Change data of a control

[Synthesis]

How do I change data of a control?

Example (just an example, not real)

$variable = "Normal text"

$variable1 = "New text"

$inputbox = guictrlcreateinput ($variable, 10,10)

$button = guictrlcreatebutton ("Change data of the control",50,50)

If the button is pressed, $variable will receive what $variable1 has and display in the input box "New text".

[Yashied]

GUICtrlSetData()