Hi, I have created my tabs, but how would i add controls to each of the tabs?

Code:
    HWND hWndTab = CreateWindowEx(0, "SysTabControl32", "",
									WS_CHILD | WS_CLIPSIBLINGS | WS_VISIBLE,
									0, 20, 500, 250,
									hWndDiag, NULL, hDiagInst, NULL);

    TCITEM tie;
    tie.mask = TCIF_TEXT;
    tie.pszText = "STUFF 1";
    TabCtrl_InsertItem(hWndTab, 0, &tie);

    tie.mask = TCIF_TEXT;
    tie.pszText = "STUFF 2";
    TabCtrl_InsertItem(hWndTab, 1, &tie);