static void do_ugopen_api(void)
{
    UF_FEATURE_SIGN sign=UF_NULLSIGN;
    double block_org[3]={0.0,0.0,0.0};
    char *block_len[3]={"1","2","3"};
    tag_t blk_obj;
    UF_CALL(UF_MODL_create_block1(sign,block_org,block_len,&blk_obj));
}

extern DllExport void ufusr( char *parm, int *returnCode, int rlen )
{
    /* Initialize the API environment */
    if( UF_CALL(UF_initialize()) ) 
    {
        /* Failed to initialize */
        return;
    }
    
    /* TODO: Add your application code here */

    do_ugopen_api();

    /* Terminate the API environment */
    UF_CALL(UF_terminate());
}