I found the answer, so this is how I proceeded :
private:
CImageList m_imagelist;
CToolBar m_toolbar;
&
enum { width = 20, height = 20 };
m_toolbar.Create(this);
m_imagelist.Attach(
ImageList_LoadImage(
AfxGetInstanceHandle(), MAKEINTRESOURCE(IDB_BITMAP1), width, 4,
CLR_DEFAULT, IMAGE_BITMAP, LR_CREATEDIBSECTION | LR_LOADTRANSPARENT )
);
m_toolbar.SetSizes(CSize(width+7,height+7), CSize(width,height));
m_toolbar.GetToolBarCtrl().SetImageList(&m_imagelist);
const UINT cmdIds[] = {
IDOK,
0, IDCANCEL,
};
m_toolbar.SetButtons(cmdIds, sizeof(cmdIds)/sizeof(UINT));
RepositionBars(AFX_IDW_CONTROLBAR_FIRST, AFX_IDW_CONTROLBAR_LAST, 0);