I use devcpp 4.9.9.2. I've never had any experience creating dlls
before. Whenever I start a dll project I have a basic template built
there (in the header file) which goes like:
----dll.h----
#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 */
class DLLIMPORT DllClass
{
public:
DllClass();
virtual ~DllClass(void);
private:
};
#endif /* _DLL_H_ */
----
Why do I have a class template there as such? Can I export this class?
Can I use this class in another program that references this dll? If
so how?
And in the cpp file I have the following code:
----dllmain.cpp----
/* Replace "dll.h" with the name of your header */
#include "dll.h"
#include <windows.h>
DllClass:
llClass()
{
}
DllClass::~DllClass ()
{
}
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:
break;
case DLL_PROCESS_DETACH:
break;
case DLL_THREAD_ATTACH:
break;
case DLL_THREAD_DETACH:
break;
}
/* Returns TRUE on success, FALSE on failure */
return TRUE;
}
----
What is the role of DllMain()? How to use those switches?
--deostroll
