Dear All
How to call Regular(MFC Shared) Dll in MC++. I am not able to call the dll functions in my mc++ program
One of my dll signature function is like this
extern "C" const double* PASCAL EXPORT ComputePolynomial(double* first, int fLen, double* second, int sLen);
and in MC++ I am calling like below. But I am getting compile time errors saying that
Error 2 error LNK2019: unresolved external symbol "extern "C" double const * __cdecl ComputePolynomial(double *,int,double *,int)"
My Calling Code
#include "stdafx.h"
using namespace System;
extern "C" const double* ComputePolynomial(double* first, int fLen, double* second, int sLen);
int main(array<System::String ^> ^args)
{
Console::WriteLine(L"Hello
double* x=new double[3];
x[0]=1;x[1]=2;x[2]=3;
const double* z1= ComputePolynomial(x,3,x,3)
// TODO: code your application's behavior here.
for(int i=0;i<5;i++)
{
System::Console::WriteLine
z1++;
}
return 0;
}
I have included .lib file and .dll file also in my project. So please help like how to fix this issue
Thanks
Sudhakar
Note:: if i put _cdecl or PASCAL EXPORT, then I am getting some other errors.
This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.
Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.
If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.
Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.
Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.
Access the answers to your technology questions today.
30-day free trial. Register in 60 seconds.
Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.
Try it out and discover for yourself.
30-day free trial. Register in 60 seconds.
Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.
Hello!
it's better to use [DllImport...] directive. Please, have a look at:
http://www.devx.com/dotnet
http://www.codeguru.com/cs
or it's also possible without DllImport, using callback functions:
http://www.codeproject.com
Business Accounts
Answer for Membership
by: AlexFMPosted on 2006-09-03 at 01:41:12ID: 17444811
Dll function must be defined as:
extern "C"
__declspec( dllexport ) const double* __stdcall ComputePolynomial(double* first, int fLen, double* second, int sLen);
Add line
#include <windows.h>
to client project to compile this definition.
For client project, dllexport should be replaced with dllimport.