If GUICtrlRead($RadioFuncAnsi) = $GUI_CHECKED Then $sArch = "a" If GUICtrlRead($RadioFuncUnicode) = $GUI_CHECKED Then $sArch = "w" $sDllFuncName = GUICtrlRead($InputDll) & "/" & GUICtrlRead($InputFunc) $sReturnTypeOut = _ConvertType(GUICtrlRead($InputReturnType)) If @error Then $sReturnTypeOut = InputBox("Unrecognized Type","Unrecognized return type """ & GUICtrlRead($InputReturnType) & """. Make sure you are using an MSDN return type." & @CRLF & @CRLF & "If you are certain that the return type is correct and you happen to know the equivalent AutoIt return type, you may enter the AutoIt return type here.","","",Default,220,Default,Default,0,$FormMain) If $sReturnTypeOut = "" Then Return SetError(1,0,"") EndIf $sReturnTypeOut = _ConvertTypeArch($sReturnTypeOut,$sArch) If GUICtrlRead($ComboCallConv) <> "stdcall" Then $sReturnTypeOut &= ':' & GUICtrlRead($ComboCallConv) $sDllCallOut = 'Local $aDllCallReturn,$vDllCallReturn' $sDllCallOut = '$aDllCallReturn = DllCall("' & GUICtrlRead($InputDll) & '","' & $sReturnTypeOut & '","' & GUICtrlRead($InputFunc) & '"' If UBound($aParams) > 1 Then For $x = 1 To UBound($aParams) - 1 $sParamTypeOut = '' $sParamTypeOut = _ConvertTypeArch(_ConvertType($aParams[$x][0]),$sArch) If $sParamTypeOut = '' Then $sParamTypeOut = InputBox("Unrecognized Type","Unrecognized parameter type """ & $aParams[$x][0] & """. Make sure you are using an MSDN parameter type." & @CRLF & @CRLF & "If you are certain that the parameter type is correct and you happen to know the equivalent AutoIt parameter type, you may enter the AutoIt parameter type here.","","",Default,220,Default,Default,0,$FormMain) If $sParamTypeOut = "" Then Return(SetError(1,0,"")) If StringRight($sParamTypeOut,1) = "*" Then $sParamTypeOut = StringTrimRight($sParamTypeOut,1) ; If the user added an asterisk to the end of the parameter type, remove it; it will be added back later if necessary. EndIf $sDllCallOut &= ',"' & $sParamTypeOut If $aParams[$x][2] = "Output/ByRef" Then $sDllCallOut &= '*' $sDllCallOut &= '","' & $aParams[$x][1] & '"' Next EndIf $sDllCallOut &= ')' & @CRLF ; Generate code to check for DllCall execution error. If $fOutputGen = 1 Then $sDllCallOut &= _ 'If @error Then' & @CRLF & _ ' Switch @error' & @CRLF & _ ' Case 1' & @CRLF & _ ' ' & $sCmdOutStart & '"DllCall error (' & $sDllFuncName & '): Unable to use the DLL file. Possibly a problem with the parameters."' & $sCmdOutEnd & @CRLF & _ ' Case 2' & @CRLF & _ ' ' & $sCmdOutStart & '"DllCall error (' & $sDllFuncName & '): Unknown return type."' & $sCmdOutEnd & @CRLF & _ ' Case 3' & @CRLF & _ ' ' & $sCmdOutStart & '"DllCall error (' & $sDllFuncName & '): Function not found in DLL file. Remember that function names are case sensitive."' & $sCmdOutEnd & @CRLF & _ ' Case 4' & @CRLF & _ ' ' & $sCmdOutStart & '"DllCall error (' & $sDllFuncName & '): Incorrect number of parameters."' & $sCmdOutEnd & @CRLF & _ ' Case 5' & @CRLF & _ ' ' & $sCmdOutStart & '"DllCall error (' & $sDllFuncName & '): Bad parameter."' & $sCmdOutEnd & @CRLF & _ ' Case Else' & @CRLF & _ ' ' & $sCmdOutStart & '"DllCall error (' & $sDllFuncName & '): Unknown/unspecified error."' & $sCmdOutEnd & @CRLF & _ ' EndSwitch' & @CRLF & _ ' $vDllCallReturn = ""' & @CRLF & _ 'Else' & @CRLF If $fOutputGen = 1 Then $sDllCallOut &= ' ' $sDllCallOut &= '$vDllCallReturn = $aDllCallReturn[0]' & @CRLF ; Generate code to assign returned ByRef values back to their AutoIt variables. If UBound($aParams) > 1 Then For $x = 1 To UBound($aParams) - 1 If $aParams[$x][2] = "Output/ByRef" Then If $fOutputGen = 1 Then $sDllCallOut &= ' ' $sDllCallOut &= $aParams[$x][1] & ' = $aDllCallReturn[' & $x & ']' & @CRLF EndIf Next EndIf ; Generate code to output values of the variables passed to the DllCall via ByRef. If $fOutputGen = 1 Then $sDllCallOut &= ' ' & $sCmdOutStart If UBound($aParams) > 1 Then For $x = 1 To UBound($aParams) - 1 If $aParams[$x][2] = "Output/ByRef" Then $sDllCallOut &= '"' & $aParams[$x][1] & ' = " & ' & $aParams[$x][1] & ' & @CRLF & ' EndIf Next EndIf $sDllCallOut &= '"DllCall return value: " & $vDllCallReturn' & $sCmdOutEnd & @CRLF $sDllCallOut &= "EndIf" & @CRLF EndIf Return $sDllCallOut EndFunc ; Convert the MSDN variable type to AutoIt variable type Func _ConvertType($MSDN_Type) Switch $MSDN_Type Case 'ATOM' Return 'WORD' Case 'BOOL' Return 'BOOL' Case 'BOOLEAN' Return 'BOOLEAN' Case 'BYTE' Return 'BYTE' Case 'CHAR' Return 'str' Case 'COLORREF' Return 'DWORD' Case 'CONST' Return 'const' Case 'DWORD' Return 'DWORD' Case 'DWORDLONG' Return 'ULONG' Case 'DWORD_PTR' Return 'DWORD_PTR' Case 'DWORD32' Return 'UINT' Case 'DWORD64' Return 'INT64' Case 'FLOAT' Return 'FLOAT' Case 'HACCEL' Return 'HANDLE' Case 'HALF_PTR' Return 'ptr' Case 'HANDLE' Return 'HANDLE' Case 'HBITMAP' Return 'HANDLE' Case 'HBRUSH' Return 'HANDLE' Case 'HCONV' Return 'HANDLE' Case 'HCONVLIST' Return 'HANDLE' Case 'HCURSOR' Return 'HICON' Case 'HDC' Return 'HANDLE' Case 'HDDEDATA' Return 'HANDLE' Case 'HDESK' Return 'HANDLE' Case 'HDROP' Return 'HANDLE' Case 'HDWP' Return 'HANDLE' Case 'HENHMETAFILE' Return 'HANDLE' Case 'HFILE' Return 'int' Case 'HFONT' Return 'HANDLE' Case 'HGIDOBJ' Return 'HANDLE' Case 'HGLOBAL' Return 'HANDLE' Case 'HHOOK' Return 'HANDLE' Case 'HICON' Return 'HANDLE' Case 'HINSTANCE' Return 'HANDLE' Case 'HKEY' Return 'HANDLE' Case 'HKL' Return 'HANDLE' Case 'HLOCAL' Return 'HANDLE' Case 'HMENU' Return 'HANDLE' Case 'HMETAFILE' Return 'HANDLE' Case 'HMODULE' Return 'HANDLE' Case 'HMONITOR' Return 'HANDLE' Case 'HPALETTE' Return 'HANDLE' Case 'HPEN' Return 'HANDLE' Case 'HRESULT' Return 'LONG' Case 'HRGN' Return 'HANDLE' Case 'HRSRC' Return 'HANDLE' Case 'HSZ' Return 'HANDLE' Case 'HWINSTA' Return 'HANDLE' Case 'HWND' Return 'HWND' Case 'INT_PTR' Return 'INT_PTR' Case 'INT32' Return 'int' Case 'INT' Return 'int' Case 'INT64' Return 'INT64' Case 'LANGID' Return 'WORD' Case 'LARGE_INTEGER' Return 'INT64' Case 'LCID' Return 'DWORD' Case 'LGRPID' Return 'DWORD' Case 'LONG' Return 'LONG' Case 'LONGLONG' Return 'INT64' Case 'LONG_PTR' Return 'LONG_PTR' Case 'LONG32' Return 'int' Case 'LONG64' Return 'INT64' Case 'LPARAM' Return 'LPARAM' Case 'LPBOOL' Return 'int' Case 'LPBYTE' Return 'int' Case 'LPCOLORREF' Return 'DWORD' Case 'LPCSTR' Return 'str' Case 'LPCTSTR' Return 'str' Case 'LPCWSTR' Return 'wstr' Case 'LPDWORD' Return 'DWORD' Case 'LPHANDLE' Return 'HANDLE' Case 'LPINT' Return 'int' Case 'LPLONG' Return 'long' Case 'LPSTR' Return 'str' Case 'LPTSTR' Return 'str' Case 'LPVOID' Return 'ptr' Case 'LPWORD' Return 