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_GDIPlus_BitmapApplyFilter v0.9.6 build 2017-05-14 beta

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wakillon

No, now you are not a newbie in FreeBasic, but an advanced user :thumbsup:

The effects are beautiful and your work is fantastic!
Succeed to adapt GDI functions used with AutoIt in FreeBASIC is downright genial!
The execution time is so fast !

A so small dll who can give so great effects, you deserve to be named the GDI King ! :party:

Thanks a lot ! :)


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

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mLipok

Looks impresive.

mLipok


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UEZ

@wakillon / @mLipok: thanks for your feedback!

 

Small Update:

  • Added UDF headers
  • speeded up OilPainting, Dilatation, Erosion and Kuwahara functions (GdipBitmapGetPixel / GdipBitmapSetPixel is too slow)

 

I compiled the DLL with SSE2 option. I hope it will work also for you.

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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Lakes

I had to look up what the Kuwahara (interesting name) function was. :)


2015 - Still no flying cars, instead blankets with sleeves.

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wakillon

I have tested previous version and latest for Kuwahara func and it's 6X faster

Edit : for a png (3200x2400) it's ~ 10X faster

Very good improvement ! :thumbsup:

Edited by wakillon

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

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UEZ

When I understood multi threading properly I will add it to some of the functions.


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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dmob

Wow!! is all I can say... :graduated:

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wakillon
5 hours ago, UEZ said:

When I understood multi threading properly I will add it to some of the functions.

UEZ, please do a pause for avoid a brain overheating ! ;)

  • Like 1

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

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UEZ
Just now, wakillon said:

UEZ, please do a pause for avoid a brain overheating ! ;)

Multi theading is more for women... :P

 

I think I've understood the concept of mt but I need to do several tests to fully cover it.


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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wakillon

Pff...and you said you were a newbie !
What modesty ! :D


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

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UEZ
9 minutes ago, wakillon said:

Pff...and you said you were a newbie !
What modesty ! :D

But that's the truth. I started with FB 3-4 weeks ago because I "tasted blood" to speed up that GDI+ stuff and I must say it is very powerful like a stallion. ;)

Not too hard to learn because it has similar AutoIt syntax like most BASIC languages.

Edited by UEZ

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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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wakillon

I agree with similar syntax but variables declaration seems to be more complex !


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

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wakillon

Nice new effects ! 

Bravo UEZ ! :thumbsup:

 


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

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Jardz

Truly amazing!! Thank you UEZ!

I'd love to know the steps you did to achieve unsharp masking in GDI+ :blink:

 

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UEZ
9 minutes ago, Jardz said:

Truly amazing!! Thank you UEZ!

I'd love to know the steps you did to achieve unsharp masking in GDI+ :blink:

 

The issue is not GDI+ but speed. You have to calculate each pixel separately which is a pain doing it with AutoIt.

Doing it with AutoIt takes ~10-15 times longer!


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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Jardz

Thanks UEZ,

I was hoping a function within GDI or GDI+ would do the hard work for me.

I was looking at MaskBlt in GDI but I don't think it would work.

 

 

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UEZ

This is how convolution works in AutoIt using GDI+

#include <GDIPlus.au3>

Global $sFile = FileOpenDialog("Select an image", "", "Image (*.jpg;*.png;*.bmp;*.gif)")
If @error Then Exit

_GDIPlus_Startup()
Global $hImage = _GDIPlus_ImageLoadFromFile($sFile)
If @error Then
    _GDIPlus_Shutdown()
    Exit
EndIf

Global $aMatrix_Unsharp_3x3[3][3] = [[-1, -1, -1], _
                                     [-1,  9, -1], _
                                     [-1, -1, -1]]

Global $aDim = _GDIPlus_ImageGetDimension($hImage)
Global $hGUI = GUICreate("GDI+", $aDim[0], $aDim[1])
Global $iPic = GUICtrlCreatePic("", 0, 0, $aDim[0], $aDim[1])

Global Const $STM_SETIMAGE = 0x0172
Global $fTimer = TimerInit()
Global $hBitmap = _GDIPlus_BitmapApplyFilter_Convolution($hImage, $aMatrix_Unsharp_3x3)
ConsoleWrite("Finished in " & TimerDiff($fTimer) & " ms." & @CRLF)
Global $hBmp_GDI = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hBitmap)
_WinAPI_DeleteObject(GUICtrlSendMsg($iPic, $STM_SETIMAGE, $IMAGE_BITMAP, $hBmp_GDI))

