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Problems comparing two (in memory) bitmaps using memcmp


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Hi, 

I'm trying to compare two bitmaps (screenshots of the desktop) that I create using BitBlt. The bitmaps can be successfully saved to disk, but when I run the two bitmaps through a CompareBitmaps()-function I found in this thread, which calls memcmp, the script crashes with "Exit code: -1073741819". 

This crash only happens when I try to compare bitmaps that I got by using BitBlt. If I use the CompareBitmaps()-function on bitmaps created by _GDIPlus_ImageLoadFromFile, everything works fine. (I'm using AutoIT 3.3.6.1)

I'll attach my script that crashes, and the  CompareBitmaps() example script that works (which I got from the thread previosly mentioned)

My script, that for some reason crashes : 

#include <ScreenCapture.au3>
#include <GDIPlus.au3>
#include <WinAPI.au3>

_GDIPlus_Startup()

Local $hDesktop = _WinAPI_GetDesktopWindow()
$clientS = WinGetClientSize($hDesktop)
Local $Width = $clientS[0]
Local $Height = $clientS[1]

Local $hDC = _WinAPI_GetDC($hDesktop)
Local $memDC = _WinAPI_CreateCompatibleDC($hDC)
Local $memBmp = _WinAPI_CreateCompatibleBitmap($hDC, $Width, $Height)
_WinAPI_SelectObject ($memDC, $memBmp)
_WinAPI_BitBlt($memDC, 0, 0, $Width, $Height, $hDC, 0,0, $__SCREENCAPTURECONSTANT_SRCCOPY)
_WinAPI_DeleteDC($memDC)
_WinAPI_ReleaseDC($hDesktop, $hDC)

Local $hImage1 = _GDIPlus_BitmapCreateFromHBITMAP($memBmp)
_WinAPI_DeleteObject($memBmp)

_GDIPlus_ImageSaveToFile($hImage1, @ScriptDir & "\GDIPlus_Image1.jpg")

MsgBox(0, "Debug", "Screenshot taken & saved to disk. Ready to take new screenshot" )

Local $hDC2 = _WinAPI_GetDC($hDesktop)
Local $memDC2 = _WinAPI_CreateCompatibleDC($hDC2)
Local $memBmp2 = _WinAPI_CreateCompatibleBitmap($hDC2, $Width, $Height)
_WinAPI_SelectObject ($memDC2, $memBmp2)
_WinAPI_BitBlt($memDC2, 0, 0, $Width, $Height, $hDC2, 0,0, $__SCREENCAPTURECONSTANT_SRCCOPY)
_WinAPI_DeleteDC($memDC2)
_WinAPI_ReleaseDC($hDesktop, $hDC2)

Local $hImage2 =_GDIPlus_BitmapCreateFromHBITMAP($memBmp2)
_WinAPI_DeleteObject($memBmp2)

_GDIPlus_ImageSaveToFile($hImage2, @ScriptDir & "\GDIPlus_Image2.jpg")

MsgBox(0, "Debug", "Screenshot2 taken & saved to disk. Ready to compare images (from memory)" )

MsgBox(0, "bm1==bm2", CompareBitmaps($hImage1, $hImage2) )

; Clean up resources
_GDIPlus_ImageDispose($hImage1)
_GDIPlus_ImageDispose($hImage2)

; Shut down GDI+ library
_GDIPlus_ShutDown ()

Func CompareBitmaps($bm1, $bm2)

    $Bm1W = _GDIPlus_ImageGetWidth($bm1)
    $Bm1H = _GDIPlus_ImageGetHeight($bm1)

    $BitmapData1 = _GDIPlus_BitmapLockBits($bm1, 0, 0, $Bm1W, $Bm1H, $GDIP_ILMREAD, $GDIP_PXF32RGB)
    $Stride = DllStructGetData($BitmapData1, "Stride")
    $Scan0 = DllStructGetData($BitmapData1, "Scan0")

    $ptr1 = $Scan0
    $size1 = ($Bm1H - 1) * $Stride + ($Bm1W - 1) * 4
    $Bm2W = _GDIPlus_ImageGetWidth($bm2)
    $Bm2H = _GDIPlus_ImageGetHeight($bm2)
    $BitmapData2 = _GDIPlus_BitmapLockBits($bm2, 0, 0, $Bm2W, $Bm2H, $GDIP_ILMREAD, $GDIP_PXF32RGB)
    $Stride = DllStructGetData($BitmapData2, "Stride")
    $Scan0 = DllStructGetData($BitmapData2, "Scan0")
    $ptr2 = $Scan0
    $size2 = ($Bm2H - 1) * $Stride + ($Bm2W - 1) * 4

