wakillon

XvidCapture Demo capturing made easy, into avi video file with stereo sound

20 posts in this topic

#1 ·  Posted (edited)

XvidCapture, demo capturing made easy, into avi video file with stereo sound.

20150126144353.jpg

 

Script use XvidCapture.dll made for freebasic by D.J.Peters
 
Major defects :
 
       The frame rate need to be limited due to the time for write datas (80-130 ms by frame with a 1920x1080 screen size and a 640x480 video size).
       The dll support only uncompressed wav audio format (do not work with mp3)
       The quality setting doesn't seem to change anything.

 

Tested with AutoIt 3.3.8.1 on WinXP SP3 and AutoIt 3.3.12.0 on Win7/Win8.1

On my netbook using XP, i need to set fps to 5 with 320x240 !  :(

On my Destop PC using W7 or W8.1 , i need to set fps to 7 with 854x480 !

So don't expect a video in high-definition with dolby surround from a little dll of 153 ko ! :D

If FPS can be respected  by the script, the audio and video can be synchronized, so adjust settings depending on the config of your pc.

As usual externals files are embedded in script.

Thanks to Smashly for his wave functions and also UEZ, Authenticity, Eukalyptus and jpm for the new GDIPLUS functions.

source for 3.3.12.0 :

 XvidCapture v1.0.1.6.au3.html

source for previous versions :

 XvidCapture v1.0.1.6 PreviousAutoItVersions.au3.html

executable :

 XvidCapture.exe.html

Edited by wakillon
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AutoIt 3.3.14.2 X86 - SciTE 3.6.0WIN 8.1 X64 - Other Example Scripts

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#2 ·  Posted (edited)

Cool stuff wakillon!  :thumbsup:

Btw, the new GDIPlus functions were not implemented only by me -> Authenticity (initial release -> GDIP.au3) and Eukalyptus did a lot of efforts.

Br,

UEZ ;)

Edited by UEZ

Please don't send me any personal message and ask for support! I will not reply!

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Cool stuff wakillon!  :thumbsup:

Btw, the new GDIPlus functions were not implemented by me alone -> Authenticity (initial release -> GDIP.au3) and Eukalyptus did a lot of efforts.

Br,

UEZ

 

Thanks, and you are right, i forget them !

Hum, a little question : how is it possible that 2 seconds after i press the button for post my topic, you are already watching it ?

Are you a magician ?  :D


AutoIt 3.3.14.2 X86 - SciTE 3.6.0WIN 8.1 X64 - Other Example Scripts

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Oh, I really forgot jpm...  :>

 

Hum, a little question : how is it possible that 2 seconds after i press the button for post my topic, you are already watching it ?

Are you a magician ? 

 

I would say mere chance.  :shhh:

Br,

UEZ


Please don't send me any personal message and ask for support! I will not reply!

Selection of finest graphical examples at Codepen.io

The own fart smells best!
Her 'sikim hıyar' diyene bir avuç tuz alıp koşma!
¯\_(ツ)_/¯  ٩(●̮̮̃•̃)۶ ٩(-̮̮̃-̃)۶ૐ

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I would say mere chance.  :shhh:

Br,

UEZ

 

Oh ok !  :whistle:

 

About the GDI functions I thought particularly to _GDIPlus_EffectCreateColorMatrix who permit me to apply
a BGR Matrix cause Freebasic use ABGR format for the pixel data instead of ARGB.
Without this, blue color and red color are permuted ! 
 
May be you have saw my _GDIPlus_ColorMatrixSwapToBGR function ?

AutoIt 3.3.14.2 X86 - SciTE 3.6.0WIN 8.1 X64 - Other Example Scripts

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Yes, I saw it but wanted to have a deeper look to the code today in the evening when I'm at home.

Br,

UEZ


Please don't send me any personal message and ask for support! I will not reply!

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The own fart smells best!
Her 'sikim hıyar' diyene bir avuç tuz alıp koşma!
¯\_(ツ)_/¯  ٩(●̮̮̃•̃)۶ ٩(-̮̮̃-̃)۶ૐ

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Ace

9 fps with 854x480 :)

 

Oh ! Very good PC Config isn't it ? 


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Is there any licence on the dll, I wouldn't mind trying it in a project?

