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Xibalba

How to read pixel data using _GDIPlus_BitmapLockBits?

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Xibalba

I'm experimenting with GetPixel functions (in order to find the fastest) and have this simple part in my script:

Local $iWidth = 150
Local $iHeight = 300
Local $array[$iHeight][$iWidth]

For $i = 1 To $iHeight Step 1
    For $j = 1 To $iWidth Step 1
        $array[$i-1][$j-1] = PixelGetColor($iHeight-1, $iWidth-1, $Handle)
    Next
Next

Trying to get the equivalent using the GDI+ library (more specifically, using the _GDIPlus_BitmapLockBits function) I've got this code:

Global $Handle = WinGetHandle("Paint")

Local $sWow64 = ""
If @AutoItX64 Then $sWow64 = "\Wow6432Node" ; X64 running support

; Initialize GDI+ library
_GDIPlus_Startup()

; Capture 32 bit bitmap to a HBITMAP
WinActivate($Handle)
Local $hBMP = _ScreenCapture_CaptureWnd("", $Handle) ; _ScreenCapture_CaptureWnd returns a handle to an HBITMAP if $sFileName is empty
Local $pBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hBMP)

Local $iWidth = 150
Local $iHeight = 300
Local $array[$iHeight][$iWidth]

Local $BitmapData = _GDIPlus_BitmapLockBits($pBitmap, 0, 0, $iWidth, $iHeight, $GDIP_ILMREAD, $GDIP_PXF32RGB)

Local $Scan0 = DllStructGetData($BitmapData, "Scan0")
Local $Stride = DllStructGetData($BitmapData, "Stride")
Local $pixel = $Scan0 + $Stride + 4

Local $dPixel = DllStructCreate("dword", $pixel)

MsgBox(0, "mBox", "$Scan0=" & $Scan0 & "      $Stride=" & $Stride & "     pixel=" & $pixel)
For $i = 1 To $iHeight Step 1
    For $j = 1 To $iWidth Step 1
        ; <?>
    Next
Next

; Clean up resources
_GDIPlus_BitmapUnlockBits($pBitmap, $BitmapData)
_GDIPlus_BitmapDispose($pBitmap)
_WinAPI_DeleteObject($hBMP)
_GDIPlus_Shutdown()

And yeah, there's where I'm struggling at the moment (see ; <?> line).

I don't get any return value from the DllStructCreate() call (to the $dPixel variable)

The $pixel variable contains at this point 0x026D7A84.

I need help to proceed, and I don't fully understand the $Scan0 and $Stride usage. And how to convert pixel data to x and y coordinates for use in the loop (i and j).

My goal is to get the decimal value of each pixel into the array (exactly the same way as when using the PixelGetColor() method, see above)

hAlp :

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UEZ

Look in the help file for _GDIPlus_BitmapLockBits() example. There is an example how to read the color values of an image.

 

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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Xibalba

UEZ,

I've of course looked at that example. I've tried again and again to recode that (and other examples in the forum) to work in my script.

Every time I'm reaching a dead end.

I need help to get my specific code to work (which by the way has a few fundamental differences to the example).

Br

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UEZ

This will display the color values as decimal numbers. It is the modified code from the help file:

#include <Array.au3>
#include <Constants.au3>
#include <GUIConstantsEx.au3>
#include <GDIPlus.au3>

Example()

Func Example()
    ; X64 running support
    Local $sWow64 = ""
    If @AutoItX64 Then $sWow64 = "\Wow6432Node"

    ;get AutoIt install dir
    Local $sRegPath = "HKLM\SOFTWARE" & $sWow64 & "\AutoIt v3\AutoIt"

    Local $sFile = RegRead($sRegPath, "InstallDir") & "\Examples\GUI\logo4.gif"
    If Not FileExists($sFile) Then
        MsgBox(BitOR($MB_SYSTEMMODAL, $MB_ICONHAND), "", $sFile & " not found!", 30)
        Return False
    EndIf

