[GUI]Tastendruck nach Timer klappt nicht

#include <GUIConstantsEx.au3>
global $sleeptime = 300
$timer = TimerInit()
$Gui = GUICreate("NosBot", 250, 250, 500, 250)
$drop = GUICtrlCreateCheckbox("Drop", 10, 50, 120, 20)
$sa = GUICtrlCreateCheckbox("Direkt an Nostale senden", 10, 75, 150, 20)
$label = GUICtrlCreateLabel("NosBot",90, 10, 70, 35)
GUICTRLSETFONT(-1,15,800,5)

GUISetState()
While 1
	$droprd = GUICtrlRead($drop)
	$sard = GUICtrlRead($sa)
	$msg = GUIGetMsg()
	Select
		Case $msg = -3
			ExitLoop
		EndSelect
If TimerDiff($timer)>=$sleeptime And $sard = 1 and $droprd = 1 Then
	$timer=TimerInit()
	ControlSend("NosTale", "", "", "{x}")
EndIf
If TimerDiff($timer)>=$sleeptime And $sard = 4 and $droprd = 1 Then
	$timer=TimerInit()
	Send("{x}")
EndIf		
WEnd

#include <GUIConstantsEx.au3>

GUICreate("NosBot", 250, 250)
$ckb_Drop = GUICtrlCreateCheckbox("Drop", 10, 50, 120, 20)
$ckb_Send = GUICtrlCreateCheckbox("Direkt an Nostale senden", 10, 75, 150, 20)
GUICtrlCreateLabel("NosBot",90, 10, 70, 35)
GUICtrlSetFont(-1, 15, 800, 5)
GUISetState()

$dwSleepTime	= 300
$qwTimer 	= TimerInit()

While Sleep(50)
	$nMsg = GUIGetMsg()
	Switch $nMsg
		Case $GUI_EVENT_CLOSE
			Exit
	EndSwitch

	If TimerDiff($qwTimer) >= $dwSleepTime And GUICtrlRead($ckb_Drop) == $GUI_CHECKED Then
		If GUICtrlRead($ckb_Send) == $GUI_CHECKED Then
			Send("{x}")
		Else
			ControlSend("NosTale", "", "", "{x}")
		EndIf

		$qwTimer = TimerInit()
	EndIf
WEnd