Or better still is the full source available?

 

Sorry i have forgotten to mention on the first post, but license is indicated in the script.

License : GNU Library or Lesser General Public License version 3.0 (LGPLv3)

:)

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cool :thumbsup: :thumbsup:

code

Case $idButtonRecordStart
    _RecordStart()

to

Case $idButtonRecordStart
            GUISetState ( @SW_HIDE, $hGui )
            sleep(500)
            _RecordStart()

try

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cool :thumbsup: :thumbsup:

code

Case $idButtonRecordStart
    _RecordStart()

to

Case $idButtonRecordStart
            GUISetState ( @SW_HIDE, $hGui )
            sleep(500)
            _RecordStart()

try

 

GUISetState ( @SW_HIDE, $hGui ) is already in the _RecordStart function

You need to add a sleep because you see the GUI on the recorded video?

Strange, from my side I never saw it at the beginning of the recording... :huh2:

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#14 ·  Posted (edited)

 

Oh ok !  :whistle:

 

About the GDI functions I thought particularly to _GDIPlus_EffectCreateColorMatrix who permit me to apply
a BGR Matrix cause Freebasic use ABGR format for the pixel data instead of ARGB.
Without this, blue color and red color are permuted ! 
 
May be you have saw my _GDIPlus_ColorMatrixSwapToBGR function ?

 

 

Yes.

Func _GDIPlus_ColorMatrixSwapToBGR()
                        ;   R  G  B  A  v   
    Local $aMatrix[25] = [  0, 0, 1, 0, 0, _    ;R
                            0, 1, 0, 0, 0, _    ;G
                            1, 0, 0, 0, 0, _    ;B
                            0, 0, 0, 1, 0, _    ;A
                            0, 0, 0, 0, 1]      ;v
    Local $tBGRColorMatrix = _GDIPlus_ColorMatrixCreate()
    For $i = 0 To 24
        DllStructSetData ( $tBGRColorMatrix, 'm', $aMatrix[$i], $i + 1 )
    Next
    Return $tBGRColorMatrix
EndFunc ;==> _GDIPlus_ColorMatrixSwapToBGR()

Malkey discovered that matrix already in 2008 -> '?do=embed' frameborder='0' data-embedContent>>

 

If you want to reach 15 fps your _RecordStart() function must take less than  66,67 ms. That's a tough challange with AutoIt.

Br,

UEZ

Edited by UEZ

Please don't send me any personal message and ask for support! I will not reply!

Selection of finest graphical examples at Codepen.io

The own fart smells best!
Her 'sikim hıyar' diyene bir avuç tuz alıp koşma!
¯\_(ツ)_/¯  ٩(●̮̮̃•̃)۶ ٩(-̮̮̃-̃)۶ૐ

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I didn't know this example

I have adapt matrix from here  :P


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@UEZ

What idiot i am, I was wrong !  >_<

Looking more closely to it, i've well seen this example but as I couldn't get it to work, I went to something else.

My first goal was to set pixel data format to ABGR for the freebasic dll, and not to play with colors.

To this intention, yesterday afternoon i wrote this function based on the AutoHotkey link of my previous post.

#Include <GDIPlus.au3>

_GDIPlus_ColorMatrixSetPixelDataFormat ( 'RBG' )

Func _GDIPlus_ColorMatrixSetPixelDataFormat ( $sFormat )
    Local $j, $aMatrix[6][25] = [ _
        [0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,1], _ ; BGR 
        [1,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,1], _ ; RBG 
        [0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1], _ ; GRB 
        [0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,1], _ ; BRG 
        [0,1,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,1], _ ; GBR 
        [1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1]  _ ; RGB 
        ]
    Switch $sFormat
        Case 'BGR'
            $j = 0
        Case 'RBG'
            $j = 1
        Case 'GRB'
            $j = 2
        Case 'BRG'
            $j = 3
        Case 'GBR'
            $j = 4
        Case 'RGB'
            $j = 5
        Case Else
            Return SetError ( 1, 0, 0 )
    EndSwitch
    Local $tBGRColorMatrix = _GDIPlus_ColorMatrixCreate()
    For $i = 0 To UBound ( $aMatrix, 2 ) -1
        DllStructSetData ( $tBGRColorMatrix, 'm', $aMatrix[$j][$i], $i+1 )
    Next
    $aMatrix = 0
    Return $tBGRColorMatrix
EndFunc ;==> _GDIPlus_ColorMatrixSetPixelDataFormat()
It's not the _RecordStart function but _XvidCap_Write32BitPixels and _XvidCap_WriteAudioSamples functions who write datas.
Increase the FPS could improve the fluidity of the video, but I would look rather improving the "image" quality .
I have made some test by increasing the resolution (96 to 256) of the image before the datas were writted, but the result was not conclusive !  :thumbsdown:
 
