Jet-lag in closing program

[Trax]

I am missing a concept or something. The below main line can sometimes take 20-30 seconds to close after I click on the X. I can see where the delay(500) would keep it from responding for half a

Readini()
$hTimer = TimerInit()
While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit
    EndSwitch
    $NextCheck = ($CheckEvery * 1000) - TimerDiff($hTimer)
    ShowWait()
    If ($NextCheck > 0) Then
        Sleep(500)
        ContinueLoop
    EndIf
    $hTimer = TimerInit()
    CheckForFile()
    If $CopyResult = $Failed Then
        ContinueLoop
    EndIf
    ReadFile()
    If $ReadResult = $Failed Then
        ContinueLoop
    EndIf
WEnd

second but 20-30 seconds? What am I missing? (the functions take no time at all to execute):

[JockoDundee]

ShowWait(), CheckforFile() and ReadFile() are obvious candidates for inspection.

[Jos]

change your gui to event mode and your issue should be gone.

[Trax]

Many thanks