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Take a screenshot of your desktop (works even if the desktop is hidden), then redraws it row by row. Makes a neat little effect. An effect I remember seeing at the photo booth at Chuck E' Cheese. I mostly just wanted to mess with LockBits and PrintWindow and thought this was a decent way to figure it out, but I liked the outcome and thought I'd share lol #include <GDIPlus.au3> #include <WinApi.au3> #include <WindowsConstants.au3> _GDIPlus_Startup() Global $tDesktopMetrics = GetDesktopMetrics() Global $hHBitmapDesktop = CaptureWindow("", -1, -1, -1, -1, "Program Manager") Global $hBitmapDesktop = _GDIPlus_BitmapCreateFromHBITMAP($hHBitmapDesktop) _WinAPI_DeleteObject($hHBitmapDesktop) Global $iW = _GDIPlus_ImageGetWidth($hBitmapDesktop) Global $iH = _GDIPlus_ImageGetHeight($hBitmapDesktop) Global $tBitmapData = _GDIPlus_BitmapLockBits($hBitmapDesktop, 0, 0, $iW, $iH, $GDIP_ILMREAD, $GDIP_PXF32PARGB) Global $tPixelMap = DllStructCreate("int[" & $iW * $iH & "];", DllStructGetData($tBitmapData, "Scan0")) Global $hGui = GUICreate("Redraw", $iW, $iH, $tDesktopMetrics.x, $tDesktopMetrics.y, $WS_POPUP) Global $hGraphics = _GDIPlus_GraphicsCreateFromHWND($hGui) Global $hBitmap = _GDIPlus_BitmapCreateFromGraphics($iW, $iH, $hGraphics) Global $tBitmapData2 = _GDIPlus_BitmapLockBits($hBitmap, 0, 0, $iW, $iH, $GDIP_ILMWRITE, $GDIP_PXF32PARGB) Global $tPixelMap2 = DllStructCreate("int[" & $iW * $iH & "];", DllStructGetData($tBitmapData2, "Scan0")) GUISetState(@SW_SHOW, $hGui) _GDIPlus_GraphicsClear($hGraphics) For $iY = 0 To $iH - 1 Local $iRowOffset = $iY * $iW + 1 For $iX = 0 To $iW - 1 ;get each pixel in each line and row DllStructSetData($tPixelMap2, 1, DllStructGetData($tPixelMap, 1, $iRowOffset + $iX), $iRowOffset + $iX) Next If (Not Mod($iY, 5)) Then ; Every 5 rows draw the bitmap _GDIPlus_BitmapUnlockBits($hBitmap, $tBitmapData2) _GDIPlus_GraphicsDrawImage($hGraphics, $hBitmap, 0, 0) $tBitmapData2 = _GDIPlus_BitmapLockBits($hBitmap, 0, 0, $iW, $iH, $GDIP_ILMWRITE, $GDIP_PXF32PARGB) $tPixelMap2 = DllStructCreate("int[" & $iW * $iH & "];", DllStructGetData($tBitmapData2, "Scan0")) EndIf Next If (Mod($iY, 5)) Then ; Didn't end on an even row, clean up _GDIPlus_BitmapUnlockBits($hBitmap, $tBitmapData2) _GDIPlus_GraphicsDrawImage($hGraphics, $hBitmap, 0, 0) $tPixelMap2 = 0 $tBitmapData2 = 0 EndIf _GDIPlus_BitmapUnlockBits($hBitmapDesktop, $tBitmapData) _GDIPlus_BitmapDispose($hBitmapDesktop) _GDIPlus_BitmapDispose($hBitmap) _GDIPlus_GraphicsDispose($hGraphics) _GDIPlus_Shutdown() GUIDelete($hGui) Exit 0 Func CaptureWindow($sFileName = "", $iLeft = -1, $iTop = -1, $iWidth = -1, $iHeight = -1, $hWnd = WinGetHandle("[Active]"), $bClientArea = True) If (Not IsHWnd($hWnd)) Then $hWnd = WinGetHandle($hWnd) If (@error) Then Return SetError(1, 0, False) If (BitAND(WinGetState($hWnd), 16) = 16) Then Return SetError(2, 0, False) Local $iSrcWidth = 0 Local $iSrcHeight = 0 ConsoleWrite($iLeft & ', ' & $iTop & ", " & $iWidth & ', ' & $iHeight & @LF) If ($hWnd = _WinAPI_GetDesktopWindow() Or $hWnd = WinGetHandle("Program Manager")) Then Local $tDesktop = GetDesktopMetrics() If ($iWidth = -1 Or $iWidth = 0 Or $iWidth = Default Or $iWidth > DllStructGetData($tDesktop, 3)) Then $iWidth = DllStructGetData($tDesktop, 3) If ($iHeight = -1 Or $iHeight = 0 Or $iHeight = Default Or $iWidth > DllStructGetData($tDesktop, 4)) Then $iHeight = DllStructGetData($tDesktop, 4) $iSrcWidth = DllStructGetData($tDesktop, 3) $iSrcHeight = DllStructGetData($tDesktop, 4) Else Local $tRectWindow = _WinAPI_GetWindowRect($hWnd) ; Get the absolute width, using Abs on all of the memembers because the [1] index of the struct may be negative, supports multiple monitors Local $iAbsWidth = Abs(Abs(DllStructGetData($tRectWindow, 3)) - Abs(DllStructGetData($tRectWindow, 1))) ; Get the absolute height, using Abs on all of the memembers because the [1] index of the struct may be negative, supports multiple monitors ; Subtracts the caption bar if $bClientArea only Local $iAbsHeight = Abs(Abs(DllStructGetData($tRectWindow, 4)) - Abs(DllStructGetData($tRectWindow, 2))) - ($bClientArea ? _WinAPI_GetSystemMetrics($SM_CYCAPTION) : 0) If ($iWidth = -1 Or $iWidth = 0 Or $iWidth = Default Or $iWidth > $iAbsWidth) Then $iWidth = $iAbsWidth If ($iHeight = -1 Or $iHeight = 0 Or $iHeight = Default Or $iHeight > $iAbsHeight) Then $iHeight = $iAbsHeight $iSrcWidth = $iAbsWidth $iSrcHeight = $iAbsHeight EndIf If ($iLeft = -1 Or $iLeft = Default) Then $iLeft = 0 If ($iTop = -1 Or $iTop = Default) Then $iTop = 0 Local $hDC = _WinAPI_GetWindowDC($hWnd) Local $hDestDC = _WinAPI_CreateCompatibleDC($hDC) Local $hDestBitmap = _WinAPI_CreateCompatibleBitmap($hDC, $iWidth, $iHeight) Local $hDestSv = _WinAPI_SelectObject($hDestDC, $hDestBitmap) Local $hSrcDC = _WinAPI_CreateCompatibleDC($hDC) Local $hBmp = _WinAPI_CreateCompatibleBitmap($hDC, $iSrcWidth, $iSrcHeight) Local $hSrcSv = _WinAPI_SelectObject($hSrcDC, $hBmp) _WinAPI_PrintWindow($hWnd, $hSrcDC, True) _WinAPI_BitBlt($hDestDC, 0, 0, $iWidth, $iHeight, $hSrcDC, $iLeft, $iTop, $MERGECOPY) _WinAPI_SelectObject($hDestDC, $hDestSv) _WinAPI_SelectObject($hSrcDC, $hSrcSv) _WinAPI_ReleaseDC($hWnd, $hDC) _WinAPI_DeleteDC($hDestDC) _WinAPI_DeleteDC($hSrcDC) _WinAPI_DeleteObject($hBmp) $tPoint = 0 $tRectWindow = 0 $tDesktop = 0 If ($sFileName) Then _GDIPlus_Startup() Local $hBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hDestBitmap) _GDIPlus_ImageSaveToFile($hBitmap, $sFileName) _GDIPlus_BitmapDispose($hBitmap) _GDIPlus_Shutdown() EndIf Return $hDestBitmap EndFunc ;==>CaptureWindow Func GetDesktopMetrics() Return _GDIPlus_RectFCreate(_WinAPI_GetSystemMetrics($SM_XVIRTUALSCREEN), _WinAPI_GetSystemMetrics($SM_YVIRTUALSCREEN), _ _WinAPI_GetSystemMetrics($SM_CXVIRTUALSCREEN), _WinAPI_GetSystemMetrics($SM_CYVIRTUALSCREEN)) EndFunc ;==>GetDesktopMetrics