请键盘兄来帮帮我

njyang

在UG中有个函数UF_UI_create_filebox的最后一个参数.
int *  response Output UF_UI_OK: OK was selected
                                UF_UI_CANCEL: CANCEL was selected  
我将写入文件名后点"确定"时,生成文件,点"取消"却报错.为何?
char filter_string[132] = "*.txt";
    char filename[132];
    int response;
    int rc = 0;
    char msg[132];
  FILE *fp;
  
     if ( UF_initialize() != 0)  
          return ( UF_UI_CB_CONTINUE_DIALOG );
  
     /* ---- Enter your callback code here ----- */
     rc =UF_UI_create_filebox (" ",
                               "My dialog title",
                               filter_string,
                               "my_default_name",
                               filename,
                               [$response)]
  if(rc)
    {
        UF_get_fail_message(rc, msg);
        printf("error = %s\n", msg);
    }
    
    if((fp=fopen(filename,"w"))==NULL)
  {
    printf("can't open file\n\n");
    exit(0);
  }
   fwrite(response,10,1,fp);  
   fclose(fp);

深夜摔键盘

leechongqing