DrAhmed

[SOLVED] Convert Bitmap image to JPG in memory

18 posts in this topic

#1 ·  Posted (edited)

Hey

I'm not really familliar with GDI Plus , I am looking for how tocConvert a bitmap image to JPG in memory without saving it to disk

Because I want to send it later via TCP directly without using FileRead and other stuff ..

The only function I found is below but it saves the image in disk :(

Func SaveBmp2JPG($Bitmap, $sSave = "Converted.jpg", $iQuality = 20) ;coded by UEZ 2013
    If Not IsPtr($Bitmap) Then
        $Bitmap = _GDIPlus_ImageLoadFromFile($sFile)
        If @error Then Return SetError(1, 0, 0)
    EndIf
    Local $sCLSID = _GDIPlus_EncodersGetCLSID("JPG")
    Local $tParams = _GDIPlus_ParamInit(1)
    Local $tData = DllStructCreate("int Quality")
    Local $pData = DllStructGetPtr($tData)
    Local $pParams = DllStructGetPtr($tParams)
    DllStructSetData($tData, "Quality", $iQuality)
    _GDIPlus_ParamAdd($tParams, $GDIP_EPGQUALITY, 1, $GDIP_EPTLONG, $pData)
    If Not _GDIPlus_ImageSaveToFileEx($Bitmap, $sSave, $sCLSID, $pParams) Then Return SetError(2, 0, 0)
    Return True
EndFunc

what my code now looks like :

#include <ScreenCapture.au3>
#include <guiconstantsex.au3>
#include <gdiplus.au3>
#include <memory.au3>
#include <staticconstants.au3>


Global $ghGDIPDLL = $__g_hGDIPDll

 Example()
Func Example()

    _GDIPlus_Startup()
    Local $hHBmp = _ScreenCapture_Capture("") ;create a GDI bitmap by capturing my desktop
    Local $hBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hHBmp) ;convert GDI bitmap to GDI+ bitmap
    _WinAPI_DeleteObject($hHBmp) ;release GDI bitmap resource because not needed anymore
    Local $hBitmap_Scaled2 = _GDIPlus_ImageResize($hBitmap,  @DesktopWidth / 1.5, @DesktopHeight / 1.5) ;resize image

SaveBmp2JPG($hBitmap_Scaled2,'Test.jpg',99) ; ===> Saving to disk ??


    _GDIPlus_Shutdown()

EndFunc   ;==>Example

Func SaveBmp2JPG($Bitmap, $sSave , $iQuality) ;coded by UEZ 2013
    If Not IsPtr($Bitmap) Then
        $Bitmap = _GDIPlus_ImageLoadFromFile($sFile)
        If @error Then Return SetError(1, 0, 0)
    EndIf
    Local $sCLSID = _GDIPlus_EncodersGetCLSID("JPG")
    Local $tParams = _GDIPlus_ParamInit(1)
    Local $tData = DllStructCreate("int Quality")
    Local $pData = DllStructGetPtr($tData)
    Local $pParams = DllStructGetPtr($tParams)
    DllStructSetData($tData, "Quality", $iQuality)
    _GDIPlus_ParamAdd($tParams, $GDIP_EPGQUALITY, 1, $GDIP_EPTLONG, $pData)
   If Not _GDIPlus_ImageSaveToFileEx($Bitmap, $sSave, $sCLSID, $pParams) Then Return SetError(2, 0, 0)
    Return True
 EndFunc

 

