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#include <GDIPlus.au3>
#include <WindowsConstants.au3>
#include <GuiConstantsEx.au3>
 
Opt("GuiOnEventMode", 1)
HotKeySet("{ESC}", "_Terminate")

InetGet("http://cdn.portableapps.com/WinPenguinsPortable_128.png", @tempdir & "\WinPenguinsPortable_128.png")

Global $oldsens, $sens = Random(1, 4, 1)
Global $gui, $hImage, $imgW, $imgH
$gui = GUICreate("Test", 128, 128, -1, 20, $WS_POPUP, BitOr($WS_EX_LAYERED, $WS_EX_TOPMOST))

_GDIPlus_Startup()
$hImage = _GDIPlus_ImageLoadFromFile(@tempdir & "\WinPenguinsPortable_128.png")
$imgW = _GDIPlus_ImageGetWidth ($hImage)
$imgH = _GDIPlus_ImageGetHeight($hImage)
SetBitMap($gui, $hImage, 255)
$label = GuiCtrlCreateLabel("", 0, 0, 128, 128)
GUICtrlSetBkColor($label, $GUI_BKCOLOR_TRANSPARENT)
GUICtrlSetState($label, $GUI_ONTOP)
$contextmenu = GUICtrlCreateContextMenu($label)
$exit = GUICtrlCreateMenuItem("Exit", $contextmenu)
 GUICtrlSetOnEvent(-1, "_Terminate")
GUISetState()


While 1
   _Bouge()
   _ChangeDeSens()
Wend

_GDIPlus_ImageDispose($hImage)
_GDIPlus_Shutdown()


;=========================================================
Func _Bouge()
  Local $speed = Random(2, 12, 1)
  If $sens = 1 Then  ; h
    $pos = WinGetPos($gui)
    $stop = Random(0, @DesktopHeight-$pos[1], 1)
    For $p = $pos[1] to $stop step -1
        WinMove($gui, "", Default, $p)
        If Mod($p, $speed) = 0 Then Sleep(1)
    Next
  ElseIf $sens = 2 Then  ; b
    $pos = WinGetPos($gui)
    $stop = Random(0, @DesktopHeight-$imgH-$pos[1], 1)
    For $p = $pos[1] to $stop
        WinMove($gui, "", Default, $p)
        If Mod($p, $speed) = 0 Then Sleep(1)
    Next
  ElseIf $sens = 3 Then  ; g
    $pos = WinGetPos($gui)
    $stop = Random(0, @DesktopWidth-$pos[0], 1)
    For $p = $pos[0] to $stop step -1
        WinMove($gui, "", $p, Default)
        If Mod($p, $speed) = 0 Then Sleep(1)
    Next
  ElseIf $sens = 4 Then  ; d
    $pos = WinGetPos($gui)
    $stop = Random(0, @DesktopWidth-$imgW-$pos[0], 1)
     For $p = $pos[0] to $stop
        WinMove($gui, "", $p, Default)
        If Mod($p, $speed) = 0 Then Sleep(1)
    Next
  EndIf
EndFunc


Func _ChangeDeSens()
  Do
     $sens = Random(1, 4, 1)
  Until $sens <> $oldsens
  $oldsens = $sens
EndFunc


Func _Terminate()
  _GDIPlus_Shutdown()
  GUIDelete ()
  Exit
EndFunc


Func SetBitmap($hGUI, $hImage, $iOpacity)
  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", $imgW)
  DllStructSetData($tSize, "Y", $imgH)
  $tSource = DllStructCreate($tagPOINT)
  $pSource = DllStructGetPtr($tSource)
  $tBlend  = DllStructCreate($tagBLENDFUNCTION)
  $pBlend  = DllStructGetPtr($tBlend)
  DllStructSetData($tBlend, "Alpha" , $iOpacity    )
  DllStructSetData($tBlend, "Format", 1)  ; $AC_SRC_ALPHA
  _WinAPI_UpdateLayeredWindow($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