// DemoDLL.cpp : Defines the exported functions for the DLL application. // #include "stdafx.h" #include "DemoDLL.h" using namespace std; extern "C" __declspec( dllexport ) char* StringFunc() { ostream *outputStream = NULL; //If you want to output to cout, simply set outputStream to &cout. This allows you to write a program that can switch between outputting to string or to cout. //outputStream = &cout; ostringstream *stringStream = new ostringstream(); outputStream = stringStream; (*outputStream) << "String DLL function is working" << endl << endl; string output = (*stringStream).str(); const char* outputStr = output.c_str(); char* out = new char[output.size()+1]; strcpy(out, outputStr); out[output.size()] = '\0'; return out; } extern "C" __declspec( dllexport ) void VoidFunc() { printf("Void DLL function is working, using printf to display. You will only see this if you run locally.\n\n"); return; } extern "C" __declspec( dllexport ) wchar_t* WStringFunc() { wostream *outputStream = NULL; //If you want to output to wcout, simply set outputStream to &cout. This allows you to write a program that can switch between outputting to wstring or to wcout. outputStream = &wcout; wostringstream *stringStream = new wostringstream(); outputStream = stringStream; (*outputStream) << L"WString DLL function is working" << endl << endl; wstring output = (*stringStream).str(); const wchar_t* outputStr = output.c_str(); wchar_t* out = new wchar_t[output.size()+1]; wcscpy(out, outputStr); out[output.size()] = '\0'; return out; }