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Slider returning strange values!

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Hello!

Please help me with this small problem I've encountered while learning to make GUI.

I'm not able to get the set slider values out of sliders and I can't figure out why.
The slider value in the example is preset to 1, but whatever I set the slider to, it returns the value 3 when I click Apply and I havn't set any value to 3.

Where is that 3 coming from?
 

#include <SliderConstants.au3>
#include <MsgBoxConstants.au3>
#include <GUIConstantsEx.au3>

Global $LRSlider

Opt("GUIOnEventMode", 1)

Global $Form1 = GUICreate("test slider", 200, 200, -1, -1)
Global $LRSlider = GUICtrlCreateSlider(50, 50, 100, 20, $TBS_TOOLTIPS)
GUICtrlSetLimit($LRSlider, 50, 1)
GUICtrlSetData($LRSlider, 1)
GUISetOnEvent($GUI_EVENT_CLOSE, "Exit1")

Global $ApplyButton = GUICtrlCreateButton("APPLY", 100, 150, 89, 17)
GUICtrlSetOnEvent($ApplyButton, "Apply")

GUISetState(@SW_SHOW)

Func Apply()
    GUICtrlRead($LRSlider)
    MsgBox(0, 0, $LRSlider)
    GUICtrlSetData($LRSlider, $LRSlider)
EndFunc   ;==>Apply

Func Exit1()
    Exit
EndFunc   ;==>Exit1

While 1
    Sleep(200)
WEnd

 

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