    $smallest = $size1
    If $size2 < $smallest Then $smallest = $size2
    $call = DllCall("msvcrt.dll", "int:cdecl", "memcmp", "ptr", $ptr1, "ptr", $ptr2, "int", $smallest)

    _GDIPlus_BitmapUnlockBits($bm1, $BitmapData1)
    _GDIPlus_BitmapUnlockBits($bm2, $BitmapData2)
    Return ($call[0]=0)
EndFunc  ;==>CompareBitmaps

 

Example Script (that basically does the same thing, but works fine)

#include <GDIPlus.au3>

_GDIPlus_Startup()
$fname1=FileOpenDialog("First image","","All images(*.bmp;*.jpg;*.png;)")
If $fname1="" Then Exit
$fname2=FileOpenDialog("Second image image","","All images(*.bmp;*.jpg;*.png;)")
If $fname2="" Then Exit
$bm1 = _GDIPlus_ImageLoadFromFile($fname1)
$bm2 = _GDIPlus_ImageLoadFromFile($fname2)

MsgBox(0, "bm1==bm2", CompareBitmaps($bm1, $bm2))
_GDIPlus_ImageDispose($bm1)
_GDIPlus_ImageDispose($bm2)
_GDIPlus_Shutdown()

Func CompareBitmaps($bm1, $bm2)

    $Bm1W = _GDIPlus_ImageGetWidth($bm1)
    $Bm1H = _GDIPlus_ImageGetHeight($bm1)
    $BitmapData1 = _GDIPlus_BitmapLockBits($bm1, 0, 0, $Bm1W, $Bm1H, $GDIP_ILMREAD, $GDIP_PXF32RGB)
    $Stride = DllStructGetData($BitmapData1, "Stride")
    $Scan0 = DllStructGetData($BitmapData1, "Scan0")

    $ptr1 = $Scan0
    $size1 = ($Bm1H - 1) * $Stride + ($Bm1W - 1) * 4


    $Bm2W = _GDIPlus_ImageGetWidth($bm2)
    $Bm2H = _GDIPlus_ImageGetHeight($bm2)
    $BitmapData2 = _GDIPlus_BitmapLockBits($bm2, 0, 0, $Bm2W, $Bm2H, $GDIP_ILMREAD, $GDIP_PXF32RGB)
    $Stride = DllStructGetData($BitmapData2, "Stride")
    $Scan0 = DllStructGetData($BitmapData2, "Scan0")

    $ptr2 = $Scan0
    $size2 = ($Bm2H - 1) * $Stride + ($Bm2W - 1) * 4

    $smallest = $size1
    If $size2 < $smallest Then $smallest = $size2
    $call = DllCall("msvcrt.dll", "int:cdecl", "memcmp", "ptr", $ptr1, "ptr", $ptr2, "int", $smallest)



    _GDIPlus_BitmapUnlockBits($bm1, $BitmapData1)
    _GDIPlus_BitmapUnlockBits($bm2, $BitmapData2)

    Return ($call[0]=0)


EndFunc  ;==>CompareBitmaps

 

Any one got a clue why my script crashes? 

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Trying a little bump. 

I still haven't figured out why the second script works fine and the first doesn't.

They both call 

DllCall("msvcrt.dll", "int:cdecl", "memcmp", "ptr", $ptr1, "ptr", $ptr2, "int", $smallest)

The main difference is that the second script get the bitmap-handles from

$bm1 = _GDIPlus_ImageLoadFromFile($fname1)

while the first (which crashes) acquires the bitmap-handles using BitBlt and these lines:

Local $hDC = _WinAPI_GetDC($hDesktop)
Local $memDC = _WinAPI_CreateCompatibleDC($hDC)
Local $memBmp = _WinAPI_CreateCompatibleBitmap($hDC, $Width, $Height)
_WinAPI_SelectObject ($memDC, $memBmp)
_WinAPI_BitBlt($memDC, 0, 0, $Width, $Height, $hDC, 0,0, $__SCREENCAPTURECONSTANT_SRCCOPY)
_WinAPI_DeleteDC($memDC)
_WinAPI_ReleaseDC($hDesktop, $hDC)

Local $hImage1 = _GDIPlus_BitmapCreateFromHBITMAP($memBmp)

Anyone who can point me in the right direction on how to solve this problem? 

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Yeah, I agree it must be crashing because of some type mismatch.

However, shouldn't 

_GDIPlus_BitmapCreateFromHBITMAP($memBmp)

and 

_GDIPlus_ImageLoadFromFile($fname1)

both return a handle to a bitmap object ?

