Update:
I created a form.left_access method and put the code in there and it works

Peter


No the resize works i tried the form.move event. And again it does do nothing

*form.move
LPARAMETERS nLeft, nTop, nWidth, nHeight
IF NOT ISNULL(THISFORM.oChildForm1) AND VARTYPE(THISFORM.oChildForm1.NAME) = 'C'

	THISFORM.oChildForm1.TOP = m.nTop
	THISFORM.oChildForm1.LEFT = m.nLeft + m.nWidth + SYSMETRIC(12) * 2 + 10
	THISFORM.oChildForm1.HEIGHT = m.nHeight



ENDIF

the parent form moves but the childform1 stays put!
Update: as a matter of fact noth seems to get executes in Move
I put a wait window in there and it does not come up when the forma get moved

Peter
>>I have a form in vfp9 and from a button I open another (child) form
>>no in this case I want the child to butt on the right side and the same top and height.
>>that's easy and working
>>
>>but now when I change the height of the parent form I want the child form to change its height
>>\it does not worj in resize (I guess at that time the form's own height has not changed. I tried it in Paint
>>still not working
>
>Putting in Resize() should work just fine (I just tested it). Are you sure This.lPrivOpen is true?