A customer has given me a Dll for me to use so he can control the 
barcode for printed labels. He has given me a sample program that works 
with this DLL and I can recompile the sample program and it still works 
but when I try running it from my main application I get the following 
error;

Internal Data Structures Corrupted

dllExecuteCall


My code for calling it is as follows;

nDll := DllLoad("S3ConceptPatterns.dll")
cTemplate1 := DllPrepareCall(nDll, DLL_STDCALL, "TestMethod")
nRet := DllExecuteCall(cTemplate1)

I also tried the other method

nRet := DllCall(nDll, DLL_STDCALL, "TestMethod")

with identical results (DllCall).

I don't see how the application should make a difference although I also 
can have 1-2 additional threads working.

Does anyone have any suggestions as to what I can do next?

Regards

Phil Jackson

What is passed to the function? Is it really just a call without 
Parameters??

Jim

On 03/17/2014 12:46 AM, Philip G Jackson wrote:
> A customer has given me a Dll for me to use so he can control the
> barcode for printed labels. He has given me a sample program that works
> with this DLL and I can recompile the sample program and it still works
> but when I try running it from my main application I get the following
> error;
>
> Internal Data Structures Corrupted
>
> dllExecuteCall
>
>
> My code for calling it is as follows;
>
> nDll := DllLoad("S3ConceptPatterns.dll")
> cTemplate1 := DllPrepareCall(nDll, DLL_STDCALL, "TestMethod")
> nRet := DllExecuteCall(cTemplate1)
>
> I also tried the other method
>
> nRet := DllCall(nDll, DLL_STDCALL, "TestMethod")
>
> with identical results (DllCall).
>
> I don't see how the application should make a difference although I also
> can have 1-2 additional threads working.
>
> Does anyone have any suggestions as to what I can do next?
>
> Regards
>
> Phil Jackson
>
>
>

Hi James

The testmethod has no parameters and is just a test to check that the 
method can be called. There is another method that does have parameters 
and if I pass them, it also fails.

Cheers

Phil Jackson




On 18/03/2014 7:56 a.m., James Loughner wrote:
> What is passed to the function? Is it really just a call without
> Parameters??
>
> Jim
>
> On 03/17/2014 12:46 AM, Philip G Jackson wrote:
>> A customer has given me a Dll for me to use so he can control the
>> barcode for printed labels. He has given me a sample program that works
>> with this DLL and I can recompile the sample program and it still works
>> but when I try running it from my main application I get the following
>> error;
>>
>> Internal Data Structures Corrupted
>>
>> dllExecuteCall
>>
>>
>> My code for calling it is as follows;
>>
>> nDll := DllLoad("S3ConceptPatterns.dll")
>> cTemplate1 := DllPrepareCall(nDll, DLL_STDCALL, "TestMethod")
>> nRet := DllExecuteCall(cTemplate1)
>>
>> I also tried the other method
>>
>> nRet := DllCall(nDll, DLL_STDCALL, "TestMethod")
>>
>> with identical results (DllCall).
>>
>> I don't see how the application should make a difference although I also
>> can have 1-2 additional threads working.
>>
>> Does anyone have any suggestions as to what I can do next?
>>
>> Regards
>>
>> Phil Jackson
>>
>>
>>
>

did you try DLL_CDECL instead of DLL_STDCALL ?

Regards,
Edgar

Em 17/03/2014 16:24, Philip G Jackson escreveu:
> Hi James
>
> The testmethod has no parameters and is just a test to check that the method can be called. There is another method that does have parameters and if I
> pass them, it also fails.
>
> Cheers
>
> Phil Jackson
>
>
>
>
> On 18/03/2014 7:56 a.m., James Loughner wrote:
>> What is passed to the function? Is it really just a call without
>> Parameters??
>>
>> Jim
>>
>> On 03/17/2014 12:46 AM, Philip G Jackson wrote:
>>> A customer has given me a Dll for me to use so he can control the
>>> barcode for printed labels. He has given me a sample program that works
>>> with this DLL and I can recompile the sample program and it still works
>>> but when I try running it from my main application I get the following
>>> error;
>>>
>>> Internal Data Structures Corrupted
>>>
>>> dllExecuteCall
>>>
>>>
>>> My code for calling it is as follows;
>>>
>>> nDll := DllLoad("S3ConceptPatterns.dll")
>>> cTemplate1 := DllPrepareCall(nDll, DLL_STDCALL, "TestMethod")
>>> nRet := DllExecuteCall(cTemplate1)
>>>
>>> I also tried the other method
>>>
>>> nRet := DllCall(nDll, DLL_STDCALL, "TestMethod")
>>>
>>> with identical results (DllCall).
>>>
>>> I don't see how the application should make a difference although I also
>>> can have 1-2 additional threads working.
>>>
>>> Does anyone have any suggestions as to what I can do next?
>>>
>>> Regards
>>>
>>> Phil Jackson
>>>
>>>
>>>
>>
>


--
Edgar Borger
Softsupply Informatica Ltda.
Rua Alagoas, 48
Sao Paulo, SP
01242-000
Tel : (5511) 3159-1997
Fax : (5511) 3255-5224

---
Este email está limpo de vírus e malwares porque a proteção do avast! Antivírus está ativa.
http://www.avast.com

Hi Edgar

I will try this - the sample program does use DLL_STDCALL though.