It seems so by the docs. What am I missing?

https://www.autoitscript.com/autoit3/docs/libfunctions/_GDIPlus_BitmapCreateFromHBITMAP.htm

https://www.autoitscript.com/autoit3/docs/libfunctions/_GDIPlus_ImageLoadFromFile.htm

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As doc states one returns a bitmap object and the other an image object. So not both returning bitmap object as you state.

Bitmap class inherits from image I think. Maybe this function can convert.

https://msdn.microsoft.com/en-us/library/dd183485(VS.85).aspx

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Its a while ago but maybe this one helps

https://www.autoitscript.com/autoit3/docs/libfunctions/_GDIPlus_BitmapCreateFromMemory.htm

and long ago I made this one

 

in that reference you see

If $BMPFile="SCREEN" Then
        $hbScreen=_ScreenCapture_Capture("",0,0,-1,-1,False)
        $pBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hbScreen); returns memory bitmap
    Else
;try to get a handle
        $handle = WinGetHandle($BMPFile)
        If @error Then
;Assume its an unknown handle so correct filename should be given
            $pBitmap = _GDIPlus_BitmapCreateFromFile($BMPFile)
        Else
            $hbScreen=_ScreenCapture_CaptureWnd("",$handle,0,0,-1,-1,False)
            $pBitmap = _GDIPlus_BitmapCreateFromHBITMAP($hbScreen); returns memory bitmap
        EndIf
    EndIf

 

Edited by junkew
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Try this function instead:

Func _GDIPlus_ImageCompare($hImage1, $hImage2, $bFastCmp = True)
    Local Const $iW = _GDIPlus_ImageGetWidth($hImage1), $iH = _GDIPlus_ImageGetHeight($hImage1)
    If ($iW <> _GDIPlus_ImageGetWidth($hImage2)) Then Return SetError(1, 0, 0)
    If ($iH <> _GDIPlus_ImageGetHeight($hImage2)) Then Return SetError(2, 0, 0)
    Local $t = TimerInit()
    Local $tBitmapData1 = _GDIPlus_BitmapLockBits($hImage1, 0, 0, $iW, $iH, $GDIP_ILMREAD, $GDIP_PXF32ARGB)
    Local $tBitmapData2 = _GDIPlus_BitmapLockBits($hImage2, 0, 0, $iW, $iH, $GDIP_ILMREAD, $GDIP_PXF32ARGB)

    Local $pScan1 = DllStructGetData($tBitmapData1, "Scan0")
    Local $tPixel1 = DllStructCreate("uint[" & $iW * $iH & "];", $pScan1)
    Local $iStride = Abs(DllStructGetData($tBitmapData1, "Stride"))

    Local $pScan2 = DllStructGetData($tBitmapData2, "Scan0")
    Local $tPixel2 = DllStructCreate("uint[" & $iW * $iH & "];", $pScan2)


    If $bFastCmp Then
        $iResult = DllCall("msvcrt.dll", "int:cdecl", "memcmp", "ptr", $pScan1, "ptr", $pScan2, "uint", DllStructGetSize($tPixel1))[0]
    Else
        If ($iW * $iH + 1) * 3 > 16 * 1024^2 Then Return SetError(3, 0, 0)
        Local $iX, $iY, $iRowOffset, $iPixel1, $iPixel2, $c = 1, $aDiff[$iW * $iH + 1][3]
        For $iY = 0 To $iH - 1
            $iRowOffset = $iY * $iW + 1
            For $iX = 0 To $iW - 1
                $iPixel1 = DllStructGetData($tPixel1, 1, $iRowOffset + $iX) ;get pixel color
                $iPixel2 = DllStructGetData($tPixel2, 1, $iRowOffset + $iX) ;get pixel color
                If $iPixel1 <> $iPixel2 Then
                    $aDiff[$c][0] = $iX & ", " & $iY
                    $aDiff[$c][1] = "0x" & Hex($iPixel1, 8)
                    $aDiff[$c][2] = "0x" & Hex($iPixel2, 8)
                    $c += 1
                EndIf
            Next
        Next
        $aDiff[0][0] = TimerDiff($t)
        $aDiff[0][1] = $iW
        $aDiff[0][2] = $iH
    EndIf

    _GDIPlus_BitmapUnlockBits($hImage1, $tBitmapData1)
    _GDIPlus_BitmapUnlockBits($hImage2, $tBitmapData2)

    If $bFastCmp Then Return SetError(0, Int(TimerDiff($t)), $iResult = 0)

    ReDim $aDiff[$c][3]
    Return $aDiff
EndFunc

 

Edited by UEZ

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

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Thanks for pointing out that one returns a bitmap object and the other an image object, @junkew. I'm not really sure what the difference between those two are, but I guess they are different GDI+ objects.

