Fullscreen...

So basically, i dont understand what do i have to add in to the script to make it work in fullscreen mode instead of windowed.

#include <WinAPIEx.au3>
If WinExists(@ScriptName) Then Exit
AutoItWinSetTitle(@ScriptName)
Global $Paused, $counter = 0
HotKeySet("{F3}", "TogglePause")
HotKeySet("{F2}", "Terminate")
Shoot()
Func Shoot()
While 1
If _WinAPI_GetAsyncKeyState(0x02) = True Then
Local $coord = PixelSearch(948, 538, 971, 517,12191508,20)
If Not @error Then
MouseClick("Left")
Sleep(50)
EndIf
EndIf
WEnd
EndFunc
While 1
$counter +=1
WEnd
Func TogglePause()
$Paused = NOT $Paused
While $Paused
sleep(50)
WEnd
ToolTip("")
EndFunc
Func Terminate()
Exit 0
EndFunc

If someone could help abit, by telling me what to do at this point to make it work fullscreen, you can link me some docs about it too and i would love to try to set it up myself. ^^ 

Thanks for spending the 2 minutes of your life reading this thread, and have a good day. (: