Salve,sto provando a creare una dll,il codice dovrebbe solo dire "hello world",ma mi da i seguenti errori di compilazione:
codice:
E:\Cpp\Sys64\main.cpp|7|error: function 'void HelloWorld()' definition is marked dllimport|
E:\Cpp\Sys64\main.cpp||In function 'void HelloWorld()':|
E:\Cpp\Sys64\main.cpp|7|warning: 'void HelloWorld()' redeclared without dllimport attribute: previous dllimport ignored|
||=== Build finished: 1 errors, 1 warnings ===|
Questo è il codice della main:
codice:
/* Replace "dll.h" with the name of your header */
#include "dll.h"
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
DLLIMPORT void HelloWorld ()
{
MessageBox (0, "Hello World from DLL!n", "Hi", MB_ICONINFORMATION);
}
BOOL APIENTRY DllMain (HINSTANCE hInst /* Library instance handle. */ ,
DWORD reason /* Reason this function is being called. */ ,
LPVOID reserved /* Not used. */ )
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
MessageBox(0, "Hello world!!!!", "DLL Loaded", MB_OK); return TRUE;
case DLL_PROCESS_DETACH:
break;
case DLL_THREAD_ATTACH:
break;
case DLL_THREAD_DETACH:
break;
}
/* Returns TRUE on success, FALSE on failure */
return TRUE;
}
E questo l' header dll.h:
codice:
#ifndef _DLL_H_
#define _DLL_H_
#if BUILDING_DLL
# define DLLIMPORT __declspec (dllexport)
#else /* Not BUILDING_DLL */
# define DLLIMPORT __declspec (dllimport)
#endif /* Not BUILDING_DLL */
DLLIMPORT void HelloWorld (void);
#endif /* _DLL_H_ */
In pratica dopo che ho compilato la dll voglio provare a eseguire il processo come fosse una dll,ma non viene nemmeno compilata.