GUISetState()

Do
Until GUIGetMsg() = -3

_WinAPI_DeleteObject($hBmp_GDI)
_GDIPlus_ImageDispose($hBitmap)
_GDIPlus_ImageDispose($hImage)
_GDIPlus_Shutdown()


Func _GDIPlus_BitmapApplyFilter_Convolution($hImage, $aMatrix, $fFactor = 1.0, $fBias = 0.0)
    If Not IsPtr($hImage) Then Return SetError(1, 0, 0)
    If Not IsArray($aMatrix) Then Return SetError(2, 0, 0)
    If UBound($aMatrix, 2) < 3 Then Return SetError(3, 0, 0)
    Local $aDim = _GDIPlus_ImageGetDimension($hImage)
    If @error Then Return SetError(4, 0, 0)
    Local $iW = $aDim[0], $iH = $aDim[1]
    Local $filterHeight = UBound($aMatrix), $filterWidth = UBound($aMatrix, 2)
    Local $tConvolution = DllStructCreate("float fMatrix[" & $filterHeight * $filterWidth & "]"), $iX, $iY, $i = 1
    For $iY = 0 To $filterHeight - 1
        For $iX = 0 To $filterWidth - 1
            $tConvolution.fMatrix(($i)) = $aMatrix[$iY][$iX]
            $i += 1
        Next
    Next

    Local $fW = $filterWidth / 2, $fH = $filterHeight / 2, $iRowOffset

    Local $tBitmapData = _GDIPlus_BitmapLockBits($hImage, 0, 0, $iW, $iH)
    Local $tPixel = DllStructCreate("int argb[" & $iW * $iH & "]", $tBitmapData.Scan0)

    Local $hBitmap_Converted = _GDIPlus_BitmapCreateFromScan0($iW, $iH)
    Local $tBitmapData_Convolution = _GDIPlus_BitmapLockBits($hBitmap_Converted, 0, 0, $iW, $iH, $GDIP_ILMWRITE, $GDIP_PXF32ARGB)
    Local $tPixel_Convolution = DllStructCreate("int argb[" & $iW * $iH & "]", $tBitmapData_Convolution.Scan0)

    Local $filterX, $filterY, $fRedSum, $fRedSumX, $fRedSumY, $fGreenSum, $fGreenSumX, $fGreenSumY, $fBlueSum, $fBlueSumX, $fBlueSumY, $fSum, _
          $imageX, $imageY, $c, $iARGB, $iR, $iG, $iB, $fMatrix
    For $iY = 0 To $iH - 1
        $iRowOffset = $iY * $iW + 1
        For $iX = 0 To $iW - 1
            $fRedSum = 0.0
            $fRedSumX = 0.0
            $fRedSumY = 0.0
            $fGreenSum = 0.0
            $fGreenSumX = 0.0
            $fGreenSumY = 0.0
            $fBlueSum = 0.0
            $fBlueSumX = 0.0
            $fBlueSumY = 0.0
            $fSum = 0.0
            $i = 1
            For $filterY = 0 To $filterHeight - 1
                For $filterX = 0 To $filterWidth - 1
                    $imageX = 1 + Mod(Int($iX - $fW + $filterX + $iW), $iW)
                    $imageY = 1 + Mod(Int($iY - $fH + $filterY + $iH), $iH)
                    $c = $tPixel.argb(($imageY * $iW + $imageX))
                    $iR = BitAND(BitShift($c, 16), 0xFF)
                    $iG = BitAND(BitShift($c, 8), 0xFF)
                    $iB = BitAND($c, 0xFF)
                    $fMatrix = $tConvolution.fMatrix(($i))
                    $fRedSum += $iR * $fMatrix
                    $fGreenSum += $iG * $fMatrix
                    $fBlueSum += $iB * $fMatrix
                    $fSum += $fMatrix
                    $i += 1
                Next
            Next
            $fSum = $fSum <= 0 ? 1.0 : $fSum
            $iARGB = 0xFF000000 + _
                     BitShift(Min(Abs(Int($fFactor * $fRedSum / $fSum + $fBias)), 255), -16) + _
                     BitShift(Min(Abs(Int($fFactor * $fGreenSum / $fSum + $fBias)), 255), -8) + _
                              Min(Abs(Int($fFactor * $fBlueSum / $fSum + $fBias)), 255)
            $tPixel_Convolution.argb(($iRowOffset + $iX)) = $iARGB
        Next
    Next
    _GDIPlus_BitmapUnlockBits($hBitmap, $tBitmapData_Convolution)
    _GDIPlus_BitmapUnlockBits($hBitmap, $tBitmapData)
    Return $hBitmap_Converted
EndFunc

