Problem with variables

[electrico]

This is my gui conde. Dont be negative, I am just beginner. So, here it is

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#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <GuiConstants.au3>
#include <Date.au3>
#include <EditConstants.au3>
#include <Inet.au3>
Local $drive, $mygui, $button1, $button2, $button5, $button4, $drive2, $drive3, $drive4,  $dateis, $button3, $shedit, $label1, $label3, $myip, $button6, $label_a, $label_b
Opt("GuiOnEventMode", 1)
Opt("MustDeclareVars", 1)
GuiCreate ("For You", 220, 230)
    GuiSetState (@SW_SHOW)
    GuiSetOnEvent($GUI_EVENT_CLOSE, "Close")
$label1 = GuiCtrlCreateLabel ("Check free space:", 20, 20)
GuiCtrlSetColor ($label1, 0xcc00cc)
$button1 = GuiCtrlCreateButton ("Drive E:", 20, 50)
GuiCtrlSetOnEvent ($button1, "checkfreespaceone")
$button2 = GuiCtrlCreateButton ("Drive D:", 90, 50)
GuiCtrlSetOnEvent ($button2, "checkfreespaceond")
$button5 = GuiCtrlCreateButton ("Drive C:", 20, 90)
GuiCtrlSetOnEvent ($button5, "checkfreespaceonc")
$button4 = GuiCtrlCreateButton ("Drive F:", 90, 90)
GuiCtrlSetOnEvent ($button4, "checkfreespaceonf")
$myip = _GetIP()
$dateis = _DateAdd ("d", 0, _NowCalcDate())
$label_a = GuiCtrlCreateLabel ("Today's date is:       " & $dateis, 20, 210)
$label_b = GuiCtrlCreateLabel ("Your IP adress is:     " & $myip, 20, 140)
$Label3 = GuiCtrlCreateLabel ("Turn off PC after: ", 20, 170)
$shedit = GuiCtrlCreateEdit ("", 130, 170, 30, 20)
$button3 = GuiCtrlCreateButton ("Set", 170, 170, 30, 20)
GuiCtrlSetOnEvent($button3 , "shutdowncpu")
$button6 = GuiCtrlCreateButton ("TEST SH", 180, 70)
GUICtrlSetOnEvent ($button6, "testnow")
Func testnow()
    MsgBox (0, "Only test", $button4)
EndFunc
Func shutdowncpu()
    $readstate = $shedit
    GuiCtrlSetState ($button1, $GUI_DISABLE)
    GuiCtrlSetState ($button2, $GUI_DISABLE)
    GuiCtrlSetState ($button3, $GUI_DISABLE)
    GuiCtrlSetState ($shedit, $GUI_DISABLE)
    GuiCtrlSetState ($label3, $GUI_DISABLE)
    GuiCtrlSetState ($button5, $GUI_DISABLE)
    GuiCtrlSetState ($button4, $GUI_DISABLE)
    GuiCtrlSetState ($label_a, $GUI_DISABLE)
    GuiCtrlSetState ($label_b, $GUI_DISABLE)
    Sleep (3000)
    GuiSetState (@SW_MINIMIZE)
    MsgBox (64, "Information:", "Computer will be turned off automatically after " & $readstate  & " minutes")
    Sleep ($readstate)
    MsgBox (0, "Test", "Cpu is off now")
EndFunc
Func checkfreespaceone()
    $drive = DriveSpaceFree ("E:\")
If $drive < 1000.0 Then
MsgBox (48, "Free space on drive E:", "There is only " & $drive & " MB free space." & @CRLF & "For normal CPU functioning you should have at least 1 GB free space.")
ElseIf $drive > 1000.0 Then
    MsgBox (64, "Free space on drive E:", "There is " & $drive & " MB free space.")
EndIf
EndFunc
Func checkfreespaceond()
    $drive2 = DriveSpaceFree ("D:\")
MsgBox (64, "Free space on drive D:", "There is " & $drive2 & " MB free space.")
EndFunc
Func Close()
    Exit
EndFunc
Func checkfreespaceonf()
    $drive3 = DriveSpaceFree ("F:\")
MsgBox (64, "Free space on drive F:", "There is " & $drive3 & " MB free space.")
EndFunc
Func checkfreespaceonc()
    $drive4 = DriveSpaceFree ("C:\")
MsgBox (64, "Free space on drive C:", "There is " & $drive4 & " MB free space.")
EndFunc
While 1
    sleep (10)
WEnd

And now please answer me, why when I calling varibale in message box, it shows me that variable $shedit = 11, but variable $button4 = 7 (????) What it is and how to make to read GuiCtrlCreateEdit as number and display written number in message box???

[Zedna]

$number = GUICtrlRead($shedit)

[electrico]

As always.. hard to find out when alone. Thank you, really!