Cheers

Phil Jackson

On 18/03/2014 9:11 a.m., Edgar Borger wrote:
>
> did you try DLL_CDECL instead of DLL_STDCALL ?
>
> Regards,
> Edgar
>
> Em 17/03/2014 16:24, Philip G Jackson escreveu:
>> Hi James
>>
>> The testmethod has no parameters and is just a test to check that the
>> method can be called. There is another method that does have
>> parameters and if I
>> pass them, it also fails.
>>
>> Cheers
>>
>> Phil Jackson
>>
>>
>>
>>
>> On 18/03/2014 7:56 a.m., James Loughner wrote:
>>> What is passed to the function? Is it really just a call without
>>> Parameters??
>>>
>>> Jim
>>>
>>> On 03/17/2014 12:46 AM, Philip G Jackson wrote:
>>>> A customer has given me a Dll for me to use so he can control the
>>>> barcode for printed labels. He has given me a sample program that works
>>>> with this DLL and I can recompile the sample program and it still works
>>>> but when I try running it from my main application I get the following
>>>> error;
>>>>
>>>> Internal Data Structures Corrupted
>>>>
>>>> dllExecuteCall
>>>>
>>>>
>>>> My code for calling it is as follows;
>>>>
>>>> nDll := DllLoad("S3ConceptPatterns.dll")
>>>> cTemplate1 := DllPrepareCall(nDll, DLL_STDCALL, "TestMethod")
>>>> nRet := DllExecuteCall(cTemplate1)
>>>>
>>>> I also tried the other method
>>>>
>>>> nRet := DllCall(nDll, DLL_STDCALL, "TestMethod")
>>>>
>>>> with identical results (DllCall).
>>>>
>>>> I don't see how the application should make a difference although I
>>>> also
>>>> can have 1-2 additional threads working.
>>>>
>>>> Does anyone have any suggestions as to what I can do next?
>>>>
>>>> Regards
>>>>
>>>> Phil Jackson
>>>>
>>>>
>>>>
>>>
>>
>
>

Hi Phillip

Use the library Pablo Botella
ot4xb can download it from this link
http://www.xbwin.com/

   use  ->      @S3ConceptPatterns:TestMethod( ...Parameters...)

Best Regard
Hector





<Philip G Jackson> escribi en el mensaje 
news:19ccd63b$3b773262$39257@news.alaska-software.com...
> Hi Edgar
>
> I will try this - the sample program does use DLL_STDCALL though.
>
> Cheers
>
> Phil Jackson
>
> On 18/03/2014 9:11 a.m., Edgar Borger wrote:
>>
>> did you try DLL_CDECL instead of DLL_STDCALL ?
>>
>> Regards,
>> Edgar
>>
>> Em 17/03/2014 16:24, Philip G Jackson escreveu:
>>> Hi James
>>>
>>> The testmethod has no parameters and is just a test to check that the
>>> method can be called. There is another method that does have
>>> parameters and if I
>>> pass them, it also fails.
>>>
>>> Cheers
>>>
>>> Phil Jackson
>>>
>>>
>>>
>>>
>>> On 18/03/2014 7:56 a.m., James Loughner wrote:
>>>> What is passed to the function? Is it really just a call without
>>>> Parameters??
>>>>
>>>> Jim
>>>>
>>>> On 03/17/2014 12:46 AM, Philip G Jackson wrote:
>>>>> A customer has given me a Dll for me to use so he can control the
>>>>> barcode for printed labels. He has given me a sample program that 
>>>>> works
>>>>> with this DLL and I can recompile the sample program and it still 
>>>>> works
>>>>> but when I try running it from my main application I get the following
>>>>> error;
>>>>>
>>>>> Internal Data Structures Corrupted
>>>>>
>>>>> dllExecuteCall
>>>>>
>>>>>
>>>>> My code for calling it is as follows;
>>>>>
>>>>> nDll := DllLoad("S3ConceptPatterns.dll")
>>>>> cTemplate1 := DllPrepareCall(nDll, DLL_STDCALL, "TestMethod")
>>>>> nRet := DllExecuteCall(cTemplate1)
>>>>>
>>>>> I also tried the other method
>>>>>
>>>>> nRet := DllCall(nDll, DLL_STDCALL, "TestMethod")
>>>>>
>>>>> with identical results (DllCall).
>>>>>
>>>>> I don't see how the application should make a difference although I
>>>>> also
>>>>> can have 1-2 additional threads working.
>>>>>
>>>>> Does anyone have any suggestions as to what I can do next?
>>>>>
>>>>> Regards
>>>>>
>>>>> Phil Jackson
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>
>>
>

Phil,
From my experience, this error has nothing to do with the specific function 
generating the error, and the “Internal Data Structures Corrupted” error is 
derived from the compiler/linker.  Try to create another XPJ that does not 
include all PRGs, and then pbuild the incomplete one followed by the 
complete project (e.g. pbuild partial; pbuild).  The first run would likely 
result in linker error, but the next run will fix it.  Remember to delete 
all OBJs and then recompile as outlined above.

-Itai

Can you paste the function prototype?
probably you will have in a .h file

Talk about how to call a DLL function without the prototype is like try to drive with the eyes closed, crash is very probable

Regards,
Pablo