Func Min($a, $b)
    If $a < $b Then Return $a
    Return $b
EndFunc

Compare the speed to the DLL version. ^_^

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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Jardz

Thanks UEZ that's brilliant!!

You weren't wrong about the speed :P

 

It'll take me a few days to fully understand it, but it will teach me a lot so thank you very much!!!

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      The text file I'm working with has 16 columns. If I setup filters for 4 columns and include AND / OR capability that would require prebuilding 24 arrays to cover the various combinations.
      If using the slower method of building a filtered array in real time each time a different filter is selected is the only way to go with this then I'll live with it. It is less overhead. .
      Below is the code I'm currently using to "filter" an array.  My next change was going to add AND / OR functionality (see the info above the header for where I was going with this) .
      ; Description ...: Delete rows from an array and only keep rows that meet the crtieria of identified columns. ; ; Next Change: Add AND/OR to combine filters. Use array to hold multiple criteria and values? ; ; Local $aCriteria[][] = [["",$iColNbr1, $sOperator1, $vValue1], ["AND",$iColNbr2, $sOperator2, $vValue2], ["OR",$iColNbr3, $sOperator3, $vValue3]] ; The first set of criteria ["", $iColNbr1, $sOperator1, $vValue1] must start with a "". ; If anything is entered in that first parameter it will be ignored. ; If the first parameter in any additional criteria set is left blank, or it is not OR, it will default to AND. ; If $aArray is 1 dimension with more than one set of criteria, only the first set will be used. ; Any criteria that uses a column that is less than 0 or higher than the total number of columns in the array will return an error. ; ; Recognized data types for this function are: S (String), D (Date), N (Number). ; ; Recognized Operators are: "EQ", "NEQ", "IN", "GT", "GE", "LT", "LE", "BETWEEN". ; ****** Not all operators work with all data types. ; #FUNCTION# ==================================================================================================================== ; Name ..........: _ArrayFilter ; Description ...: Delete rows from an array and only keep rows that meet the crtieria of identified columns. ; Syntax ........: _ArrayFilter(Byref $aArray[, $iCol = 0[, $sOperator = "EQ"[, $vValue = ""[, $iOptionBase = 0]]]]) ; Parameters ....: $aArray - Array being filtered. ; $iCol - [optional] Column to filter. Default is 0. ; $sOperator - [optional] Operator. Default is "EQ". ; $vValue - [optional] Criteria to compare the column/row value against. ; $iOptionBase - [optional] Starting row. Default is 0. ; Return values .: None ; Author ........: OldGuyWalking ; Modified ......: ; Remarks .......: ; Related .......: ; Link ..........: ; Example .......: No ; =============================================================================================================================== Func _ArrayFilter(ByRef $aArray, $iCol = 0, $sOperator = "EQ", $vValue = "", $iOptionBase = 0) Local $hFunc = _ArrayFilter $vValue = StringStripWS($vValue, 3) If $vValue = "[Today]" Then $vValue = _NowCalcDate() EndIf Local $sMsg Local $sMsgHdr Local $n1 Local $sDeleteIndex Local $aDeleteIndex Local $iCnt = 0 Local $iRows Local $iColMax Local $iDim Local $sData Local $sVType Local $sDType Local $LBound Local $iDiff If $iOptionBase <> 0 Then $iOptionBase = 1 EndIf If _IsValueEmpty($aArray) Then Return SetError(1, 0, "") EndIf $iDim = UBound($aArray, $UBOUND_DIMENSIONS) If $iDim = 1 Then If $iCol <> 0 Then $iCol = 0 EndIf EndIf If $iDim = 2 Then $iColMax = UBound($aArray, $UBOUND_COLUMNS) - 1 If $iCol > $iColMax Or $iCol < 0 Then Return SetError(1, 0, "") EndIf EndIf If Not _IsBetween($iDim, 1, 