    _GDIPlus_Startup()
    Local $hImage = _GDIPlus_ImageLoadFromFile($sFile) ;create an image object based on a file
    If @error Then
        _GDIPlus_Shutdown()
        MsgBox(BitOR($MB_SYSTEMMODAL, $MB_ICONHAND), "", "An error has occured - unable to load image!", 30)
        Return False
    EndIf

    Local $iW = _GDIPlus_ImageGetWidth($hImage), $iH = _GDIPlus_ImageGetHeight($hImage) ;get width and height of the image
    Local $hBitmap = _GDIPlus_BitmapCreateFromScan0($iW, $iH)
    Local $hContext = _GDIPlus_ImageGetGraphicsContext($hBitmap)
    _GDIPlus_GraphicsDrawImageRect($hContext, $hImage, 0, 0, $iW, $iH)

    Local $tBitmapData = _GDIPlus_BitmapLockBits($hBitmap, 0, 0, $iW, $iH, BitOR($GDIP_ILMWRITE, $GDIP_ILMREAD), $GDIP_PXF32ARGB) ;locks a portion of a bitmap for reading and writing. More infor at http://msdn.microsoft.com/en-us/library/windows/desktop/ms536298(v=vs.85).aspx
    Local $iScan0 = DllStructGetData($tBitmapData, "Scan0") ;get scan0 (pixel data) from locked bitmap
    Local $iSearchPixel = Int(0xFF000080), $iReplaceColor = 0x00000000 ;color format 0xAARRGGBB
    Local $tPixel = DllStructCreate("int[" & $iW * $iH & "];", $iScan0)
    Local $iRowOffset, $array[$iH][$iW]

    For $iY = 0 To $iH - 1
        $iRowOffset = $iY * $iW + 1
        For $iX = 0 To $iW - 1 ;get each pixel in each line and row
            $array[$iY][$iX] = DllStructGetData($tPixel, 1, $iRowOffset + $iX) ;get pixel color
        Next
    Next
    _GDIPlus_BitmapUnlockBits($hBitmap, $tBitmapData) ;unlocks a portion of a bitmap that was locked by _GDIPlus_BitmapLockBits
    
    _ArrayDisplay($array)

    ;cleanup resources
    _GDIPlus_ImageDispose($hImage)
    _GDIPlus_GraphicsDispose($hContext)
    _GDIPlus_BitmapDispose($hBitmap)
    _GDIPlus_Shutdown()
EndFunc   ;==>Example

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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Xibalba

UEZ,

I've tried again with your modified code.

I had to change this:

Local $BitmapData = _GDIPlus_BitmapLockBits($pBitmap, 0, 0, $iWidth, $iHeight, $GDIP_ILMREAD, $GDIP_PXF32RGB)

To this:

Local $tBitmapData = _GDIPlus_BitmapLockBits($hBitmap, 0, 0, $iW, $iH, BitOR($GDIP_ILMWRITE, $GDIP_ILMREAD), $GDIP_PXF32ARGB)

Else it would crash with exception.

However, with ARGB I do get values, but they are all negative - how to fix that in the fastest way?

If possible I'd like to use 32RGB because it (should?) be slightly faster.

Thanks so far =)

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UEZ

Use Hex instead.

$array[$iY][$iX] = "0x" & Hex(DllStructGetData($tPixel, 1, $iRowOffset + $iX)) ;get pixel color

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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Xibalba

Ok so I went on and ended up with this code:

WinActivate($Handle)
Local $hBMP = _ScreenCapture_CaptureWnd("", $Handle) ; _ScreenCapture_CaptureWnd returns a handle to an HBITMAP if $sFileName is empty
Local $pBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hBMP)

Local $iWidth = 150
Local $iHeight = 300
Local $array[$iHeight][$iWidth]

Local $BitmapData = _GDIPlus_BitmapLockBits($pBitmap, 0, 0, $iWidth, $iHeight, BitOR($GDIP_ILMWRITE, $GDIP_ILMREAD), $GDIP_PXF32ARGB)