'WORD' Case 'LPWSTR' Return 'wstr' Case 'LRESULT' Return 'LRESULT' Case 'PBOOL' Return 'BOOL' Case 'PBOOLEAN' Return 'BOOLEAN' Case 'PBYTE' Return 'BYTE' Case 'PCHAR' Return 'str' Case 'PCSTR' Return 'str' Case 'PCTSTR' Return 'str' Case 'PCWSTR' Return 'wstr' Case 'PDWORD' Return 'DWORD' Case 'PDWORDLONG' Return 'UINT64' Case 'PDWORD_PTR' Return 'DWORD_PTR' Case 'PDWORD32' Return 'UINT' Case 'PDWORD64' Return 'INT64' Case 'PFLOAT' Return 'FLOAT' Case 'PHALF_PTR' Return 'ptr' Case 'PHANDLE' Return 'HANDLE' Case 'PHKEY' Return 'HANDLE' Case 'PINT' Return 'int' Case 'PINT_PTR' Return 'INT_PTR' Case 'PINT32' Return 'int' Case 'PINT64' Return 'INT64' Case 'PLCID' Return 'DWORD' Case 'PLONG' Return 'LONG' Case 'PLONGLONG' Return 'INT64' Case 'PLONG_PTR' Return 'LONG_PTR' Case 'PLONG32' Return 'long' Case 'PLONG64' Return 'INT64' Case 'POINTER_32' Return 'ptr' Case 'POINTER_64' Return 'ptr' Case 'POINTER_SIGNED' Return 'ptr' Case 'POINTER_UNSIGNED' Return 'ULONG_PTR' Case 'PSHORT' Return 'SHORT' Case 'PSIZE_T' Return 'ULONG_PTR' Case 'PSSIZE_T' Return 'LONG_PTR' Case 'PSTR' Return 'str' Case 'PTBYTE' Return 'BYTE' Case 'PTCHAR' Return 'wstr' Case 'PTSTR' Return 'wstr' Case 'PUCHAR' Return 'BYTE' Case 'PUHALF_PTR' Return 'ptr' Case 'PUINT' Return 'UINT' Case 'PUINT_PTR' Return 'UINT_PTR' Case 'PUINT32' Return 'UINT' Case 'PUINT64' Return 'UINT64' Case 'PULARGE_INTEGER' Return 'UINT64' Case 'PULONG' Return 'ULONG' Case 'PULONGLONG' Return 'UINT64' Case 'PULONG_PTR' Return 'ULONG_PTR' Case 'PULONG32' Return 'ULONG' Case 'PULONG64' Return 'UINT64' Case 'PUSHORT' Return 'USHORT' Case 'PVOID' Return 'ptr' Case 'PWCHAR' Return 'wstr' Case 'PWORD' Return 'WORD' Case 'PWSTR' Return 'wstr' Case 'SC_HANDLE' Return 'HANDLE' Case 'SC_LOCK' Return 'ptr' Case 'SERVICE_STATUS_HANDLE' Return 'HANDLE' Case 'SHORT' Return 'SHORT' Case 'SIZE_T' Return 'ULONG_PTR' Case 'SSIZE_T' Return 'LONG_PTR' Case 'TBYTE' Return 'wstr' Case 'TCHAR' Return 'wstr' Case 'UCHAR' Return 'BYTE' Case 'UHALF_PTR' Return 'ptr' Case 'UINT' Return 'UINT' Case 'UINT_PTR' Return 'UINT_PTR' Case 'UINT32' Return 'UINT' Case 'UINT64' Return 'UINT64' Case 'ULARGE_INTEGER' Return 'UINT64' Case 'ULONG' Return 'ULONG' Case 'ULONGLONG' Return 'UINT64' Case 'ULONG_PTR' Return 'ULONG_PTR' Case 'ULONG32' Return 'ULONG' Case 'ULONG64' Return 'UINT64' Case 'UNICODE_STRING' Return 'ptr' Case 'USHORT' Return 'USHORT' Case 'USN' Return 'INT64' Case 'VOID' Return 'none' Case 'WCHAR' Return 'wstr' Case 'WORD' Return 'WORD' Case 'WPARAM' Return 'WPARAM' Case Else SetError(1) Return "" EndSwitch EndFunc ;==> ; Some variable types should be converted from their ANSI to Unicode types or vice versa. Func _ConvertTypeArch($MSDN_Type,$sArch) Switch $MSDN_Type Case 'STR' If $sArch = "a" Then Return "str" If $sArch = "w" Then Return "wstr" Case 'WSTR' If $sArch = "a" Then Return "str" If $sArch = "w" Then Return "wstr" Case Else Return $MSDN_Type EndSwitch EndFunc Here is an example:
      Function: GetDiskFreeSpaceW (MSDN page: http://msdn.microsoft.com/en-us/library/aa364935(VS.85).aspx)
      Input this:

      Click Test Code, and get this:

      Click Insert in SciTE to insert the code into your script.
      Updated 2014/01/28:  
      Edit 2015/11/25: Fixed broken link