;WORKS AS OF VERSION 3.3.14.5



$WDA_NONE = 0x00000000;Imposes no restrictions on where the window can be displayed.
$WDA_MONITOR = 0x00000001;The window content is displayed only on a monitor. Everywhere else, the window appears with no content or may not appear at all.
Local $hGUI

;Usage - Just insert either function with no arguments any time after GUICreate.
Func _preventscreenshot()
	DllCall("user32.dll", "BOOL", "SetWindowDisplayAffinity", "HWnd", $hGUI, "DWORD", $WDA_MONITOR)
EndFunc
Func _allowscreenshot()
	DllCall("user32.dll", "BOOL", "SetWindowDisplayAffinity", "HWnd", $hGUI, "DWORD", $WDA_NONE)
EndFunc