2) Then ;############### MSG2 - START ############### $sMsgHdr = FuncName($hFunc) & " :Line: " & @ScriptLineNumber & " :Error= " & @error $sMsg = "Invalid Dimensioned Array. Must be a 1 or 2 dimensional array." MsgBox(0, $sMsgHdr, $sMsg) Return SetError(1, 0, "") ;############### MSG2 - END ############### EndIf ; Identify what the value is ; If it is not a String, Int, Number, or Date then skip. Select Case _DateIsValid($vValue) = 1 $sVType = "D" Case IsNumber($vValue) = 1 $sVType = "N" Case IsString($vValue) = 1 $sVType = "S" Case Else ;############### MSG2 - START ############### $sMsgHdr = FuncName($hFunc) & " :Line: " & @ScriptLineNumber & " :Error= " & @error $sMsg = "Comparison value must be a " & @CRLF & _ "1. Date in YYYY/MM/DD format " & @CRLF & _ "2. A string " & @CRLF & _ "3. A number " & @CRLF MsgBox(0, $sMsgHdr, $sMsg) Return SetError(1, 0, "") ;############### MSG2 - END ############### EndSelect $iCnt = 0 For $n1 = UBound($aArray) - 1 To $iOptionBase Step -1 If $iDim = 1 Then $sData = StringStripWS($aArray[$n1], 3) ElseIf $iDim = 2 Then $sData = StringStripWS($aArray[$n1][$iCol], 3) EndIf Select Case _DateIsValid($sData) = 1 $sDType = "D" Case IsNumber($sData) = 1 $sDType = "N" Case IsString($sData) = 1 $sDType = "S" Case Else $sDType = "U" EndSelect If _IsValueEmpty($sData) Then $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop ; $sDType = $sVType EndIf If Not _IsValueEmpty($sData) And $sDType <> $sVType Then $sDeleteIndex = $sDeleteIndex & $n1 & "," $iCnt += 1 ContinueLoop EndIf Select Case $sOperator = "EQ" Switch $sDType Case "D" $iDiff = _DateDiff("D", $vValue, $sData) If $iDiff = 0 Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop Case "S" If $sData = $vValue Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop Case "N" If $sData = $vValue Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop EndSwitch Case $sOperator = "NEQ" Switch $sDType Case "D" If $sData <> $vValue Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop Case "S" If $sData <> $vValue Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop Case "N" If $sData <> $vValue Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop EndSwitch Case $sOperator = "IN" Switch $sDType Case "S" If StringInStr($sData, $vValue) Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop EndSwitch Case $sOperator = "GT" Switch $sDType Case "N" If $sData > $vValue Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop Case "D" $iDiff = _DateDiff("D", $vValue, $sData) If $iDiff > 0 Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop EndSwitch Case $sOperator = "GE" Switch $sDType Case "N" If $sData >= $vValue Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop Case "D" $iDiff = _DateDiff("D", $vValue, $sData) If $iDiff >= 0 Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop EndSwitch Case $sOperator = "LT" Switch $sDType Case "N" If $sData < $vValue Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop Case "D" $iDiff = _DateDiff("D", $vValue, $sData) If $iDiff < 0 Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop EndSwitch Case $sOperator = "LE" Switch $sDType Case "N" If $sData <= $vValue Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop Case "D" $iDiff = _DateDiff("D", $vValue, $sData) If $iDiff <= 0 Then ContinueLoop EndIf $sDeleteIndex &= $n1 & "," $iCnt += 1 ContinueLoop EndSwitch EndSelect Next If $iCnt > 0 Then _DeleteArrayRows($aArray, $sDeleteIndex) EndIf EndFunc ;==>_ArrayFilter Thanks in advance.
      OldGuyWalking
    • c.haslam
      By c.haslam
      I think that _GDIPlus_ImageGetPropertyItem should return a Property Item that can readily be set as a property of another image. Why would one want to do this? A script might (as one of mine does) edit an image of a .jpg file then write the result to a .jpg file. In editing it, in my case, the number of horizontal and vertical pixels change, and the date/time edited should be set as a property. All other property items remain the same. Other GDI+ users may change other properties.
