#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <GDIPlus.au3>

_GDIPlus_Startup()
test(1, @ScriptDir&"\"&"Background1.png")
test(2, @ScriptDir&"\"&"Background2.png")
_GDIPlus_Shutdown()

; Exemple n°1 : Fond uni
Func test($n, $path)

	; Création du fond
	Global $background = GUICreate("Exemple n°"&$n&" : $background", 180, 50, Default, Default, $WS_POPUP, $WS_EX_LAYERED)
	Local _
		$image   = _GDIPlus_ImageLoadFromFile($path), _
		$context = _WinAPI_GetDC(0), _
		$memory  = _WinAPI_CreateCompatibleDC($context), _
		$bitmap  = _GDIPlus_BitmapCreateHBITMAPFromBitmap($image), _
		$object  = _WinAPI_SelectObject($memory, $bitmap)
	Local _
		$point  = DllStructCreate("struct;long X;long Y;endstruct"), _
		$size   = DllStructCreate("struct;long X;long Y;endstruct"), _
		$source = DllStructCreate("struct;long X;long Y;endstruct"), _
		$blend  = DllStructCreate("byte Op;byte Flags;byte Alpha;byte Format")
	DllStructSetData($point, "X", (@DesktopWidth-180)/2)
	DllStructSetData($point, "Y", (@DesktopHeight-50)/2)
	DllStructSetData($size,  "X", 180)
	DllStructSetData($size,  "Y", 50)
	DllStructSetData($blend, "Alpha", 255)
	DllStructSetData($blend, "Format", 1)
	_WinAPI_UpdateLayeredWindow($background, $context, DllStructGetPtr($point), DllStructGetPtr($size), $memory, DllStructGetPtr($source), 0, DllStructGetPtr($blend), 2)
	_WinAPI_ReleaseDC(0, $context)
	_WinAPI_SelectObject($memory, $object)
	_WinAPI_DeleteObject($bitmap)
	_WinAPI_DeleteDC($memory)

	; Création des contrôles
	Global $controls = GUICreate("Exemple n°"&$n&" : $controls", 180, 50, 0, 0, $WS_POPUP, BitOR($WS_EX_LAYERED, $WS_EX_MDICHILD), $background)
	GUISetFont(11, 800, 1, "Arial", $controls, 5)
	; Antialiasing OK avec fond plein
	Local $label_ok  = GUICtrlCreateLabel("Test aliasing : OK", 20, 8, 140, 17)
	GUICtrlSetColor($label_ok,   0xFF7777)
	GUICtrlSetBkColor($label_ok, 0xF4FF8A)
	; Antialiasing KO avec fond transparent
	Local $label_ko  = GUICtrlCreateLabel("Test aliasing : KO", 20, 25, 140, 17)
	GUICtrlSetColor($label_ko,   0xFF7777)
	GUICtrlSetBkColor($label_ko, $GUI_BKCOLOR_TRANSPARENT)

	; Finalisation pour affichage
	Local $transparent_color = 0x010203
	GUISetBkColor($transparent_color, $controls)
	_WinAPI_SetLayeredWindowAttributes($controls, $transparent_color)

	; Affichage
	GUISetState(@SW_SHOW, $background)
	GUISetState(@SW_SHOW, $controls)

	; Traitement
	Local $stop = False
	Do
		Local $msg = GUIGetMsg()
		If Not @error Then
			Switch $msg
				Case -3 ; $GUI_EVENT_CLOSE = -3
					$stop = True
				Case Else
					; Rien
			EndSwitch
		EndIf
	Until $stop

	; Effacement
	GUIDelete($controls)
	GUIDelete($background)

EndFunc