May be i need to find another solution as using BassVideo.dll or some equivalent...
 
;)

AutoIt 3.3.14.2 X86 - SciTE 3.6.0WIN 8.1 X64 - Other Example Scripts

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Wakillon,

I tested with my PC, with screen resolution 1280 x 1024 and it works great,

congratulations for the work!

The best setting for my PC is 960x540 with 7 fps,
since it is the best setting, it is possible to launch the executable and start
recording without having the gui (I set the setting based on 960x540 and 7 fps)?

thanks

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#18 ·  Posted (edited)

Wakillon,

I tested with my PC, with screen resolution 1280 x 1024 and it works great,

congratulations for the work!

The best setting for my PC is 960x540 with 7 fps,

since it is the best setting, it is possible to launch the executable and start

recording without having the gui (I set the setting based on 960x540 and 7 fps)?

thanks

 

Thanks.

At the end of the GUI() Function ( line 203)

Replace "GUISetState()" by this part of code

If _IsPressedEx ( '11' )  Then ;   11 = Left CTRL key
        GUISetState ( @SW_HIDE, $hGui )
        HotKeySet ( '^x', '_HotKeyGet' )
        _RecordStart()
        If Not @error Then
            $iRecording = 1
        Else
            $iRecording = -1
            GUISetState()
        EndIf
    Else
        GUISetState()
    EndIf

And Add the "_IsPressedEx" function to the script

Func _IsPressedEx ( $HexKey )
    Local $aRet = DllCall ( 'user32.dll', 'int', 'GetAsyncKeyState', 'int', '0x' & $HexKey )
    If Not @error Then Return Int ( $aRet[0] <> 0 )
EndFunc ;==> _IsPressedEx()

And Compile the Script

Now you have to Hold the (left) CTRL key when double clicking on the Executable , and the record start without the Gui.

And always Ctrl X for stop the record.( X for XvidCapture, for not forget !)

I hope this solution will suit you !

:)

Edited by wakillon

AutoIt 3.3.14.2 X86 - SciTE 3.6.0WIN 8.1 X64 - Other Example Scripts

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wakillon,

thanks for your help!

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wakillon,

thanks for your help!

 

Glad to help you  ;)


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1 If Not FileExists(@ScriptDir & "\Images\TheZoomquilt" & StringFormat("%02i.jpg", $i)) Then If Not FileExists(@ScriptDir & "\Images") Then DirCreate(@ScriptDir & "\Images") $sURL = "http://imgur.com/" & $A[Mod(20 + $i, 46)] & ".jpg" ConsoleWrite("Downloading " & $sURL & ": " & InetGet($sURL, @ScriptDir & "\Images\TheZoomquilt" & StringFormat("%02i.jpg", $i), 8) & " bytes" & @CRLF) ToolTip("Downloading images...Please wait! -> " & $i + 1 & " / " & UBound($A), MouseGetPos(0), MouseGetPos(1)) EndIf Next ToolTip("") EndFunc ;==>Downloader  
       
