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Problem with accessing DLL Functions

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[quote][i]Originally posted by AndiDC[/i]
[br]Origin Version (Select Help-->About Origin): Origin 75G SR5
Operating System: Windows XP SP2
Hi everybody,
although there are some topics concerning function calls from external dll's, I could not solve the following problem:
The following Header file is the interface class (hAnalyseInterface.h):

#ifndef _DEFINED_HANALYSE_DLL_EXPORTS
#define _DEFINED_HANALYSE_DLL_EXPORTS
#ifdef __cplusplus
	extern "C" {
#endif
typedef unsigned long HANALYSE;
typedef void			(__stdcall* LPFN_DLLFUNC_GETVERSION)		(char *, char *, char *);

LPFN_DLLFUNC_GETVERSION		GetVersionDLL;

#ifdef __cplusplus
}
#endif
#endif//_DEFINED_HANALYSE_DLL_EXPORTS

With the following C++ Code I can access the function without any problem using Visual C++ Compiler (hAnalyseTest.cpp):

#include "stdafx.h"
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include "hAnalyseInterface.h"

int main(int argc, char* argv[])
{
 char cVersion, cSubVersion, cSubSubVersion;
 char sVersionDLL[]="0.00";

HINSTANCE	m_hDll;
 HANALYSE	hAnalyseHandle=0;

m_hDll=LoadLibrary("hAnalyse.dll");

GetVersionDLL					= (LPFN_DLLFUNC_GETVERSION)	GetProcAddress(m_hDll, "GetVersionDLL");
 GetVersionDLL(&cVersion, &cSubVersion, &cSubSubVersion);

sVersionDLL[0]=48+cVersion; 
 sVersionDLL[2]=48+cSubVersion;
 sVersionDLL[3]=48+cSubSubVersion;
 
 FreeLibrary(m_hDll);

return 0;
}

How can I change the source in an easy way, that I can compile and run it with OriginC?

[/quote]

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T O P I C R E V I E W
AndiDC	Posted - 06/21/2006 : 05:05:19 AM Origin Version (Select Help-->About Origin): Origin 75G SR5 Operating System: Windows XP SP2 Hi everybody, although there are some topics concerning function calls from external dll's, I could not solve the following problem: The following Header file is the interface class (hAnalyseInterface.h): #ifndef _DEFINED_HANALYSE_DLL_EXPORTS #define _DEFINED_HANALYSE_DLL_EXPORTS #ifdef __cplusplus extern "C" { #endif typedef unsigned long HANALYSE; typedef void (__stdcall* LPFN_DLLFUNC_GETVERSION) (char , char , char ); LPFN_DLLFUNC_GETVERSION GetVersionDLL; #ifdef __cplusplus } #endif #endif//_DEFINED_HANALYSE_DLL_EXPORTS With the following C++ Code I can access the function without any problem using Visual C++ Compiler (hAnalyseTest.cpp): #include "stdafx.h" #include <windows.h> #include <stdio.h> #include <stdlib.h> #include "hAnalyseInterface.h" int main(int argc, char argv[]) { char cVersion, cSubVersion, cSubSubVersion; char sVersionDLL[]="0.00"; HINSTANCE m_hDll; HANALYSE hAnalyseHandle=0; m_hDll=LoadLibrary("hAnalyse.dll"); GetVersionDLL = (LPFN_DLLFUNC_GETVERSION) GetProcAddress(m_hDll, "GetVersionDLL"); GetVersionDLL(&cVersion, &cSubVersion, &cSubSubVersion); sVersionDLL[0]=48+cVersion; sVersionDLL[2]=48+cSubVersion; sVersionDLL[3]=48+cSubSubVersion; FreeLibrary(m_hDll); return 0; } How can I change the source in an easy way, that I can compile and run it with OriginC?
2 L A T E S T R E P L I E S (Newest First)
AndiDC	Posted - 07/03/2006 : 02:24:11 AM Dear ML, thanks for your help! It worked fine and now I'll try to access the other dll functions! Regards Andi
ML	Posted - 06/28/2006 : 11:49:58 AM Try this: // -------------------------------- // hAnalyseInterface.h: #ifndef _DEFINED_HANALYSE_DLL_EXPORTS #define _DEFINED_HANALYSE_DLL_EXPORTS // Here you may need to provide full path to your DLL: #pragma dll("hAnalyse.dll") void __stdcall GetVersionDLL(char , char , char *); #endif//_DEFINED_HANALYSE_DLL_EXPORTS // END hAnalyseInterface.h // -------------------------------- // -------------------------------- // Test_hAnalyseInterface.c: #include <origin.h> ////////////////////////////////// #include "hAnalyseInterface.h" void test_hAnalyseInterface() { char cVersion, cSubVersion, cSubSubVersion; GetVersionDLL(&cVersion, &cSubVersion, &cSubSubVersion); printf("%d.%d%d\n", cVersion + 48, cSubVersion + 48, cSubSubVersion + 48); } // END Test_hAnalyseInterface.c // -------------------------------- I could not test this fully, though, since I don't have your DLL. You should be able to run the test code from Script Window by calling the test function: test_hAnalyseInterface The printf() line will dump the information. ML

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