Edited by DrAhmed

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Func _GDIPlus_StreamImage2BinaryString($hBitmap, $sFormat = "JPG", $iQuality = 80, $bSave = False, $sFilename = "Converted.jpg") ;coded by UEZ 2013 build 2013-09-14
    Local $sImgCLSID, $tGUID, $tParams
    Switch $sFormat
        Case "JPG"
            $sImgCLSID = _GDIPlus_EncodersGetCLSID($sFormat)
            $tGUID = _WinAPI_GUIDFromString($sImgCLSID)
            Local $tData = DllStructCreate("int Quality")
            DllStructSetData($tData, "Quality", $iQuality) ;quality 0-100
            Local $pData = DllStructGetPtr($tData)
            $tParams = _GDIPlus_ParamInit(1)
            _GDIPlus_ParamAdd($tParams, $GDIP_EPGQUALITY, 1, $GDIP_EPTLONG, $pData)
        Case "PNG", "BMP", "GIF", "TIF"
            $sImgCLSID = _GDIPlus_EncodersGetCLSID($sFormat)
            $tGUID = _WinAPI_GUIDFromString($sImgCLSID)
        Case Else
            Return SetError(1, 0, 0)
    EndSwitch
    Local $hStream = _WinAPI_CreateStreamOnHGlobal() ;http://msdn.microsoft.com/en-us/library/ms864401.aspx
    If @error Then Return SetError(2, 0, 0)
    _GDIPlus_ImageSaveToStream($hBitmap, $hStream, DllStructGetPtr($tGUID), DllStructGetPtr($tParams))
    If @error Then Return SetError(3, 0, 0)
    _GDIPlus_BitmapDispose($hBitmap)
    Local $hMemory = _WinAPI_GetHGlobalFromStream($hStream) ;http://msdn.microsoft.com/en-us/library/aa911736.aspx
    If @error Then Return SetError(4, 0, 0)
    Local $iMemSize = _MemGlobalSize($hMemory)
    If Not $iMemSize Then Return SetError(5, 0, 0)
    Local $pMem = _MemGlobalLock($hMemory)
    $tData = DllStructCreate("byte[" & $iMemSize & "]", $pMem)
    Local $bData = DllStructGetData($tData, 1)
    _WinAPI_ReleaseStream($hStream) ;http://msdn.microsoft.com/en-us/library/windows/desktop/ms221473(v=vs.85).aspx
    _MemGlobalFree($hMemory)
    If $bSave Then
        Local $hFile = FileOpen($sFilename, 18)
        If @error Then Return SetError(6, 0, $bData)
        FileWrite($hFile, $bData)
        FileClose($hFile)
    EndIf
    Return $bData
EndFunc   ;==>_GDIPlus_StreamImage2BinaryString

It's a hard function to find on the forums, so I have it saved on my computer.

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9 hours ago, InunoTaishou said:
Func _GDIPlus_StreamImage2BinaryString($hBitmap, $sFormat = "JPG", $iQuality = 80, $bSave = False, $sFilename = "Converted.jpg") ;coded by UEZ 2013 build 2013-09-14
    Local $sImgCLSID, $tGUID, $tParams
    Switch $sFormat
        Case "JPG"
            $sImgCLSID = _GDIPlus_EncodersGetCLSID($sFormat)
            $tGUID = _WinAPI_GUIDFromString($sImgCLSID)
            Local $tData = DllStructCreate("int Quality")
            DllStructSetData($tData, "Quality", $iQuality) ;quality 0-100
            Local $pData = DllStructGetPtr($tData)
            $tParams = _GDIPlus_ParamInit(1)
            _GDIPlus_ParamAdd($tParams, $GDIP_EPGQUALITY, 1, $GDIP_EPTLONG, $pData)
        Case "PNG", "BMP", "GIF", "TIF"
            $sImgCLSID = _GDIPlus_EncodersGetCLSID($sFormat)
            $tGUID = _WinAPI_GUIDFromString($sImgCLSID)
        Case Else
            Return SetError(1, 0, 0)
    EndSwitch
    Local $hStream = _WinAPI_CreateStreamOnHGlobal() ;http://msdn.microsoft.com/en-us/library/ms864401.aspx
    If @error Then Return SetError(2, 0, 0)
    _GDIPlus_ImageSaveToStream($hBitmap, $hStream, DllStructGetPtr($tGUID), DllStructGetPtr($tParams))
    If @error Then Return SetError(3, 0, 0)
    _GDIPlus_BitmapDispose($hBitmap)
    Local $hMemory = _WinAPI_GetHGlobalFromStream($hStream) ;http://msdn.microsoft.com/en-us/library/aa911736.aspx
    If @error Then Return SetError(4, 0, 0)
    Local $iMemSize = _MemGlobalSize($hMemory)
    If Not $iMemSize Then Return SetError(5, 0, 0)
    Local $pMem = _MemGlobalLock($hMemory)
    $tData = DllStructCreate("byte[" & $iMemSize & "]", $pMem)
    Local $bData = DllStructGetData($tData, 1)
    _WinAPI_ReleaseStream($hStream) ;http://msdn.microsoft.com/en-us/library/windows/desktop/ms221473(v=vs.85).aspx
    _MemGlobalFree($hMemory)
    If $bSave Then
        Local $hFile = FileOpen($sFilename, 18)
        If @error Then Return SetError(6, 0, $bData)
        FileWrite($hFile, $bData)
        FileClose($hFile)
    EndIf
    Return $bData
EndFunc   ;==>_GDIPlus_StreamImage2BinaryString

