Can't get Gmail Iframes

[LubeLee]

I logined to Gmail, then I tried to get its iframes, but no success

$ifrs = _IEFrameGetCollection($oIE)

MsgBox(0, 1, @extended)

Local $ifr

For $ifr In $ifrs

MsgBox(0, 1, $ifr.id) // I run this code but there is no msgbox here [HELP ME TO EXPLAIN THIS]

If $ifr.id == "canvas_frame" Then ExitLoop

Next

I run the code but there is no MsgBox at MsgBox(0, 1, $ifr.id). So I can't do anything more. Because as we know Gmail organized by iframes. If you fail to get iframe, you can do no more.

Thanks for your help,

[LubeLee]

Please help me. No one here can help me