Local $Scan0 = DllStructGetData($BitmapData, "Scan0")
Local $tPixel = DllStructCreate("int[" & $iWidth * $iHeight & "];", $Scan0)
Local $iRowOffset

For $iY = 0 To $iHeight - 1
    $iRowOffset = $iY * $iWidth + 1
    For $iX = 0 To $iWidth - 1 ;get each pixel in each line and row
        $array[$iY][$iX] = DllStructGetData($tPixel, 1, $iRowOffset + $iX) ;get pixel color
        $array[$iY][$iX] = Abs($array[$iY][$iX])
    Next
Next

_GDIPlus_BitmapUnlockBits($pBitmap, $BitmapData)

; Clean up resources

_GDIPlus_BitmapDispose($pBitmap)
_WinAPI_DeleteObject($hBMP)
_GDIPlus_Shutdown()

_ArrayDisplay($array)

But now I'm getting strange results.

For example, I get the value 1 at [1][1] to [299][1], the value 2830136 at [0][0] etc.

I got no idea where those colors come from, they certainly aren't at the top-left on my handle at least. Perhaps X and Y is mixed up somehow? I played around changing those some but got even more unexpected values. And even so, what kind of value is 1? - to my knowledge, black=0 and white=16777215 in AutoIt?

As said earlier, perhaps its easier to use 32RGB instead of 32ARGB - but how do I do that without crashing the script?

Edit: sfdsdfsdasdafsdf How do I mark my code as AutoIt code (colors) and not just general code (no colors)?

Edited by Xibalba

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UEZ

What you are doing with Abs($array[$iY][$iX]) makes no sense because you are change the color values!

What is the problem to have hex color values?

It is much easier to see what color values you have when it is encoded in hex.

 

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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trancexx

Based on your code it would probably be something like this:

Local $aArray[$iHeight][$iWidth]
Local $tBitmapData = _GDIPlus_BitmapLockBits($pBitmap, 0, 0, $iWidth, $iHeight, BitOR($GDIP_ILMWRITE, $GDIP_ILMREAD), $GDIP_PXF32ARGB)
Local $tPixel = DllStructCreate("dword[" & $iWidth * $iHeight & "];", DllStructGetData($tBitmapData, "Scan0"))
For $iX = 0 To $iWidth - 1
    For $iY = 0 To $iHeight - 1
        $aArray[$iY][$iX] = BitAND(DllStructGetData($tPixel, 1, $iY * $iWidth + $iX + 1), 0xFFFFFF)
    Next
Next
_GDIPlus_BitmapUnlockBits($pBitmap, $tBitmapData)
edit: cleaned a bit Edited by trancexx

♡♡♡

.

eMyvnE

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Xibalba

trancexx, absolutely great, thanks! :thumbsup:

For a slight performance boost, consider this:

Local $BitmapData = _GDIPlus_BitmapLockBits($pBitmap, 0, 0, $iWidth, $iHeight, $GDIP_ILMREAD, $GDIP_PXF32RGB)

Notice! the last 2 parameters.

How would I go about defining my DLLStructCreate then? (Hex or decimal return values doesn't matter - I'm looking for the fastest!)

Local $tPixel = DllStructCreate("dword[" & $iWidth * $iHeight & "];", $Scan0)

The following code then breaks (in the loop):

$array[$iY][$iX] = DllStructGetData($tPixel, 1, $iY * $iWidth + $iX + 1)

Probably this happens because I'm trying to get data from a place that doesn't exist(?).

I still can't completely picture the data in my head - how does the $tPixel "look" after it's DllStructCreate? -  Is it some sort of array? _ArrayDisplay() or something equivalent would make it much easier understand those data types.

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trancexx

Sorry, but can you provide the name of the application you are using? What is your endgame or is it a secret?
LOL, I'm kidding. Pay no attention to those trolls in colors :).

