how to show and hide tab control in mfc

struct ITEM
    {
        //HWND h;
        CWnd* wnd;      //our control
        int nID;
        int iTab;       //which tab it belongs to
        BOOL bTabStop;  //does this control allow tabstop
    };

m_cTab.InsertItem(0,"Register new user");
	m_cTab.InsertItem(1,"Identify fingerprints");



void CMyTabCtrl::ShowTab(int iTab)
{
	
	iCtrl = -1;//reset any control which may be selected in a tab

	if(iCurrentTab == iTab)//already focused on selected tab
	{
		return;
	}
	//save old tab location so we can hide its controls
	int iOldTab = iCurrentTab;
	iCurrentTab = iTab;
		
	//check if tab is in focus, if not, put it in focus
	int t = GetCurFocus();
	if(iTab != t)
	{
		SetCurSel(iTab);
	}

	//hide old tabs controls, show the selected tab's controls
	INT_PTR iCount = obArray.GetCount();
	for(INT_PTR i=0; i<iCount; i++)
	{
		
		ITEM* pItem = (ITEM*)obArray[i];
		if(pItem->iTab == iOldTab)
		{
			pItem->wnd->ShowWindow(SW_HIDE);
		}
		else if(pItem->iTab == iCurrentTab)
		{
			pItem->wnd->ShowWindow(SW_SHOW);
		}
	}
}