怎么编译的时候说MY—ITEM没有定义啊？按照手把手里的操作

mouse19801108

int irc;  
     UF_STYLER_item_value_type_t value;  
     char string[133] = "Input a string here.";  
  
     /* Make sure User Function is available. */   
     if ( UF_initialize() != 0)  
          return ( UF_UI_CB_CONTINUE_DIALOG );
  
     /* ---- Enter your callback code here ----- */
     value.item_id=MY_ITEM;               
     value.item_attr=UF_STYLER_VALUE  ;  
     value.value.string = string;  
     irc = UF_STYLER_set_value(dialog_id, [$value)]  
     if(irc)  
   {  
       char message[132];  
  
       UF_get_fail_message(irc, message);  
   }  
  
     
  
     UF_terminate ();

jambo436

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