$tPixel is array of integers representing pixel colors. That array isn't organized the way you would expect (the way picture looks), it's actually all backward because rendering engines expect it that way. It's following BMP format specification. That's why I used:

$iY * $iWidth + $iX + 1

...to get right pixel from the array at coordinates you expect them to be. If you would fill your array reading it flat (from the struct) then you would see your picture flipped and rotated. You could even do that and get correct data but before locking bitmap you would have to flip-rotate it (_GDIPlus_ImageRotateFlip).


♡♡♡

.

eMyvnE

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$aGUIStartPos[0]) + 1 $__g_iH = Abs($aMPos[1] - $aGUIStartPos[1]) + 1 If $aMPos[0] < $aGUIStartPos[0] Then $iX = $aMPos[0] Else $iX = $aGUIStartPos[0] EndIf If $aMPos[1] < $aGUIStartPos[1] Then $iY = $aMPos[1] Else $iY = $aGUIStartPos[1] EndIf WinMove($__g_hGUI_MarkArea, "", $iX, $iY, $__g_iW, $__g_iH) UpdateCtrlPos($bAnim) WEnd $__g_bSelectionDone = True GUISetCursor(3, 1, $__g_hGUI_MarkArea) ElseIf $aCI[3] And $__g_bSelectionDone Then $aGUIStartPos = WinGetPos($__g_hGUI_MarkArea) If _WinAPI_PtInRectEx(MouseGetPos(0), MouseGetPos(1), $aGUIStartPos[0], $aGUIStartPos[1], $aGUIStartPos[0] + $aGUIStartPos[2], $aGUIStartPos[1] + $aGUIStartPos[3]) Then $aMPos = MouseGetPos() $aGUIStartPos = WinGetPos($__g_hGUI_MarkArea) While $aCI[3] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) WinMove($__g_hGUI_MarkArea, "", $aGUIStartPos[0] - ($aMPos[0] - MouseGetPos(0)), $aGUIStartPos[1] - ($aMPos[1] - MouseGetPos(1)), $__g_iW, $__g_iH) GUISetCursor(0, 1, $__g_hGUI_Bg) GUISetCursor(0, 1, $__g_hGUI_MarkArea) WEnd GUISetCursor(3, 1, $__g_hGUI_Bg) GUISetCursor(3, 1, $__g_hGUI_MarkArea) EndIf EndIf If $__g_bSelectionDone Then $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) If @error Then ContinueLoop Switch $aCI[4] Case $__g_iLabel_TL GUISetCursor(12, 1, $__g_hGUI_MarkArea) If $aCI[2] Then $aOldWinPos = WinGetPos($__g_hGUI_MarkArea) $aOldMPos = MouseGetPos() While $aCI[2] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) WinMove($__g_hGUI_MarkArea, "", MouseGetPos(0), MouseGetPos(1), $aOldWinPos[2] + ($aOldMPos[0] - MouseGetPos(0)), $aOldWinPos[3] + ($aOldMPos[1] - MouseGetPos(1))) WEnd UpdateCtrlPos($bAnim) EndIf Case $__g_iLabel_BR GUISetCursor(12, 1, $__g_hGUI_MarkArea) If $aCI[2] Then $aOldWinPos = WinGetPos($__g_hGUI_MarkArea) $aOldMPos = MouseGetPos() While $aCI[2] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) WinMove($__g_hGUI_MarkArea, "", $aOldWinPos[0], $aOldWinPos[1], $aOldWinPos[2] - ($aOldMPos[0] - MouseGetPos(0)), $aOldWinPos[3] - ($aOldMPos[1] - MouseGetPos(1))) WEnd UpdateCtrlPos($bAnim) EndIf Case $__g_iLabel_TR GUISetCursor(10, 1, $__g_hGUI_MarkArea) If $aCI[2] Then $aOldWinPos = WinGetPos($__g_hGUI_MarkArea) $aOldMPos = MouseGetPos() While $aCI[2] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) WinMove($__g_hGUI_MarkArea, "", $aOldWinPos[0], MouseGetPos(1), $aOldWinPos[2] - ($aOldMPos[0] - MouseGetPos(0)), $aOldWinPos[3] + ($aOldMPos[1] - MouseGetPos(1))) WEnd UpdateCtrlPos($bAnim) EndIf Case $__g_iLabel_BL GUISetCursor(10, 1, $__g_hGUI_MarkArea) If $aCI[2] Then $aOldWinPos = WinGetPos($__g_hGUI_MarkArea) $aOldMPos = MouseGetPos() While $aCI[2] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) WinMove($__g_hGUI_MarkArea, "", MouseGetPos(0), $aOldWinPos[1], $aOldWinPos[2] + ($aOldMPos[0] - MouseGetPos(0)), $aOldWinPos[3] - ($aOldMPos[1] - MouseGetPos(1))) WEnd