step1: create a bitmap resource with the images
           
           you can also use icons or even create the images at run time.
           the size of the images should be in proportion to the height
           of the label.
    step2: add member variable of type Cimagelist
           
            protected:
                      CImagelist m_imagetab;

    step3:  Override OnInitDialog() and add code to it

            bool CmyPropSheet::OnInitDialog()
            {
                bool bresult=CProperttySheet::OnInitDialog();
                m_imagetab.create(IDB_TABIMAGES,13,1,RGB(255,255,255));
                CTabCtrl *pTab=GetTabControl();
                pTab->SetImageList(&m_imagetab);
                
                tc_item tcitem;
                tcitem.mask=tcif_image;
                
                for(int i=0;i<3;i++)
                {  
                    tcitem.iimage=i;

                     pTab->SetItem(i,&tcitem);
                }
                return bresult;
              }

C++Builder 没有提供 SetImageList，SetItem这样的函数，但我们可以直接处理WINDOWS API 消息：TCM_SETIMAGELIST，TCM_SETITEM. 看下面的代码可以体会不同的编程风格。

void __fastcall TForm1::FormPaint(TObject *Sender)
{


    TabControl1->Perform ( TCM_SETIMAGELIST, 0, ImageList1->Handle );
    TCITEM tcitem;
    tcitem.mask=TCIF_IMAGE ;
    for(int i=0;i<3;i++)
    {
        tcitem.iImage=i;
        TabControl1->Perform ( TCM_SETITEM, i,(LPARAM) (LPTCITEM)     &tcitem );

     }

}