It's a hard function to find on the forums, so I have it saved on my computer.

Thanks man but I don't think it's working :( , I tried to save the result image on hdd to debug and the filesize was 8kb with empty image .

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And here I could not even put the functions WinAPI CreateStreamOnHGlobal() , _WinAPI_GetHGlobalFromStream() and _WinAPI_ReleaseStream() in the script!

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@DrAhmed: Search the forum for "_GDIPlus_StreamImage2BinaryString" and you will find several examples how to use it in different scenarios.

You even replied here:

 

 

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6 minutes ago, UEZ said:

@DrAhmed: Search the forum for "_GDIPlus_StreamImage2BinaryString" and you will find several examples how to use it in different scenarios.

You even replied here:

 

 

My bad , I feel so stupid , I used it wrong .. works like charm thanks man. You are the best B) . 

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@UEZ 

Is there any way to reduce high RAM and CPU usage while using this function ?

 

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If the memory consumption of your script is permanetely increasing then you have probably a memory leak. This mostly occurs when you don't release GDI/GDI+ resources.

Btw, define "high usage". What is the size of your images which you send to this function?


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!
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¯\_(ツ)_/¯  ٩(●̮̮̃•̃)۶ ٩(-̮̮̃-̃)۶ૐ

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#9 ·  Posted (edited)

@UEZ

The image size is really small arround 50KB , I set a low value for JPG quality and used image resize to reduce it .

that's what I am getting after few seconds of running the script :

Rp1y3tE.jpg

 

Edit : I am using this func to encode the stream data before sending them , can it be the reason ?

; #FUNCTION# ;===============================================================================
;
; Name...........: _Base64Encode
; Description ...: Returns the given strinng encoded as a Base64 string.
; Syntax.........: _Base64Encode($sData)
; Parameters ....: $sData
; Return values .: Success - Base64 encoded string.
;                  Failure - Returns 0 and Sets @Error:
;                  |0 - No error.
;                  |1 - Could not create DOMDocument
;                  |2 - Could not create Element
;                  |3 - No string to return
; Author ........: turbov21
; Modified.......:
; Remarks .......:
; Related .......: _Base64Decode
; Link ..........;
; Example .......; Yes
;
; ;==========================================================================================
Func _Base64Encode($sData)
    Local $oXml = ObjCreate("Msxml2.DOMDocument")
    If Not IsObj($oXml) Then
        SetError(1, 1, 0)
    EndIf

    Local $oElement = $oXml.createElement("b64")
    If Not IsObj($oElement) Then
        SetError(2, 2, 0)
    EndIf

    $oElement.dataType = "bin.base64"
    $oElement.nodeTypedValue = Binary($sData)
    Local $sReturn = $oElement.Text

    If StringLen($sReturn) = 0 Then
        SetError(3, 3, 0)
    EndIf

    Return $sReturn
EndFunc   ;==>_Base64Encode

 

Edited by DrAhmed

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Are you calling the function in a loop or only one time? Is the memory consumption just high or is it increasing permanetely?