UpdateCtrlPos($bAnim) EndIf Case $__g_iLabel_LM GUISetCursor(13, 1, $__g_hGUI_MarkArea) If $aCI[2] Then $aOldWinPos = WinGetPos($__g_hGUI_MarkArea) $aOldMPos = MouseGetPos() While $aCI[2] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) WinMove($__g_hGUI_MarkArea, "", MouseGetPos(0), $aOldWinPos[1], $aOldWinPos[2] + ($aOldMPos[0] - MouseGetPos(0)), $aOldWinPos[3]) WEnd UpdateCtrlPos($bAnim) EndIf Case $__g_iLabel_RM GUISetCursor(13, 1, $__g_hGUI_MarkArea) If $aCI[2] Then $aOldWinPos = WinGetPos($__g_hGUI_MarkArea) $aOldMPos = MouseGetPos() While $aCI[2] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) WinMove($__g_hGUI_MarkArea, "", $aOldWinPos[0], $aOldWinPos[1], $aOldWinPos[2] - ($aOldMPos[0] - MouseGetPos(0)), $aOldWinPos[3]) WEnd UpdateCtrlPos($bAnim) EndIf Case $__g_iLabel_TM GUISetCursor(11, 1, $__g_hGUI_MarkArea) If $aCI[2] Then $aOldWinPos = WinGetPos($__g_hGUI_MarkArea) $aOldMPos = MouseGetPos() While $aCI[2] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) WinMove($__g_hGUI_MarkArea, "", $aOldWinPos[0], MouseGetPos(1), $aOldWinPos[2], $aOldWinPos[3] + ($aOldMPos[1] - MouseGetPos(1))) WEnd UpdateCtrlPos($bAnim) EndIf Case $__g_iLabel_BM GUISetCursor(11, 1, $__g_hGUI_MarkArea) If $aCI[2] Then $aOldWinPos = WinGetPos($__g_hGUI_MarkArea) $aOldMPos = MouseGetPos() While $aCI[2] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) WinMove($__g_hGUI_MarkArea, "", $aOldWinPos[0], $aOldWinPos[1], $aOldWinPos[2], $aOldWinPos[3] - ($aOldMPos[1] - MouseGetPos(1))) WEnd UpdateCtrlPos($bAnim) EndIf Case Else GUISetCursor(3, 1, $__g_hGUI_MarkArea) EndSwitch EndIf Until False EndFunc ;==>_GDIPlus_MarkScreenRegionAnimated Func UpdateCtrlPos($bAnim = True) Local Const $aGUIStartPos = WinGetPos($__g_hGUI_MarkArea) If $__g_bSelectionDone And $bAnim Then GUIRegisterMsg($WM_TIMER, "") $__g_iW = $aGUIStartPos[2] $__g_iH = $aGUIStartPos[3] ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_TL, 0, 0, $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_TM, ($__g_iW - $__g_iBorder) / 2, 0, $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_TR, ($__g_iW - $__g_iBorder - $__g_iBorder / 2), 0, $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_LM, 0, ($__g_iH - $__g_iBorder) / 2, $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_RM, ($__g_iW - $__g_iBorder - $__g_iBorder / 2), ($__g_iH - $__g_iBorder) / 2, $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_BL, 0, ($__g_iH - $__g_iBorder - $__g_iBorder / 2), $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_BM, ($__g_iW - $__g_iBorder) / 2, ($__g_iH - $__g_iBorder - $__g_iBorder / 2), $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_BR, ($__g_iW - $__g_iBorder - $__g_iBorder / 2), ($__g_iH - $__g_iBorder - $__g_iBorder / 2), $__g_iBorder, $__g_iBorder) If $__g_bSelectionDone And $bAnim Then GUIRegisterMsg($WM_TIMER, "PlayBorderAnim") EndFunc ;==>UpdateCtrlPos Func PlayBorderAnim() Local $aWinPos = WinGetClientSize($__g_hGUI_MarkArea), $iW = $aWinPos[0], $iH = $aWinPos[1] Local Static $fOffset = 0 Local Const $iSize = $__g_iBorder / 2 Local Const $hDC = _WinAPI_GetDC($__g_hGUI_MarkArea) Local Const $hHBitmap = _WinAPI_CreateCompatibleBitmap($hDC, $iW, $iH) Local Const $hDC_backbuffer = _WinAPI_CreateCompatibleDC($hDC) Local Const $DC_obj = _WinAPI_SelectObject($hDC_backbuffer, $hHBitmap) Local