GUI label bars dinamically change

[frank10]

I want to dinamically change my vertical labels' height and I got it with this:

GUICreate("test", 900, 600,200,0)


Local $lab = GUICtrlCreateLabel ("",10,400,20,0)
GUICtrlSetBkColor($lab,0xff0000)

GUISetState()

while 1
     Local $LabRand = Random(0,100)
     GUICtrlSetPos($lab,10,400,20,$LabRand)
     Sleep(100)
wend

But this keep the y base for the label at 400 and changes the height toward down, instead I want it to change toward upside.

How could I do this?

Edited June 22, 2012 by frank10

[AZJIO]

GUICreate("test", 900, 600, 200, 0)



Local $lab = GUICtrlCreateLabel("", 10, 400, 20, 0)

GUICtrlSetBkColor($lab, 0xff0000)



GUISetState()



While 1

    Local $LabRand = Random(0, 100)

    GUICtrlSetPos($lab, 10, 400 - $LabRand, 20, $LabRand)

    Sleep(100)

WEnd

[frank10]

Thank you.

I was thinking at all different things, instead it was so easy...