How to scroll a text box programmatically and how to get handles for controls on forms in Access...

I am trying to scroll a text box via code and am having problems getting the text box handle:

dim hd as long
hd = text1.hwnd

Returns an error that 'Object doesn't support the Property or Method'.  

Various internet sites suggest that in VB something like:

SendMessage(Text1.hWnd, EM_LINESCROLL, 0, 5&)

should work but in VBA I can't get hwnd returns on any controls on an Access form, 2003 or 2007.  Any suggestions??? Thanks!