      So an approach is to copy all the property items from image1 to image2, then update a few properties.
      M$ provides a Property Item class (id, length, pointer to an array of values) but _GDIPlus_ImageGetPropertyItem returns something different.
      I think that, wherever reasonable, UDFs that are wrappers for M$ methods should work like M$'s methods. _GDIPlus_ImageGetPropertyItem does not do this:
      While M$ returns 2 values for a value that is a ratio of 2 numbers,  _GDIPlus_ImageGetPropertyItem returns numerator/denominator as a single value (often a Double). _GDIPlus_ImageSetPropertyItem (when included in GDIPlus.au3) will be unable to set ratio property items properly because it cannot know what the numerator and denominator are. So copying such property items will not work properly. M$ has a Void* buffer where the buffer is an array of values but _GDIPlus_ImageGetPropertyItem() returns the values in the same 1-d array as id, length and type. M$'s approach produces a 1-d array with the same number of elements for all property items while _GDIPlus_ImageGetPropertyItem produces a 1-d array with various numbers of elements. To me, this is not good programming practice. For a photo from a Sony camera, the worst case has 1-d array with 67 elements. When combined into a 2-d array with the property items of all properties, there are 66 rows and 67 columns, with many elements not used. So I suggest that _GDIPlus_ImageGetPropertyItem look like this:
      ; #FUNCTION# ==================================================================================================================== ; Name ..........: cGDIPlus_ImageGetPropertyItem ; Description ...: Gets a specified property item (piece of meta data) from an Image object ; Syntax ........: cGDIPlus_ImageGetPropertyItem($hImage, $iPropID) ; Parameters ....: $hImage - Pointer to an image object ; $iPropID - Identifier of the property item to be retrieved ; Return values .: Success: Array containing the values of the property item ; [0] - identifier ; [1] - size, in bytes, of the value array ; [2] - type of value(s) in the value array ; [3] - value array ; Failure: Sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GPID_ERR*). ; Author ........: Eukalyptus ; Modified ......: c.haslam ; Remarks .......: types: unsigned byte = 1, ASCII string = 2, unsigned short = 3, unsigned long = 4, ; unsinged rational = 5, undefined = 7, signed long = 9, signed rational = 10 ; Related .......: _GDIPlus_ImageGetPropertyIdList ; Link ..........: https://msdn.microsoft.com/en-us/library/windows/desktop/ms535390(v=vs.85).aspx, ; https://msdn.microsoft.com/en-us/library/windows/desktop/ms534493(v=vs.85).aspx, ; https://msdn.microsoft.com/en-us/library/windows/desktop/ms534414(v=vs.85).aspx ; Example .......: Yes ; =============================================================================================================================== Func cGDIPlus_ImageGetPropertyItem($hImage, $iPropID) Local $iSize = __GDIPlus_ImageGetPropertyItemSize($hImage, $iPropID) If @error Then Return SetError(@error, @extended, -1) Local $tBuffer = DllStructCreate("byte[" & $iSize & "];") Local $pBuffer = DllStructGetPtr($tBuffer) Local $aResult = DllCall($__g_hGDIPDll, "int", "GdipGetPropertyItem", "handle", $hImage, "uint", _ $iPropID, "uint", $iSize, "struct*", $tBuffer) If @error Then Return SetError(@error, @extended, -1) If $aResult[0] Then Return SetError(10, $aResult[0], False) Local $tPropertyItem = DllStructCreate("int id; int length; short type; ptr pvalue;", $pBuffer) Local $iBytes = DllStructGetData($tPropertyItem, "length") Local $pValue = DllStructGetData($tPropertyItem, "pvalue") Local $aRet[4] Local $type = DllStructGetData($tPropertyItem,'type') Local $tValues, $iValues Switch $type Case 2 ;ASCII String $iValues = 1 $tValues = DllStructCreate("char[" & $iBytes & "];", $pValue) Case 3 ;Array of UShort $iValues = Int($iBytes / 2) $tValues = DllStructCreate("ushort[" & $iValues & "];", $pValue) Case 4, 5 ;Array of UInt / Fraction $iValues = Int($iBytes / 4) $tValues = DllStructCreate("uint[" & $iValues & "];", $pValue) Case 9, 10 ;Array of Int / Fraction $iValues = Int($iBytes / 4) $tValues = DllStructCreate("int[" & $iValues & "];", $pValue) Case Else ;Array of Bytes $iValues = 1 $tValues = DllStructCreate("byte[" & $iBytes & "];", $pValue) EndSwitch $aRet[0] = DllStructGetData($tPropertyItem,'id') $aRet[1] = $iBytes $aRet[2] = $type Local $aVals[$iValues] If $type=2 Or $type=7 Then ; ASCII string or undefined $aVals[0] = DllStructGetData($tValues,1) Else For $i = 0 To $iValues-1 $aVals[$i] = DllStructGetData($tValues,1,$i+1) Next EndIf $aRet[3] = $aVals Return $aRet EndFunc And here is an example:
      #include <GDIPlus.au3> #include <Array.au3> Example() Func Example() _GDIPlus_Startup() Local $hImage = _GDIPlus_ImageLoadFromFile(RegRead((@AutoItX64 = True ? "HKLM\SOFTWARE\Wow6432Node\AutoIt v3\AutoIt" : "HKLM\SOFTWARE\AutoIt v3\AutoIt"), "InstallDir") & "\Examples\GUI\Torus.png") If @error Then _GDIPlus_Shutdown() MsgBox(16, "", "An error has occured - unable to load image!", 30) Return False EndIf Local $ar = _GDIPlus_ImageGetPropertyIdList($hImage) Local $vPropNbrs[UBound($ar,1)-1] ; Extract ID numbers For $i = 1 To UBound($ar,1)-1 $vPropNbrs[$i-1] = $ar[$i][0] Next ; Get all property items Local $aPropItems[UBound($vPropNbrs)][4],$vPropItem For $i = 0 To UBound($vPropNbrs)-1 $vPropItem = cGDIPlus_ImageGetPropertyItem($hImage,$vPropNbrs[$i]) For $j = 0 To 3 $aPropItems[$i][$j] = $vPropItem[$j] Next Next ; Collapse values arrays so _ArrayDisplay can display them Local $ar = $aPropItems For $i = 0 To UBound($aPropItems,1)-1 $ar[$i][0] = '0x'&Hex($ar[$i][0],4) $ar[$i][3] = '' For $j = 0 To UBound($aPropItems[$i][3])-1 $ar[$i][3] &= ($aPropItems[$i][3])[$j]&'|' Next $ar[$i][3] = StringTrimRight($ar[$i][3],1) Next _ArrayDisplay($ar) _GDIPlus_Shutdown() EndFunc Unfortunately this example (based on one now in the Help) does not exercise most of the item types, but I do not know of a file with EXIF metadata that is on most PCs. I have tested this code by updating and adding property items to torus.jpg and to a photo taken by a Sony camera. The code for implementing and calling _GDIPlus_ImageSetPropertyItem will be fairly simple [see below].
       
      Your thoughts?
       
    • c.haslam
      By c.haslam
      I have a strange symptom of a problem somewhere in my code, or in a UDF: when I add code to get all properties of a GDI+ image to a 6000-line script,  the variable type of a parameter is reported as a pointer when the caller clearly has this argument as a string. If I comment out my code that gets the properties, the function properly sees the parameter as a string.
      [Edit: The reporting as a pointer and getting image properties are miles apart, both in where they are in the script code and in where they are run.]
      At this point, I am looking for clues as to why this is happening, so the hunt is on!
      I have noticed one odd thing, in _GDIPlus_ImageGetPropertyIdList() I see a line that begins Local $sPropertyTagInfo = . This "line" is split into 2 lines. SCiTE shows that the first line is 2454 characters and the second 2400. Adding these numbers I get 4854 characters.
      But the Help for AutoIt3 Limits/defaults says that MAXLINESIZE, Maximum size for a line of script, is 4096 characters.
      The line would exceed the limit if AutoIt considers the subject line to be 1 line and not 2 lines.
      My question: is this line legal? Is buffer overun possible?
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