I tried replacing the compare function in my code with @UEZ's _GDIPlus_ImageCompare and it just worked. I didn't have to do any "bitmap-object to image-object"-juggling. Amazing stuff and lightning fast. Thank you so much.

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10, $aFullScreen[1] - 10, 1, 1), $aAccelKeys[1][2] = [["{ENTER}", $iKey_Exit]] GUISetAccelerators($aAccelKeys, $__g_hGUI_Bg) GUISetAccelerators($aAccelKeys, $__g_hGUI_MarkArea) #forceref $bMoved Do Switch GUIGetMsg() Case $GUI_EVENT_CLOSE, $iKey_Exit If $bAnim Then GUIRegisterMsg($WM_TIMER, "") DllCall("user32.dll", "bool", "KillTimer", "hwnd", $__g_hGUI_MarkArea, "uint_ptr", $iID) GUIRegisterMsg($WM_ERASEBKGND, "") EndIf _GDIPlus_Shutdown() Local $aResult = WinGetPos($__g_hGUI_MarkArea) $aResult[2] = WinGetClientSize($__g_hGUI_MarkArea)[0] $aResult[3] = WinGetClientSize($__g_hGUI_MarkArea)[1] GUIDelete($__g_hGUI_MarkArea) GUIDelete($__g_hGUI_Bg) If Not $__g_bSelectionDone Then $aResult = 0 Return $aResult EndSwitch $aMPos = MouseGetPos() If ($aMPos[0] <> $aPrevMPos[0] Or $aMPos[1] <> $aPrevMPos[1]) And (Not $__g_bSelectionDone) Then WinMove($__g_hGUI_MarkArea, "", $aMPos[0], $aMPos[1]) $aPrevMPos = $aMPos EndIf $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) If $aCI[2] And (Not $__g_bSelectionDone) Then $aGUIStartPos = WinGetPos($__g_hGUI_MarkArea) If $bAnim Then GUIRegisterMsg($WM_ERASEBKGND, "WM_ERASEBKGND") GUIRegisterMsg($WM_TIMER, "PlayBorderAnim") $iID = DllCall("User32.dll", "uint_ptr", "SetTimer", "hwnd", $__g_hGUI_MarkArea, "uint_ptr", 1, "uint", 50, "ptr", 0)[0] EndIf While $aCI[2] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) $aMPos = MouseGetPos() $__g_iW = Abs($aMPos[0] - $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 ;https://docs.microsoft.com/en-us/windows/desktop/api/winuser/nf-winuser-setprocessdpiawarenesscontext Func _WinAPI_SetProcessDpiAwarenessContext($DPIAwareContext = $Context_PerMonitorAware, $hGUI = 0, $iMode = 3) ;https://docs.microsoft.com/en-us/windows/desktop/api/winuser/nf-winuser-setprocessdpiawarenesscontext $DPIAwareContext = ($DPIAwareContext < -5) ? -5 : ($DPIAwareContext > -1) ? -1 : $DPIAwareContext $iMode = ($iMode < 1) ? 1 : ($iMode > 3) ? 3 : $iMode Switch $iMode Case 1 Local $hDC = _WinAPI_GetDC($hGUI) Local $aResult1 = DllCall("user32.dll", "ptr", "GetDpiFromDpiAwarenessContext", "ptr", $hDC) If @error Or Not IsArray($aResult1) Then Return SetError(11, 0, 0) _WinAPI_ReleaseDC(0, $hDC) Local $aResult = DllCall("user32.dll", "Bool", "SetProcessDpiAwarenessContext", "int", $aResult1[0] + $DPIAwareContext) If @error Or Not IsArray($aResult) Then Return SetError(12, 0, 0) Case 2 ;~ If Not $hGUI Then $hGUI = WinGetHandle(AutoItWinGetTitle()) Local $aResult2 = DllCall("user32.dll", "int", "GetWindowDpiAwarenessContext", "ptr", $hGUI) If @error Or Not IsArray($aResult2) Then Return SetError(21, 0, 0) Local $aResult = DllCall("user32.dll", "Bool", "SetProcessDpiAwarenessContext", "int", $aResult2[0] + $DPIAwareContext) If @error Or Not IsArray($aResult) Then Return SetError(22, 0, 0) Case 3 Local $aResult31 = DllCall("user32.dll", "ptr", "GetThreadDpiAwarenessContext") If @error Or Not IsArray($aResult31) Then Return SetError(31, 0, 0) Local $aResult32 = DllCall("user32.dll", "ptr", "GetAwarenessFromDpiAwarenessContext", "ptr", $aResult31[0]) If @error Or Not IsArray($aResult32) Then Return SetError(32, 0, 0) Local $aResult = DllCall("user32.dll", "Bool", "SetThreadDpiAwarenessContext", "int", $aResult32[0] + $DPIAwareContext) If @error Or Not IsArray($aResult) Then Return SetError(33, 0, 0) EndSwitch Return 1 EndFunc ;==>_WinAPI_SetProcessDpiAwarenessContext  
      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.
       
