>>>How can I prevent form release or unload ?
>>>
>>>Is a button the only way ?
>>>
>>>I put the code below release or unload but could not achieve what I wanted
>>>
>>>Doesn't "return" abort form unload event ?
>>>
>>>IF thisform.tested = 0
>>> = MESSAGEBOX("Not tested yet")
>>>RETURN
>>> endif
>>
>>Put your conditional check in the form's queryunload() :
>
>Moises,
>
>>

>>IF thisform.ReleaseType = 0  and [ my condition ] && to allow release by x in the right top corner
>>    nodefault
>>    return .f.
>>ENDIF
>>

Nice addition Naomi. I like it. Thanks :o)

This worked in my testing (to prevent closing by the control box):

IF thisform.ReleaseType = 1 AND thisform.noexit  && 1 = close menu command or close box, 0 = var released, 2 = exit VFP
	nodefault
	return .f.
ENDIF