SV *g_rec = 0, *g_play = 0;

int setHooks( SV* rec, SV* play ) {
    HANDLE hHook = GetModuleHandle( "hook" );

    printf( "SH rec:%x\n", rec );
    g_rec =  rec;
    SvREFCNT_inc( g_rec );
    printf( "SH g_rec:%x\n", g_rec );

//    SvREFCNT_inc( g_play = play );
    ...
}