#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
#include <WinAPIGdi.au3>
#include <WindowsConstants.au3>
#include <StaticConstants.au3>
#include <Sound.au3>
#include <MsgBoxConstants.au3>
#include <GuiComboBox.au3>
#include <EditConstants.au3>
#include <ButtonConstants.au3>
#include <WinAPIConstants.au3>
#include <WinAPISysWin.au3>
#include <AVIConstants.au3>
#include <TreeViewConstants.au3>



;	-----------------------------------------------------------------------------------------

_GDIPlus_Startup()
Global Const $SC_DRAGMOVE = 0xF012

$hPNG1 = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\PNG1.png")
$hPNG2 = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\PNG2.png")

$iw1 = _GDIPlus_ImageGetWidth($hPNG1)
$ih1 = _GDIPlus_ImageGetHeight($hPNG1)
$iw2 = _GDIPlus_ImageGetWidth($hPNG2)
$ih2 = _GDIPlus_ImageGetHeight($hPNG2)


$hGUIPNG1 = GUICreate("", $iw1, $ih1, @DesktopWidth-$iW1, @DesktopHeight-($iH1*1.2), -1,  BitOR($WS_EX_LAYERED, $WS_EX_TOOLWINDOW))
_SetBitmap($hGUIPNG1, $hPNG1, 255, $iw1, $ih1)

$hGUIPNG2 = GUICreate("", $iw2, $ih2, -1, -1, -1, $WS_EX_LAYERED)
_SetBitmap($hGUIPNG2, $hPNG2, 255, $iw2, $ih2)


Func _WM_LBUTTONDOWN($hWnd, $iMsg, $wParam, $lParam)
    _SendMessage($hGUIPNG1, $WM_SYSCOMMAND, $SC_DRAGMOVE, 0)
EndFunc   ;==>_WM_LBUTTONDOWN


Func _SetBitmap($hGUI, $hImage, $iOpacity, $n_width = 200, $n_height = 200)
    Local $hScrDC, $hMemDC, $hBitmap, $hOld, $pSize, $tSize, $pSource, $tSource, $pBlend, $tBlend

    $hScrDC = _WinAPI_GetDC(0)
    $hMemDC = _WinAPI_CreateCompatibleDC($hScrDC)
    $hBitmap = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hImage)
    $hOld = _WinAPI_SelectObject($hMemDC, $hBitmap)
    $tSize = DllStructCreate($tagSIZE)
    $pSize = DllStructGetPtr($tSize)
    DllStructSetData($tSize, "X", $n_width)
    DllStructSetData($tSize, "Y", $n_height)
    $tSource = DllStructCreate($tagPOINT)
    $pSource = DllStructGetPtr($tSource)
    $tBlend = DllStructCreate($tagBLENDFUNCTION)
    $pBlend = DllStructGetPtr($tBlend)
    DllStructSetData($tBlend, "Alpha", $iOpacity)
    DllStructSetData($tBlend, "Format", 1)
    _WinAPI_UpdateLayeredWindow($hGUI, $hScrDC, 0, $pSize, $hMemDC, $pSource, 0, $pBlend, $ULW_ALPHA)
    _WinAPI_ReleaseDC(0, $hScrDC)
    _WinAPI_SelectObject($hMemDC, $hOld)
    _WinAPI_DeleteObject($hBitmap)
    _WinAPI_DeleteDC($hMemDC)
EndFunc   ;==>_SetBitmap



;	----------------------------------

GUISetState(@SW_SHOW, $hGUIPNG1)
GUISetState(@SW_SHOW, $hGUIPNG2)

Do
Until GUIGetMsg() = $GUI_EVENT_CLOSE