Hi,
I did it on Win32-SDK based programs...Steps are
1.Create tooltip window in WM_INITDIALOG as-
hWndToolTip = CreateWindowEx(0, TOOLTIPS_CLASS,NULL, WS_POPUP |TTS_NOPREFIX|TTS_ALWAYSTIP, CW_USEDEFAULT, CW_USEDEFAULT, 10, 10, hDlg, NULL, hIsntance, NULL);
Then fill the names of controls in...