    • By ripdad
      This is a project that I have been working on for several months off and on.
      It's a simple "What You Hear" MP3 @ 320Kbps and WAV audio recorder.
      Features:
      - LoudMax, a Gain Controller and Look-Ahead Limiter
      - Auto Shut-Off after one minute of silence
      - Side-by-Side Simulated LED Meter
      - Running Time Counter
      It started off being a large project, but I eventually stripped it down to its
      bare essentials because I came to realize that it would be very difficult to
      deal with every sound card and every way a PC is set up for audio. It would
      have been a nightmare that I was not willing to go through.
      This project contains the most up-to-date BASS.dll v.2.4.15.0 - December 17, 2019.
      All BASS Dll's are 32bit. Those and the needed UDF's are included in the zip file.
      I will try to explain how it works in the next post.

      Download:
      BASS VST Recorder v1.1.zip
       
    • By ripdad
      I have been working on audio graphical scripts these last several months.
      This is my last script on this subject for now. On to other projects.
      Credits: UEZ, Eukalyptus, BrettF, Prog@ndy, Authenticity and the AutoIt Community.
      Thanks to all that made these scripts possible!
      Please let me know if you have any problems with it.

      Download:
      LIVE Stereo Audio Waveform v2.zip
       

    • By IndianSage
      Hi,
      My AutoIt script is as folllows:
      ;use for calling function add2NosA in dll ;Local $vNo1 = 33 ;Local $vNo2 = 11 ;use for calling function sortNos in dll Local $vNo1 = [11,7,9] Local $vNo2 = [1,3,2] ; _ArrayDisplay($vNo1, "vNo1 display") ; _ArrayDisplay($vNo2, "vNo2 display") ;Local $hWnd = DllOpen("E:\CV-Dell-1\autoit3\myComObj1.dll") Local $hWnd = ObjCreate("myComObj1.clsMath") if (@error) Then MsgBox (0, "Error", "Error1 = " & @error) Exit EndIf ;function call method - DllCall with function name ;Local $aRes = DllCall($hWnd, "int", "addNosA", "int", $vNo1, "int", $vNo2) ;Local $aRes = DllCall($hWnd, "Ptr", "sortNos", "Array", $vNo1, "Array", $vNo2) ;function call method - $hWnd.<function name> ;Local $aRes = $hWnd.add2NosA($vNo1, $vNo2) ; this works fine with ObjCreate Local $aRes = $hWnd.sortNos($vNo1, $vNo2) if (@error) Then MsgBox (0, "Error", "Error2 = " & @error) DllClose($hWnd) Exit EndIf ;use appropriate msgbox ;MsgBox(0,"Result", "Result = " & $vNo1[0]) MsgBox(0,"Result", "Result = " & $aRes) _ArrayDisplay($vNo1, "vNo1 display") _ArrayDisplay($aRes , "aRes display") DllClose($hWnd) My VB.Net - ClassLibrary - Dll - COM obj is as follows - has 2 functions - add2NosA and sortNos:
      <ComClass(clsMath.ClassId, clsMath.InterfaceId, clsMath.EventsId)> Public Class clsMath Public Const ClassId As String = "3A42F85E-24C8-4BAA-91B5-AE56C4683C13" Public Const InterfaceId As String = "D99D7C79-2BA7-4A33-B7BC-9B7F19FDF828" Public Const EventsId As String = "CA128AC4-580C-4112-9EAD-8D1599E3F37A" Public Sub New() MyBase.New() End Sub Public Function add2NosA(ByVal no1 As Integer, ByVal no2 As Integer) As Integer Return (no1 + no2) End Function Public Sub sortNos(ByRef no1 As Array, ByRef no2 As Array) Array.Sort(no1) no2 = no1 End Sub End Class  Over all I tried various 8 options mentioned in the attached Excel file - with only 1 combination working.
      Overall could not make Array returned capture in AutoIt script. 
      Can someone help please?
      Thanks in  advance.
      Options-Tried-Matrix-Results.xlsx
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