Lỗi Chưa khai báo (undefined reference )

Em có một code, em đã khai báo 3 cái ở *.h

• DrawMiniMapWindow
• MiniMapCheck
• CombinedChecks

Nhưng khi build nó báo lỗi undefined reference

Ở Các chỗ này

ePLAYER_POINT, eLORENCIA_MAP, eDUNGEON_MAP, eDEVIAS_MAP, eNORIA_MAP, eLOSTTOWER_MAP, eSTADIUM_MAP, eATLANS_MAP, eTarkan_MAP, eAida_MAP,eBarraks_MAP

Làm sao khai báo nó ở file *.h vậy ạ cảm ơn các anh?

File *.cpp

void Interface::Load()
{
    this->BindObject(eMINI_MAP_BG, 0x7882, 138, 265, -1, -1);
    this->BindObject(ePLAYER_POINT, 0x7883, 3, 3, -1, -1);
    // ----
    this->BindObject(eNULL_MAP, 0x7884, 128, 128, -1, -1);
    // ----
    this->BindObject(eLORENCIA_MAP, 0x7885, 128, 128, -1, -1);
    // ----
    this->BindObject(eDUNGEON_MAP, 0x7886, 128, 128, -1, -1);
    // ----
    this->BindObject(eDEVIAS_MAP, 0x7887, 128, 128, -1, -1);
    // ----
    this->BindObject(eNORIA_MAP, 0x7888, 128, 128, -1, -1);
    // ----
    this->BindObject(eLOSTTOWER_MAP, 0x7889, 128, 128, -1, -1);
    // ----
    // Reserved 0x788A for EXILE
    // ----
    this->BindObject(eSTADIUM_MAP, 0x788B, 128, 128, -1, -1);
    // ----
    this->BindObject(eATLANS_MAP, 0x788C, 128, 128, -1, -1);
}

void Interface::Work()
{
    gInterface.DrawMiniMapWindow();
}

void Interface::LoadImages()
{
    pLoadImage("Custom\Interface\MiniMapUI.tga", 0x7882, 0x2601, 0x2900, 1, 0);
    // ----
    pLoadImage("Custom\Maps\PlayerPoint.jpg", 0x7883, 0x2600, 0x2900, 1, 0);
    // ----
    pLoadImage("Custom\Maps\MiniMapNull.tga", 0x7884, 0x2601, 0x2900, 1, 0);
    // --
    pLoadImage("Custom\Maps\MiniMap0.tga", 0x7885, 0x2601, 0x2900, 1, 0);
    // --
    pLoadImage("Custom\Maps\MiniMap1.tga", 0x7886, 0x2601, 0x2900, 1, 0);
    // --
    pLoadImage("Custom\Maps\MiniMap2.tga", 0x7887, 0x2601, 0x2900, 1, 0);
    // ----
    pLoadImage("Custom\Maps\MiniMap3.tga", 0x7888, 0x2601, 0x2900, 1, 0);
    // ----
    pLoadImage("Custom\Maps\MiniMap4.tga", 0x7889, 0x2601, 0x2900, 1, 0);
    // ----
    // Exile Map 0x788A
    // ----
    pLoadImage("Custom\Maps\MiniMap6.tga", 0x788B, 0x2601, 0x2900, 1, 0);
    // ----
    pLoadImage("Custom\Maps\MiniMap7.tga", 0x788C, 0x2601, 0x2900, 1, 0);
}

bool Interface::MiniMapCheck()
{
    if(this->CheckWindow(Inventory) ||
        this->CheckWindow(CashShop) ||
        this->CheckWindow(ChaosBox) ||
        this->CheckWindow(Character) ||
        this->CheckWindow(CommandWindow) ||
        this->CheckWindow(ExpandInventory) ||
        this->CheckWindow(ExpandWarehouse) ||
        this->CheckWindow(FullMap) ||
        this->CheckWindow(GensInfo) ||
        this->CheckWindow(Guild) ||
        this->CheckWindow(NPC_Dialog) ||
        this->CheckWindow(NPC_Julia) ||
        this->CheckWindow(NPC_Titus) ||
        this->CheckWindow(OtherStore) ||
        this->CheckWindow(Party) ||
        this->CheckWindow(PetInfo) ||
        this->CheckWindow(Shop) ||
        this->CheckWindow(SkillTree) ||
        this->CheckWindow(Store) ||
        this->CheckWindow(Trade) ||
        this->CheckWindow(Warehouse) )
        return true;
    return false;
}

bool Interface::CombinedChecks()
{
    if( (this->CheckWindow(Inventory) 
        && this->CheckWindow(ExpandInventory) 
        && this->CheckWindow(Store)) || 
        (this->CheckWindow(Inventory) 
        && this->CheckWindow(Warehouse) 
        && this->CheckWindow(ExpandWarehouse)) || 
        (this->CheckWindow(Inventory) 
        && this->CheckWindow(Character) 
        && this->CheckWindow(Store)) )
        return true;
    return false;
}

void Interface::DrawMiniMapWindow()
{
    float MainWidth            = 138.0;
    float MainHeight        = 265.0;
    float StartY            = 264.0;
    float StartX            = 512.0;
    // ----
    if( this->MiniMapCheck() || this->CombinedChecks() )
    {
        return;
    }
    // ----
    switch(gObjUser.m_MapNumber)
    {
        case 0:    //Lorencia
        {
            this->DrawGUI(eLORENCIA_MAP, StartX, StartY + 30);
        }
        break;
        // --
        case 1:    //Dungeon
        {
            this->DrawGUI(eDUNGEON_MAP, StartX, StartY + 30);
        }
        break;
        // --
        case 2:    //Devias
        {
            this->DrawGUI(eDEVIAS_MAP, StartX, StartY + 30);
        }
        break;
        // --
        case 3:    //Noria
        {
            this->DrawGUI(eNORIA_MAP, StartX, StartY + 30);
        }
        break;
        // --
        case 4:    //LostTower
        {
            this->DrawGUI(eLOSTTOWER_MAP, StartX, StartY + 30);
        }
        break;
        // --
        case 5:    //Exile (disabled)
        {
            return;
        }
        break;
        // --
        case 6:    //Stadium
        {
            this->DrawGUI(eSTADIUM_MAP, StartX, StartY + 30);
        }
        break;
        // --
        case 7:    //Atlans
        {
            this->DrawGUI(eATLANS_MAP, StartX, StartY + 30);
        }
        break;
        // --
        default: //Default
        {
            this->DrawGUI(eNULL_MAP, StartX, StartY + 30);
        }
        break;
    }
    // ----
    this->DrawGUI(eMINI_MAP_BG, StartX, StartY);
    this->DrawGUI(ePLAYER_POINT, (float)(StartX - 1 + gObjUser.lpViewPlayer->MapPosX / 2), (float)(294 - 1 + ( 255 - gObjUser.lpViewPlayer->MapPosY ) / 2) );
}