      Arkadia:
      ;coded by UEZ build 2018-01-10, idea and images taken from http://arkadia.xyz ;thanks to spudw2k for the MouseZoom function #pragma compile(Icon, "c:\Program Files (x86)\AutoIt3\Icons\au3.ico") #AutoIt3Wrapper_Run_Au3Stripper=y #Au3Stripper_Parameters=/so /pe /rm #AutoIt3Wrapper_Run_After=del /f /q "%scriptdir%\%scriptfile%_stripped.au3" #include <GDIPlus.au3> #include <GuiConstantsEx.au3> #include <WindowsConstants.au3> _GDIPlus_Startup() Global $hGUI, $iFPS = 0, $iShowFPS = 0, $bExit, $iW, $iH Global Const $sTitle = "GDI Image Zoom v2.2.1 coded by UEZ" AutoItSetOption("GUIOnEventMode", 1) Downloader() GDIPlus_ZoomImage() AutoItSetOption("GUIOnEventMode", 0) _GDIPlus_Shutdown() Func GDIPlus_ZoomImage($bMultimonitor = False) $bExit = False Local $i, $aImages[49], $hImage, $hObj ConsoleWrite("Loading images from local disk..." & @CRLF) Local $fTimer = TimerInit() For $i = 0 To UBound($aImages) - 1 $hImage = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\Images\Arkadia" & $i & ".jpg") $aImages[$i] = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hImage) _GDIPlus_ImageDispose($hImage) Next ConsoleWrite(UBound($aImages) & " images loaded in " & TimerDiff($fTimer) & " ms" & @CRLF) Local $tDim = DllStructCreate($tagBITMAP) DllCall("GDI32.dll", "int", "GetObject", "int", $aImages[0], "int", DllStructGetSize($tDim), "ptr", DllStructGetPtr($tDim)) $iW = $tDim.bmWidth $iH = $tDim.bmHeight Local $hFullScreen = WinGetHandle("[TITLE:Program Manager;CLASS:Progman]"), $aFullScreen[4], $iW_Dt, $iH_Dt $aFullScreen = WinGetPos($hFullScreen) If $bMultimonitor Then $iW_Dt = $aFullScreen[2] $iH_Dt = $aFullScreen[3] Else $iW_Dt = @DesktopWidth $iH_Dt = @DesktopHeight $aFullScreen[0] = "" $aFullScreen[1] = "" EndIf $hGUI = GUICreate($sTitle, $iW_Dt, $iH_Dt, $aFullScreen[0], $aFullScreen[1], $WS_POPUP, $WS_EX_TOPMOST) GUISetState(@SW_SHOW, $hGUI) GUISetCursor(16, 1) ;create canvas elements Local Const $hDC = _WinAPI_GetDC($hGUI) Local Const $hHBitmap = _WinAPI_CreateCompatibleBitmap($hDC, $iW_Dt, $iH_Dt) Local Const $hDC_backbuffer = _WinAPI_CreateCompatibleDC($hDC) Local Const $DC_obj = _WinAPI_SelectObject($hDC_backbuffer, $hHBitmap) Local Const $hMemDC = _WinAPI_CreateCompatibleDC($hDC) _WinAPI_SetStretchBltMode($hDC_backbuffer, $STRETCH_DELETESCANS) Local Const $hCanvas = _GDIPlus_GraphicsCreateFromHDC($hDC_backbuffer) _GDIPlus_GraphicsSetSmoothingMode($hCanvas, $GDIP_SMOOTHINGMODE_HIGHQUALITY) _GDIPlus_GraphicsSetPixelOffsetMode($hCanvas, $GDIP_PIXELOFFSETMODE_HIGHQUALITY) Local Const $hBrush_Clr = _GDIPlus_BrushCreateSolid(0xFF000000), _ $hBrush_FPS = _GDIPlus_BrushCreateSolid(0xFFFFFFFF), _ $hFormat_FPS = _GDIPlus_StringFormatCreate(), _ $hFamily_FPS = _GDIPlus_FontFamilyCreate("Arial"), _ $hFont_FPS = _GDIPlus_FontCreate($hFamily_FPS, 