Const $hCanvas = _GDIPlus_GraphicsCreateFromHDC($hDC_backbuffer) Local Const $hPen = _GDIPlus_PenCreate(0xFF0178D7, $iSize), $hPen2 = _GDIPlus_PenCreate(0xFFFFFFFF, $iSize), _ $hBrush = _GDIPlus_BrushCreateSolid(0xFF000000 + $__g_iColor_ResizeDots), $hPen3 = _GDIPlus_PenCreate(0xFF000000) _GDIPlus_PenSetDashStyle($hPen, $GDIP_DASHSTYLEDASHDOT) _GDIPlus_GraphicsClear($hCanvas, 0xFFABCDEF) ;for faster performance direct dll calls DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen2, "float", 1 + $iSize, "float", 1 + $iSize, "float", $iW - 2 * $iSize - 2, "float", $iH - 2 * $iSize - 2) DllCall($__g_hGDIPDll, "int", "GdipSetPenDashOffset", "handle", $hPen, "float", $fOffset) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen, "float", 1 + $iSize, "float", 1 + $iSize, "float", $iW - 2 * $iSize - 2, "float", $iH - 2 * $iSize - 2) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", 0, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", 0, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", ($iW - $__g_iBorder) / 2, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", ($iW - $__g_iBorder) / 2, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", ($iW - $__g_iBorder) - 2, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", ($iW - $__g_iBorder) - 2, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", 0, "float", ($iH - $__g_iBorder) / 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", 0, "float", ($iH - $__g_iBorder) / 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", ($iW - $__g_iBorder) - 2, "float", ($iH - $__g_iBorder) / 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", ($iW - $__g_iBorder) - 2, "float", ($iH - $__g_iBorder) / 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", 0, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", 0, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", ($iW - $__g_iBorder) / 2, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", ($iW - $__g_iBorder) / 2, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", ($iW - $__g_iBorder) - 2, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", ($iW - $__g_iBorder) - 2, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) _WinAPI_BitBlt($hDC, 0, 0, $iW, $iH, $hDC_backbuffer, 0, 0, $SRCCOPY) $fOffset += 0.5 _GDIPlus_GraphicsDispose($hCanvas) _WinAPI_SelectObject($hDC_backbuffer, $DC_obj) _WinAPI_DeleteDC($hDC_backbuffer) _WinAPI_DeleteObject($hHBitmap) _WinAPI_ReleaseDC($__g_hGUI_MarkArea, $hDC) _GDIPlus_PenDispose($hPen) _GDIPlus_PenDispose($hPen2) _GDIPlus_PenDispose($hPen3) _GDIPlus_BrushDispose($hBrush) EndFunc ;==>PlayBorderAnim Func WM_ERASEBKGND($hWnd, $iMsgm, $wParam, $lParam) ;suppress repainting to avoid flickering but causes some other side effects #forceref $iMsgm, $wParam, $lParam, $hWnd Local Const $hBrush = _WinAPI_CreateSolidBrush(0xEFCDAB) ;BGR format ;~ _WinAPI_RedrawWindow($__g_hGUI_MarkArea, 0, 0, BitOR($RDW_NOERASE, $RDW_NOCHILDREN, $RDW_NOFRAME, $RDW_VALIDATE)) _WinAPI_SetClassLongEx($__g_hGUI_MarkArea, $GCL_HBRBACKGROUND, $hBrush) _WinAPI_DeleteObject($hBrush) Return 0 EndFunc ;==>WM_ERASEBKGND  
      Just press the lmb and move your mouse. When lmb is released you can adjust the size of the window by dragging the white rectangle to any direction. Rmb will move the marked area.
      Press ESC to get the coordinates of the marked region.
      If you have any improvements, please post it here.
       