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

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17 minutes ago, UEZ said:

Are you calling the function in a loop or only one time? Is the memory consumption just high or is it increasing permanetely?

1- In a loop ( but I set the sleep(1000) )

2-   Increasing permanetely

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Ok, then you doing something wrong in your loop as mentioned in post #8.

Show me that loop please.


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

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#13 ·  Posted (edited)

28 minutes ago, UEZ said:

Ok, then you doing something wrong in your loop as mentioned in post #8.

Show me that loop please.

Sure :

#include <gdiplus.au3>
#include <memory.au3>
#include <staticconstants.au3>


Global $ghGDIPDLL = $__g_hGDIPDll

While 1
    
  $data = Desk_Stream(50)
  
  
  ; Here I use TCPSend to send the data to my client
   
   Sleep(1000)
WEnd

Func Desk_Stream($Q)
    _GDIPlus_Startup()
    


    Local $hHBmp = _ScreenCapture_Capture("") ;create a GDI bitmap by capturing my desktop

   Local $hBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hHBmp) ;convert GDI bitmap to GDI+ bitmap


Local $hBitmap_Scaled = _GDIPlus_ImageResize($hBitmap,  @DesktopWidth / 12, @DesktopHeight / 1.2) ;resize image

    $sB64 = _Base64Encode( _GDIPlus_StreamImage2BinaryString($hBitmap_Scaled,$sQ, False, '')) ;coded by UEZ 2013 build 2014-01-25; based on the code
    

  _GDIPlus_Shutdown()

Return $sB64
EndFunc   ;==>Example



Func _GDIPlus_StreamImage2BinaryString($hBitmap, $iQuality , $bSave, $sFilename ) ;coded by UEZ 2013 build 2014-01-25; based on the code by Andreik
    Local $sImgCLSID, $tGUID, $tParams, $tData
     $sFormat = "JPG"

            $sImgCLSID = _GDIPlus_EncodersGetCLSID($sFormat)
            $tGUID = _WinAPI_GUIDFromString($sImgCLSID)
            $tData = DllStructCreate("int Quality")
            DllStructSetData($tData, "Quality", $iQuality) ;quality 0-100
            Local $pData = DllStructGetPtr($tData)
            $tParams = _GDIPlus_ParamInit(1)
            _GDIPlus_ParamAdd($tParams, $GDIP_EPGQUALITY, 1, $GDIP_EPTLONG, $pData)
                

    Local $hStream = _WinAPI_CreateStreamOnHGlobal() ;http://msdn.microsoft.com/en-us/library/ms864401.aspx
    If @error Then Return SetError(2, 0, 0)
    _GDIPlus_ImageSaveToStream($hBitmap, $hStream, DllStructGetPtr($tGUID), DllStructGetPtr($tParams))
    If @error Then Return SetError(3, 0, 0)

    Local $hMemory = _WinAPI_GetHGlobalFromStream($hStream) ;http://msdn.microsoft.com/en-us/library/aa911736.aspx
    If @error Then Return SetError(4, 0, 0)
    Local $iMemSize = _MemGlobalSize($hMemory)
    If Not $iMemSize Then Return SetError(5, 0, 0)
    Local $pMem = _MemGlobalLock($hMemory)
    $tData = DllStructCreate("byte[" & $iMemSize & "]", $pMem)
    Local $bData = DllStructGetData($tData, 1)
   _WinAPI_ReleaseStream($hStream) ;http://msdn.microsoft.com/en-us/library/windows/desktop/ms221473(v=vs.85).aspx

    _MemGlobalFree($hMemory)
    
    Return $bData
EndFunc   ;==>_GDIPlus_StreamImage2BinaryString

Func _Base64Encode($sData)
    Local $oXml = ObjCreate("Msxml2.DOMDocument")
    If Not IsObj($oXml) Then
        SetError(1, 1, 0)
    EndIf

    Local $oElement = $oXml.createElement("b64")
    If Not IsObj($oElement) Then
        SetError(2, 2, 0)
    EndIf

    $oElement.dataType = "bin.base64"
    $oElement.nodeTypedValue = Binary($sData)
    Local $sReturn = $oElement.Text

    If StringLen($sReturn) = 0 Then
        SetError(3, 3, 0)
    EndIf

    Return $sReturn
EndFunc   ;==>_Base64Encode

 

Edited by DrAhmed

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As I said above you have to release the resources!

