//Item structure .h
#include <fstream>
#include <string>
#include <queue>
//This is the structure of an Item


using namespace std;

class ItemsData
{
      protected:

struct item
 {
      int id;
      string name;
      int wieght;
      int value;
      char type;
      int para1;
      int val1;
      int para2;
      int val2;
      bool key;
};

private:
queue<item> ItemDataBase;

public:
       
ItemsData(){LoadItems();}


void MakeItem(string iname, int iwieght, int ival, char type)
{
    item nItem;
    item hItem = ItemDataBase.back();
    nItem.id = hItem.id + 1;
    nItem.name = iname;
    nItem.wieght = iwieght;
    nItem.value = ival;
    nItem.type = type;
    nItem.key = false;
    ItemDataBase.push(nItem);
}

void MakeItem(string iname, int iwieght, int ival, char type, bool key)
{
    item nItem;
    item hItem = ItemDataBase.back();
    nItem.id = hItem.id + 1;
    nItem.name = iname;
    nItem.wieght = iwieght;
    nItem.value = ival;
    nItem.type = type;
    nItem.key = true;
    ItemDataBase.push(nItem);
}

bool SaveItems()
{
    fstream fptr;
    fptr.open("items.idb", ios::binary|ios::out|ios::trunc);
    if(fptr.bad())
    return false;
    item tItem;
    while(!ItemDataBase.empty())
    {
    tItem = ItemDataBase.front();
    fptr.write((char *)(&tItem), sizeof(item));
    ItemDataBase.pop();
    }
    
    fptr.close();
    return true;
     
}
    
bool LoadItems()
{
    fstream fobj;
    fobj.open("items.idb",ios::binary|ios::in);
    if(fobj.bad())
    
    return false;
    while((fobj.eof()==false))
    {
    ItemDataBase.push(fobj.read((char *)(&item), sizeof(item) ));
    }
    fobj.close();
    return true;
    
}
};

[\source]

Sorry, I have already posted in for beginners, and noone knew what it was or suggested a solution. Feel free to ridicule, but my feelings bruse easily. 

bool LoadItems(){    fstream fobj;    fobj.open("items.idb",ios::binary|ios::in);    if(fobj.bad())    item myItem;    return false;    while((fobj.eof()==false))    {    ItemDataBase.push(fobj.read((char *)(&myItem), sizeof(item) ));    }    fobj.close();    return true;    }};[\source]Compiler: Default compilerBuilding Makefile: "C:\Dev-Cpp\projects\1\Makefile.win"Executing  make...make.exe -f "C:\Dev-Cpp\projects\1\Makefile.win" allg++.exe -c main.cpp -o main.o -I"lib/gcc/mingw32/3.4.2/include"  -I"include/c++/3.4.2/backward"  -I"include/c++/3.4.2/mingw32"  -I"include/c++/3.4.2"  -I"include"   In file included from main.cpp:8:item.h: In member function `bool ItemsData::LoadItems()':item.h:90: error: `myItem' undeclared (first use this function)item.h:90: error: (Each undeclared identifier is reported only once for each function it appears in.)make.exe: *** [main.o] Error 1Execution terminated

bool LoadItems(){    fstream fobj;    fobj.open("items.idb",ios::binary|ios::in);    item myItem;        if(fobj.bad())    return false;    while((fobj.eof()==false))    {    ItemDataBase.push(fobj.read((char *)(&myItem), sizeof(item)));    }    fobj.close();    return true;    }[\source]