      Tested on Win10 x64 only.
       
    • badcoder123
      By badcoder123
      Hey, All!
       
      I was looking into the help file at all the drawing utilities and I was wondering if you draw a translucent line that follows your cursor. Upon looking for ideas I came across this thread (1.0) and saw UEZ's response. I also came across another post that UEZ replied to and found this reply (1.1) where he shows how you can draw on the desktop. This is what I'm looking for however I'd still like to be able to interact with a designated application and have the line/curve/vector passively follow it. Obviously we don't move our cursor very linearly so it would have to be able to draw on vectors. Am I over complicating this? 
      Any ideas or starting points I should look more into? 
       
       
       
      1.0
      #include <GUIConstantsEx.au3> #include <WindowsConstants.au3> Global Const $aFullScreen = WinGetPos(WinGetHandle("[TITLE:Program Manager;CLASS:Progman]")) Global $iHeight = 4 Global Const $hGUI = GUICreate("Screen Ruler Underline for free :-)", $aFullScreen[2], $iHeight, $aFullScreen[0], MouseGetPos(1), $WS_POPUP, BitOR($WS_EX_TOPMOST, $WS_EX_TRANSPARENT)) GUISetBkColor(0x000000) WinSetTrans($hGUI, "", 0xA0) GUISetState() HotKeySet("{ESC}", "_Exit") Do WinMove($hGUI, "", $aFullScreen[0], MouseGetPos(1)) Until Not Sleep(50) Func _Exit() GUIDelete() Exit EndFunc _____________
      1.1
      #include <GUIConstantsEx.au3> #include <WindowsConstants.au3> #include <WinAPI.au3> AutoItSetOption("GUIOnEventMode", 1) Global $hGUI, $hDC, $hPen, $obj_orig $hGUI = GUICreate("", @DesktopWidth, @DesktopHeight, 0, 0, $WS_POPUP) WinSetTrans($hGUI, "", 1) GUISetState() _line() Func _line() $hDC = _WinAPI_GetWindowDC(0) ; DC of entire screen (desktop) $hPen = _WinAPI_CreatePen($PS_SOLID, 2, 0x00ff) $obj_orig = _WinAPI_SelectObject($hDC, $hPen) GUISetOnEvent($GUI_EVENT_PRIMARYDOWN, "Draw", $hGUI) GUISetOnEvent(-3, "_Exit") Do Until Not Sleep(1000) EndFunc ;==>_line Func Draw() Local $aMC, $mxo, $myo $aMC = GUIGetCursorInfo($hGUI) Do GUISetCursor(0, 1, 0) $mxo = $aMC[0] $myo = $aMC[1] $aMC = GUIGetCursorInfo($hGUI) If $mxo <> $aMC[0] Or $myo <> $aMC[1] Then _WinAPI_DrawLine($hDC, $aMC[0], $aMC[1], $mxo, $myo) _WinAPI_RedrawWindow(_WinAPI_GetDesktopWindow(), 0, 0, $RDW_INVALIDATE) $mxo = $aMC[0] $myo = $aMC[1] EndIf Sleep(10) Until Not $aMC[2] EndFunc Func _Exit() _WinAPI_SelectObject($hDC, $obj_orig) _WinAPI_DeleteObject($hPen) _WinAPI_ReleaseDC(0, $hDC) Exit EndFunc  
    • Pricehacker
      By Pricehacker
      Hello,
      I am making a program where the button is an image that "changes" when specific conditions are fullfilled. Problem is that these images have different dimensions and when a smaller picture is displayed over a bigger one both will be seen, therefore i would like the images to be hidden, invincible or, alternatively, deleted.
