>>>Is there a way to limit form to be moved above some point?
>>>Like when you dock a toolbar on top of the _screen and you can't move the form below it.
>>>I tried to put in Moved event this.Top = something but if tje use holds the mouse button and continue drag the mouse there is a very ugly flickering.
>>>TIA
>>
>>

>>* Form.Moved()
>>DoDefault()
>>if This.Left < 0
>>	This.Left = 0
>>endif
>>

>>
>>The result looks weird, but the user can't move the form beyond the left edge, in this case.
>
>Yep,I have something like this and I got what I want, but the _screen flickering very ugly.
>I tried with _screen.LockScreen = .f. and with LockWindowUpdate() API w/o any luck -(

Here is my solution, with the Timer:

* Form.Moved()
with ThisForm.Timer1
	.Enabled = .T.
	.Reset()
endwith

* Form.Timer1:
.Enabled = .F.

.Interval = 500 && ms

* Timer Event:
This.Enabled = .F.
if ThisForm.Left < 0
	ThisForm.Left = 0
endif

You would have to add code for the other 3 screen borders.