LIB file cannot be created in a process making a DLL

[atzsea]

I'm a beginner in C++, learning making a DLL.

I prepared two files: beepdll.cpp and beepdll.def

// beepdll.cpp

#include <windows.h>

// Entry Point

BOOL WINAPI DllMain(HINSTANCE hDLL, DWORD dwReason, LPVOID lpReserved)
{
    return TRUE;
}

// beep

void __stdcall beep(DWORD dwCounter)
{
    DWORD loop;

    for(loop=0; loop<dwCounter; loop++)
    {
        Beep(400, 100);
        Sleep(1000);
    }
}

; beep.def

LIBRARY   beepdll

EXPORTS
	beep	@3

I set a project named beepdll in Visual Studio 2005 C++ Win32.
At this time, I did Build(in Release).
beepdll.dll was created, but beepdll.lib was not, which should be created.
I cannot have configured out the reason.

 

[NullTerminator]

I find it easier to export things using __declspec

void __declspec(dllexport) beep(DWORD dwCounter)
{
    DWORD loop;
    for(loop=0; loop<dwCounter; loop++)    {
        Beep(400, 100);
        Sleep(1000);
    }
}

And to simplify usage by clients,
add _BUILDING_MY_DLL to the C++ Preprocessor defs in your dll project, an NOT in the clients using the dll.
put your declaration in the header like this

#ifdef _BUILDING_MY_DLL
    #define LINKAGE __declspec(dllexport)
#else
    #define LINKAGE __declspec(dllimport)
#endif

void LINKAGE beep(DWORD dwCounter);

and the implmentation like

void beep(DWORD dwCounter){
    DWORD loop;
    for(loop=0; loop<dwCounter; loop++)    {
        Beep(400, 100);
        Sleep(1000);
    }
}