Do something like this here:

#include <gdiplus.au3>
#include <memory.au3>
#include <staticconstants.au3>

_GDIPlus_Startup()

Global $ghGDIPDLL = $__g_hGDIPDll

While 1

    $data = Desk_Stream(50)


    ; Here I use TCPSend to send the data to my client

    Sleep(1000)
WEnd

_GDIPlus_Shutdown()



Func Desk_Stream($Q)

    Local $hHBmp = _ScreenCapture_Capture("") ;create a GDI bitmap by capturing my desktop

    Local $hBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hHBmp) ;convert GDI bitmap to GDI+ bitmap

    Local $hBitmap_Scaled = _GDIPlus_ImageResize($hBitmap, @DesktopWidth / 12, @DesktopHeight / 1.2) ;resize image

    $sB64 = _Base64Encode(_GDIPlus_StreamImage2BinaryString($hBitmap_Scaled, $sQ, False, '')) ;coded by UEZ 2013 build 2014-01-25; based on the code

    ;release resources otherwise memory leak
    _WinAPI_DeleteObject($hHBmp)
    _GDIPlus_ImageDispose($hBitmap)
    _GDIPlus_ImageDispose($hBitmap_Scaled)
    

    Return $sB64
EndFunc   ;==>Desk_Stream



Func _GDIPlus_StreamImage2BinaryString($hBitmap, $iQuality, $bSave, $sFilename) ;coded by UEZ 2013 build 2014-01-25; based on the code by Andreik
    Local $sImgCLSID, $tGUID, $tParams, $tData
    $sFormat = "JPG"

    $sImgCLSID = _GDIPlus_EncodersGetCLSID($sFormat)
    $tGUID = _WinAPI_GUIDFromString($sImgCLSID)
    $tData = DllStructCreate("int Quality")
    DllStructSetData($tData, "Quality", $iQuality) ;quality 0-100
    Local $pData = DllStructGetPtr($tData)
    $tParams = _GDIPlus_ParamInit(1)
    _GDIPlus_ParamAdd($tParams, $GDIP_EPGQUALITY, 1, $GDIP_EPTLONG, $pData)


    Local $hStream = _WinAPI_CreateStreamOnHGlobal() ;http://msdn.microsoft.com/en-us/library/ms864401.aspx
    If @error Then Return SetError(2, 0, 0)
    _GDIPlus_ImageSaveToStream($hBitmap, $hStream, DllStructGetPtr($tGUID), DllStructGetPtr($tParams))
    If @error Then Return SetError(3, 0, 0)

    Local $hMemory = _WinAPI_GetHGlobalFromStream($hStream) ;http://msdn.microsoft.com/en-us/library/aa911736.aspx
    If @error Then Return SetError(4, 0, 0)
    Local $iMemSize = _MemGlobalSize($hMemory)
    If Not $iMemSize Then Return SetError(5, 0, 0)
    Local $pMem = _MemGlobalLock($hMemory)
    $tData = DllStructCreate("byte[" & $iMemSize & "]", $pMem)
    Local $bData = DllStructGetData($tData, 1)
    _WinAPI_ReleaseStream($hStream) ;http://msdn.microsoft.com/en-us/library/windows/desktop/ms221473(v=vs.85).aspx

    _MemGlobalFree($hMemory)

