windows dll share data , using pelles C 7.0R

/*
   dll file must using same folder's dll,
   X:/xx/xxx/my_dll.dll
   O:/ooo/oo/my_dll.dll
 my_dll.dll  =content=  mydll.dll
but loading to memory , it's two different dll.
*/
 
/* below is dll key function and compiler option */
/*
compiler option :  Enable microsoft extension ,   calling conv: __cdecl

*/

#pragma data_seg(".shared")
    int share_var_k = 0;
#pragma data_seg()
#pragma comment(linker, "/section:.shared,RWS")


DLLAPI int WINAPI get_share_var(void)
{   
     return share_var_k;
}

DLLAPI void WINAPI set_share_var(int value)
{   
     share_var_k = value;
}





/* ---- cut ---- */





/* -------------- below is test file function ------*/

int main(int argc, char *argv[])
{
    printf("Hello, world!\n");
    for(int i=0;i<25 br="" i="">    {
        int value=0;
        set_share_var(i);
        Sleep(1000);
        value = get_share_var();
        printf("%d\r\n",value);
    }
    return 0;