8), _ $tLayout_FPS = _GDIPlus_RectFCreate(0, 0, 130, 16) $iFPS = 0 GUISetOnEvent($GUI_EVENT_CLOSE, "_Exit_About") AdlibRegister("CalcFPS", 1000) Local $a[3], $b = 1, $c, $x, $e, $y, $w, $h, $w2 = $iW_Dt / 2, $h2 = $iH_Dt / 2, $q, $r If $iW_Dt > 1.5 * $iH_Dt Then $q = $iW_Dt $r = 0.75 * $iW_Dt Else $q = 1.5 * $iH_Dt $r = 0.75 * $iH_Dt EndIf Do For $e = 0 To 2 $a[$e] = $aImages[Mod(Floor($b) + $e, UBound($aImages))] Next $c = 2^(Mod($b, 1)) For $e = 0 To 2 $x = $w2 - $q / 2 * $c $y = $h2 - $r / 2 * $c $w = $q * $c $h = $r * $c $hObj = _WinAPI_SelectObject($hMemDC, $a[$e]) _WinAPI_StretchBlt($hDC_backbuffer, $x, $y, $w, $h, $hMemDC, 0, 0, $iW, $iH, $SRCCOPY) $c *= 0.5 Next $b += MouseZoom() IF $b < 0 Then $b = UBound($aImages) - $b _GDIPlus_GraphicsDrawStringEx($hCanvas, "FPS: " & $iShowFPS & " @ " & $iW_Dt & "x" & $iH_Dt & " px", $hFont_FPS, $tLayout_FPS, $hFormat_FPS, $hBrush_FPS) _WinAPI_BitBlt($hDC, 0, 0, $iW_Dt, $iH_Dt, $hDC_backbuffer, 0, 0, $SRCCOPY) $iFPS += 1 If $bExit Then ExitLoop Until Not Sleep(0) AdlibUnRegister("CalcFPS") ;release resources _GDIPlus_FontDispose($hFont_FPS) _GDIPlus_FontFamilyDispose($hFamily_FPS) _GDIPlus_StringFormatDispose($hFormat_FPS) _GDIPlus_BrushDispose($hBrush_Clr) _GDIPlus_BrushDispose($hBrush_FPS) _GDIPlus_GraphicsDispose($hCanvas) _WinAPI_SelectObject($hMemDC, $hObj) _WinAPI_DeleteDC($hMemDC) _WinAPI_SelectObject($hDC_backbuffer, $DC_obj) _WinAPI_DeleteDC($hDC_backbuffer) _WinAPI_DeleteObject($hHBitmap) _WinAPI_ReleaseDC($hGUI, $hDC) For $i = 0 To UBound($aImages) - 1 _WinAPI_DeleteObject($aImages[$i]) Next GUIDelete($hGUI) EndFunc ;==>GDIPlus_ZoomImage Func MouseZoom() ;https://www.arduino.cc/reference/en/language/functions/math/map/ Local $iInput = MouseGetPos(1), $iInMin = 0, $iInMax = @DesktopHeight, $iOutMin = 1, $iOutMax = -1, $iStep = 0.025 Return (($iInput - $iInMin) * ($iOutMax - $iOutMin) / ($iInMax - $iInMin) + $iOutMin) * $iStep EndFunc ;MouseZoom() Func _Exit_About() $bExit = True EndFunc ;==>_Exit_About Func CalcFPS() ;display FPS $iShowFPS = $iFPS $iFPS = 0 EndFunc ;==>CalcFPS Func Downloader() Local $sURL, $i For $i = 0 To 48 If Not FileExists(@ScriptDir & "\Images\Arkadia" & $i & ".jpg") Then If Not FileExists(@ScriptDir & "\Images") Then DirCreate(@ScriptDir & "\Images") $sURL = "http://arkadia.xyz/images/arkadia" & $i & ".jpg" ConsoleWrite("Downloading " & $sURL & ": " & InetGet($sURL, @ScriptDir & "\Images\Arkadia" & $i & ".jpg", 8) & " bytes" & @CRLF) ToolTip("Downloading images...Please wait! -> " & $i + 1 & " / " & $i, MouseGetPos(0), MouseGetPos(1)) EndIf Next ToolTip("") EndFunc ;==>Downloader  
      The missing images will be download and saved to script dir in folder images. Due to internal integer format of the GDI functions the screen is little bit wobbling.
       