    Return $bData
EndFunc   ;==>_GDIPlus_StreamImage2BinaryString

Func _Base64Encode($sData)
    Local $oXml = ObjCreate("Msxml2.DOMDocument")
    If Not IsObj($oXml) Then
        SetError(1, 1, 0)
    EndIf

    Local $oElement = $oXml.createElement("b64")
    If Not IsObj($oElement) Then
        SetError(2, 2, 0)
    EndIf

    $oElement.dataType = "bin.base64"
    $oElement.nodeTypedValue = Binary($sData)
    Local $sReturn = $oElement.Text

    If StringLen($sReturn) = 0 Then
        SetError(3, 3, 0)
    EndIf

    Return $sReturn
EndFunc   ;==>_Base64Encode

 


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16 minutes ago, UEZ said:

As I said above you have to release the resources!

Do something like this here:

#include <gdiplus.au3>
#include <memory.au3>
#include <staticconstants.au3>

_GDIPlus_Startup()

Global $ghGDIPDLL = $__g_hGDIPDll

While 1

    $data = Desk_Stream(50)


    ; Here I use TCPSend to send the data to my client

    Sleep(1000)
WEnd

_GDIPlus_Shutdown()



Func Desk_Stream($Q)

    Local $hHBmp = _ScreenCapture_Capture("") ;create a GDI bitmap by capturing my desktop

    Local $hBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hHBmp) ;convert GDI bitmap to GDI+ bitmap

    Local $hBitmap_Scaled = _GDIPlus_ImageResize($hBitmap, @DesktopWidth / 12, @DesktopHeight / 1.2) ;resize image

    $sB64 = _Base64Encode(_GDIPlus_StreamImage2BinaryString($hBitmap_Scaled, $sQ, False, '')) ;coded by UEZ 2013 build 2014-01-25; based on the code

    ;release resources otherwise memory leak
    _WinAPI_DeleteObject($hHBmp)
    _GDIPlus_ImageDispose($hBitmap)
    _GDIPlus_ImageDispose($hBitmap_Scaled)
    

    Return $sB64
EndFunc   ;==>Desk_Stream



Func _GDIPlus_StreamImage2BinaryString($hBitmap, $iQuality, $bSave, $sFilename) ;coded by UEZ 2013 build 2014-01-25; based on the code by Andreik
    Local $sImgCLSID, $tGUID, $tParams, $tData
    $sFormat = "JPG"

    $sImgCLSID = _GDIPlus_EncodersGetCLSID($sFormat)
    $tGUID = _WinAPI_GUIDFromString($sImgCLSID)
    $tData = DllStructCreate("int Quality")
    DllStructSetData($tData, "Quality", $iQuality) ;quality 0-100
    Local $pData = DllStructGetPtr($tData)
    $tParams = _GDIPlus_ParamInit(1)
    _GDIPlus_ParamAdd($tParams, $GDIP_EPGQUALITY, 1, $GDIP_EPTLONG, $pData)


    Local $hStream = _WinAPI_CreateStreamOnHGlobal() ;http://msdn.microsoft.com/en-us/library/ms864401.aspx
    If @error Then Return SetError(2, 0, 0)
    _GDIPlus_ImageSaveToStream($hBitmap, $hStream, DllStructGetPtr($tGUID), DllStructGetPtr($tParams))
    If @error Then Return SetError(3, 0, 0)

    Local $hMemory = _WinAPI_GetHGlobalFromStream($hStream) ;http://msdn.microsoft.com/en-us/library/aa911736.aspx
    If @error Then Return SetError(4, 0, 0)
    Local $iMemSize = _MemGlobalSize($hMemory)
    If Not $iMemSize Then Return SetError(5, 0, 0)
    Local $pMem = _MemGlobalLock($hMemory)
    $tData = DllStructCreate("byte[" & $iMemSize & "]", $pMem)
    Local $bData = DllStructGetData($tData, 1)
    _WinAPI_ReleaseStream($hStream) ;http://msdn.microsoft.com/en-us/library/windows/desktop/ms221473(v=vs.85).aspx