      I have tried using _GDIPlus_GraphicsClear() with no luck
      However that might just be me not using it right as im quite new to autoit
      Here is the code if you want to test run it:
      Thanks to everyone helping!
    • Pricehacker
      By Pricehacker
      Hello Autoit!
      Today i discovered that pixelgetcolor doesn't adapt to the DPI of the system, and i want to fix this somehow as my laptop uses 120 DPI.
      This is what i have came up with so far:
      AutoItSetOption ( "CaretCoordMode" , 0) AutoItSetOption ( "MouseCoordMode" , 0) AutoItSetOption ( "PixelCoordMode" , 0) AutoItSetOption ( "GUICoordMode" , 0) #include <MsgBoxConstants.au3> #include <Misc.au3> #include <WinAPIGdi.au3> ; enum _PROCESS_DPI_AWARENESS Global Const $PROCESS_DPI_UNAWARE = 0 Global Const $PROCESS_SYSTEM_DPI_AWARE = 1 Global Const $PROCESS_PER_MONITOR_DPI_AWARE = 2 ; enum _MONITOR_DPI_TYPE Global Const $MDT_EFFECTIVE_DPI = 0 Global Const $MDT_ANGULAR_DPI = 1 Global Const $MDT_RAW_DPI = 2 Global Const $MDT_DEFAULT = $MDT_EFFECTIVE_DPI HotKeySet('{ESC}','Terminate') Func Terminate() Exit EndFunc $iPD = 1 while 1 $aPos = WinGetPos("[ACTIVE]") ToolTip (PixelGetColor( MouseGetPos()[0]*(96/_DPI(0)), MouseGetPos()[1]*(96/_DPI(1))) & ', ' & MouseGetPos()[0] & ', ' & MouseGetPos()[1] ) if $iPD = 1 and Not _IsPressed(22) Then $iPD = 0 Sleep(100) EndIf if $iPD = 0 And _IsPressed(22) Then ;Page down is pressed ClipPut( 'PixelGetColor($aPos[2]' & '*' & MouseGetPos(0)/$aPos[2] & ',' & '$aPos[3]' & '*' & MouseGetPos(1)/$aPos[3] & ')' & '=' & PixelGetColor( MouseGetPos()[0], MouseGetPos()[1])) $iPD = 1 EndIf WEnd ;Functions Func _DPI($iCordinate) ;0 for x and 1 for y _WinAPI_SetProcessDpiAwareness($PROCESS_SYSTEM_DPI_AWARE) $aMonitors = _WinAPI_EnumDisplayMonitors() $aDPI = _WinAPI_GetDpiForMonitor($aMonitors[1][0], $MDT_DEFAULT) Return $aDPI[$iCordinate] EndFunc Func _WinAPI_SetProcessDpiAwareness($DPIAware) DllCall("Shcore.dll", "long", "SetProcessDpiAwareness", "int", $DPIAware) If @error Then Return SetError(1, 0, 0) EndFunc Func _WinAPI_GetDpiForMonitor($hMonitor, $dpiType) Local $X, $Y $aRet = DllCall("Shcore.dll", "long", "GetDpiForMonitor", "long", $hMonitor, "int", $dpiType, "uint*", $X, "uint*", $Y) If @error Or Not IsArray($aRet) Then Return SetError(1, 0, 0) Local $aDPI[2] = [$aRet[3],$aRet[4]] Return $aDPI EndFunc  
      I'm pretty sure it has to do with me using the DPI in the wrong way as i dont really understand it (even after searching around on the internet for like an hour)
      It would really help if anyone could help me on the right track
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