      Happy watching. 
    • Miliardsto
      By Miliardsto
      Hello I have problem with my object drawn in gdi
      Func drawTriangle($tabName,$gui_active = 0) _GDIPlus_Startup() ;initialize GDI+ Local $hGraphics = _GDIPlus_GraphicsCreateFromHWND($sGUI[$gui_active]) ;create a graphics object from a window handle _GDIPlus_GraphicsSetSmoothingMode($hGraphics, $GDIP_SMOOTHINGMODE_HIGHQUALITY) ;sets the graphics object rendering quality (antialiasing) Local $hBrush = _GDIPlus_BrushCreateSolid(0xFFEFEFEF) ;color format AARRGGBB (hex) Local $aPoints[5][3] $aPoints[0][0] = 4 $aPoints[1][0] = 0.0 ; left $aPoints[1][1] = 0.0 ; top $aPoints[2][0] = 0.0 ; left $aPoints[2][1] = 30.0 ; top $aPoints[3][0] = 80.0 ; left $aPoints[3][1] = 30.0 ; top $aPoints[4][0] = 110.0 ; left $aPoints[4][1] = 0.0 ; top _GDIPlus_GraphicsFillPolygon($hGraphics, $aPoints, $hBrush) ;draw the triangle Local $fBrush = _GDIPlus_BrushCreateSolid(0xFFAAAAAA) ;color format AARRGGBB (hex) Local $sString = $tabName, $aInfo ; from the func param Local $hFormat, $hFamily, $hFont, $tLayout $hFormat = _GDIPlus_StringFormatCreate() $hFamily = _GDIPlus_FontFamilyCreate("Segoe UI") $hFont = _GDIPlus_FontCreate($hFamily, 12, 2) $tLayout = _GDIPlus_RectFCreate(6, 2) $aInfo = _GDIPlus_GraphicsMeasureString($hGraphics, $sString, $hFont, $tLayout, $hFormat) _GDIPlus_GraphicsDrawStringEx($hGraphics, $sString, $hFont, $aInfo[0], $hFormat, $fBrush) ;_GDIPlus_GraphicsDrawString($hGraphics, $tabName, 6, 3, "Segoe UI", 12) ; write text ;cleanup GDI+ resources _GDIPlus_FontDispose($hFont) _GDIPlus_FontFamilyDispose($hFamily) _GDIPlus_StringFormatDispose($hFormat) _GDIPlus_BrushDispose($hBrush) _GDIPlus_GraphicsDispose($hGraphics) _GDIPlus_Shutdown() EndFunc After this code execution I got new object rectangle
      Global $ma_border = GUICtrlCreateGraphic(100, 180, 40, 40) GUICtrlSetGraphic($ma_border, $GUI_GR_COLOR, 0x00000, $COLOR_BLUE) GUICtrlSetGraphic($ma_border, $GUI_GR_RECT, 0, 0, 40, 40) GUICtrlSetState(-1,$GUI_DISABLE) And what happens is first func = draw rectangle is pushed to parameters from GUICtrlCreateGraphic func. Left: 100, Top: 180.
      I can simplu reverse order of these func execution but There is too much things to change in my code.
      Can something be done to prevent this slipping?
    • Larnil
      By Larnil
      This script generates Barnsleys Fractal Fern using script only.
      ; version 2017-10-03 ; Barnsley Fractal Fern ; by larnil #include <GUIConstants.au3> Dim $x, $y, $xn, $yn, $n, $r, $dc $WinSize = 800 ; window size ;Create graphics windows AutoItSetOption("GUIOnEventMode", 1) $GUI = GUICreate("Barnsley Fractal Fern", $WinSize, $WinSize, -1, -1) $Graphic = GuiCtrlCreateGraphic(0, 0, $WinSize, $WinSize) GUICtrlSetBkColor(-1, 0x000000) GUICtrlSetGraphic(-1,$GUI_GR_COLOR, 0x00ff00) GUISetState(@SW_SHOW) GUISetOnEvent($GUI_EVENT_CLOSE,"Bye") ;Main $start = TimerInit() _Fern(800) ; hight of fern - can be larger than window MsgBox(0,"Time taken:",Round(TimerDiff($start)/1000,3) &" seconds") While 1 Sleep(100) WEnd Func Bye() Exit EndFunc Func _Fern($height) $f = $height/10.6 ; scale factor. Complete fern is within 0 <= y <= 9.9983 (with no scale) $offset_x = $height/2 - $height/40 ; Side adjustment. Fern is within −2.1820 < x < 2.6558 (with no scale) For $n = 1 To $height*200 ; Number of iterations $r = Random(0, 99, 1) Select Case $r < 85 ; 0-84 = 85% of the time $xn = 0.85 * $x + 0.04 * $y $yn = -0.04 * $x + 0.85 * $y + 1.6 Case $r > 84 AND $r < 92 ; 85-91 = 7% of the time $xn = 0.2 * $x - 0.26 * $y $yn = 0.23 * $x + 0.22 * $y + 1.6 Case $r > 91 AND $r < 99 ; 92-98 = 7% of the time $xn = -0.15 * $x + 0.28 * $y $yn = 0.26 * $x + 0.24 * $y + 0.44 Case Else ; 99-99 = 1% of the time $xn = 0 $yn = 0.16 * $y EndSelect $x = $xn $y = $yn GUICtrlSetGraphic($Graphic, $GUI_GR_PIXEL, $offset_x + $x * $f, $height - $y * $f) Next GUICtrlSetGraphic($Graphic, $GUI_GR_REFRESH) EndFunc ;==> Fern  
      Here is another example where I have used GDI (my very first attempt at using GDI by the way). This script can generate much larger Ferns and save them to file (png). I have used this script to generate a 20000 x 20000 pixel @ 600 dpi image. Looks really good printed out in full size.
      #include <GDIPlus.au3> #include <GUIConstantsEx.au3> ; Param Local Const $iPxColor = 0xFF00FF00 ; Pixel color for fractal Alpha/R/G/B Local Const $iBgColor = 0xFFFFFFFF ; Background color for image Alpha/R/G/B Local Const $iSize = 1000 ; Hight of fern in pixels - image will have this hight and width too Local Const $iIter = $iSize*400 ; Number of iterations - $iSize * 200 is a good starting point ; Call function ;$start = TimerInit() _Fern($iSize,$iIter) ;MsgBox(0,"Time taken:",Round(TimerDiff($start)/1000,3) &" seconds") ; Function for generating Barnsley Fractal Fern Func _Fern($Size,$Iter) _GDIPlus_Startup() ; initialize GDI+ Local $hBitmap = _GDIPlus_BitmapCreateFromScan0($Size, $Size) ; create an empty bitmap Local $hBmpCtxt = _GDIPlus_ImageGetGraphicsContext($hBitmap) ; get the graphics context of the image _GDIPlus_GraphicsClear($hBmpCtxt, $iBgColor) ; Set the background color for empty bitmap ; Here the magic happens $x=0 ; init $y=0 ; init $f = $Size/10.6 ; scale factor. Complete fern is within 0 <= y <= 9.9983 (with no scale) $offset_x = $Size/2 - $Size/40 ; Side adjustment. Fern is within −2.1820 < x < 2.6558 (with no scale) For $n = 1 To $Iter ; Number of iterations $r = Random(0, 99, 1) Select Case $r < 85 ; 0-84 = 85% of the time $xn = 0.85 * $x + 0.04 * $y $yn = -0.04 * $x + 0.85 * $y + 1.6 Case $r > 84 AND $r < 92 ; 85-91 = 7% of the time $xn = 0.2 * $x - 0.26 * $y $yn = 0.23 * $x + 0.22 * $y + 1.6 Case $r > 91 AND $r < 99 ; 92-98 = 7% of the time $xn = -0.15 * $x + 0.28 * $y $yn = 0.26 * $x + 0.24 * $y + 0.44 Case Else ; 99-99 = 1% of the time $xn = 0 $yn = 0.16 * $y EndSelect $x = $xn $y = $yn _GDIPlus_BitmapSetPixel($hBitmap, $offset_x + $x * $f, $Size - $y * $f, $iPxColor) ; Change pixel color for calculated X,Y Next ; ==> End of magic $File = "\Fractal_Fern_"&StringRight(Hex($iPxColor),6)&"-"&StringRight(Hex($iBgColor),6)&"-"&$iSize&".png" _GDIPlus_ImageSaveToFile($hBitmap, @MyDocumentsDir & $File) ;save bitmap to disk ShellExecute(@MyDocumentsDir & $File); Show it to the world in your default image viewer ; Cleanup GDI+ resources _GDIPlus_GraphicsDispose($hBmpCtxt) _GDIPlus_BitmapDispose($hBitmap) _GDIPlus_Shutdown() EndFunc ;==> _Fern