    _MemGlobalFree($hMemory)

    Return $bData
EndFunc   ;==>_GDIPlus_StreamImage2BinaryString

Func _Base64Encode($sData)
    Local $oXml = ObjCreate("Msxml2.DOMDocument")
    If Not IsObj($oXml) Then
        SetError(1, 1, 0)
    EndIf

    Local $oElement = $oXml.createElement("b64")
    If Not IsObj($oElement) Then
        SetError(2, 2, 0)
    EndIf

    $oElement.dataType = "bin.base64"
    $oElement.nodeTypedValue = Binary($sData)
    Local $sReturn = $oElement.Text

    If StringLen($sReturn) = 0 Then
        SetError(3, 3, 0)
    EndIf

    Return $sReturn
EndFunc   ;==>_Base64Encode

 

Wow , thanks it fixed RAM usage but CPU Usage still high ( Between 6-12 )

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With Sleep(1000)?

1 person likes this

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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1 minute ago, UEZ said:

With Sleep(1000)?

yes

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6-12% is not that high but for Sleep(1000) it is.

 

I don't know what code is behind 

; Here I use TCPSend to send the data to my client

Have a look there.

1 person likes this

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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      Help would be much appreciated.


    • 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  
       

    • SimTheNo1
      By SimTheNo1
      I am busy with building a solution for change monitoring of VOIP call program and to be properly automated means among others need for some limited OCR functionality. Current works of others are way too much overkill for this case what makes the need to build it myself. But to do it properly I significantly have to increase my knowledge about digital graphics management.
      For now I already have discovered here and there some mind blowing  Autoit miracles what can be achieved with Windows own possibilities to manipulate that what is output to the monitor. And as far I can judge there are 2 options to process graphics without use of any external libraries like ImageMagick, FreeImage and so on. These are:
       WinAPI  GDIPlus It is for me quite obvious to have various holes in general understanding of graphics and it is once more very clear what advantages gives consistent general study in 1 or another official institutions like University.  Cause there you are introduced into certain domain of knowledge in a way which usually has been perfected over long period of time. So you are not overloaded by stuff which requires a certain amount of information to be initially clear for you. For example, before starting to solve physics you first learn to read, count and so on and then move to subjects like physics.
      Though in my case opportunity to study in such educational system I had only for 8 years, from my 7th to 15th year of age in the country that was falling apart now Ukraine but used to be USSR, was all what it was. After have immigrated to Netherlands possibilities to study further haven't occur. And this therefor causes often various implications when going deep in that or another field of practical knowledge acquiring for any needed physical result, like programming to perform enormous amount of tasks. In this particular case automating VOIP call program.
      Anyway, right now I think the best direction to move is to concentrate on as basic as possible image management and if someone would maybe explain in general what is a pixel will definitely help. Particularly I am very curious about how to do picture manipulations in Autoit. Especially would help a lot to produce eventually following functions:
      createImage($imageFileName, $width, $height, $color) readImagePixel($imageFileName, $x, $y)  writeImagePixel($imageFileName, $x, $y) I do not know exactly how image is handled in computer but preferably above mentioned functions should deal with so far possible origin of graphics creation on computer. But nevertheless I definitely would love to hear any proposition for solution.
      The problem with explaining screenshots:
       VOIPConnect full Window  Part of Window with control to monitor for changes  Exact location of area where actual changes occur and have to be processed  It comes down to a rectangle of approximately 51 pixel wide and 7 pixel high. In fact if I get to learn as far as to be able exactly read, write and compare 2 images consistently across different computers I could narrow down then even further the area to watch as little as a square of 2-5 pixels wide. 
      To finish here is last detail about particularly no need for ultra fast solution at all. This because it is needed only once when it is first run on a new computer and to have to wait few minutes while it is being set instead of just a few seconds make no sence.
      This is it and what I too think to do beside this very particular case is to purify out beautiful generic Autoit functions for core image manipulation by using WinAPI or/and GDIPlus.