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joakim

NtCreateKey and DllCall

2 posts in this topic

#1 ·  Posted (edited)

I am trying to access registry keys by using ntdll.dll, but I'm facing a dreaded ntstatus 0xc0000005 (STATUS_ACCESS_VIOLATION). From the msdn docs; http://msdn.microsoft.com/en-us/library/windows/hardware/ff566425(v=vs.85).aspx it says the RootDirectory can be empty in which case the ObjectName member of the input ObjectAttributes contains the full qualified path, and should start with Registry. A bit stuck, so any help would be appreciated. Here the code;

Global Const $tagIOSTATUSBLOCK = "dword Status;ptr Information"
Global Const $tagOBJECTATTRIBUTES = "ulong Length;hwnd RootDirectory;ptr ObjectName;ulong Attributes;ptr SecurityDescriptor;ptr SecurityQualityOfService"
Global Const $tagUNICODESTRING = "ushort Length;ushort MaximumLength;ptr Buffer"
Global Const $OBJ_CASE_INSENSITIVE = 0x00000040
Global Const $KEY_READ = 0x20019
Global Const $KEY_WRITE = 0x20006
Global Const $KEY_CREATE_LINK = 0x0020
Global Const $KEY_ALL_ACCESS = 0xF003F
Global Const $REG_OPTION_NON_VOLATILE = 0x00000000

$RegKey = "RegistryMachineSOFTWAREClasses"
_NtCreateKey($RegKey)

Func _NtCreateKey($RegKey)
Local $Disposition, $ret, $KeyHandle
Local $hNTDLL = DllOpen("ntdll.dll")
Local $szName = DllStructCreate("wchar[260]")
Local $sUS = DllStructCreate($tagUNICODESTRING)
Local $sOA = DllStructCreate($tagOBJECTATTRIBUTES)
Local $sISB = DllStructCreate($tagIOSTATUSBLOCK)
DllStructSetData($szName, 1, $RegKey)
$ret = DllCall($hNTDLL, "none", "RtlInitUnicodeString", "ptr", DllStructGetPtr($sUS), "ptr", DllStructGetPtr($szName))
DllStructSetData($sOA, "Length", DllStructGetSize($sOA))
DllStructSetData($sOA, "RootDirectory", Chr(0))
DllStructSetData($sOA, "ObjectName", DllStructGetPtr($sUS))
DllStructSetData($sOA, "Attributes", $OBJ_CASE_INSENSITIVE)
DllStructSetData($sOA, "SecurityDescriptor", Chr(0))
DllStructSetData($sOA, "SecurityQualityOfService", Chr(0))
$ret = DllCall($hNTDLL, "int", "NtCreateKey", "hwnd", $KeyHandle, "dword", $KEY_ALL_ACCESS, "ptr", DllStructGetPtr($sOA), "ulong", 0, "ulong", 0, "ulong", $REG_OPTION_NON_VOLATILE, "ptr", $Disposition)
If NT_SUCCESS($ret[0]) Then
Return $ret[1]
Else
ConsoleWrite("Ntstatus: NtCreateKey: 0x" & Hex($ret[0],8) & @CRLF)
ConsoleWrite("System error code: " & _LsaNtStatusToWinError($ret[0]) & @CRLF)
Return SetError(1,0,0)
EndIf
EndFunc

Func NT_SUCCESS($status)
If 0 <= $status And $status <= 0x7FFFFFFF Then
     Return True
Else
     Return False
EndIf
EndFunc

Func _LsaNtStatusToWinError($iNtStatus)
Local $iSysError
$iSysError = DllCall("Advapi32.dll", "ulong", "LsaNtStatusToWinError", "dword", $iNtStatus)
Return $iSysError[0]
EndFunc

Btw, parts of the code is taken from wraithdu's ads sample.

Edited by joakim

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Nevermind. Turned out all that was missing was a * behind "hwnd". :)

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String Local $sClass = "TestButton" Local $wc = DllStructCreate($_tagWNDCLASSEX & ';wchar szClassName[' & (StringLen($sClass) + 1) & ']') ;~ szClassName = "NiceButt" ;~ wc.cbSize = SIZEOF(WNDCLASSEX) $wc.cbSize = DllStructGetPtr($wc, 'szClassName') - DllStructGetPtr($wc) ;~ wc.style = CS_HREDRAW OR CS_VREDRAW OR CS_GLOBALCLASS $wc.style = BitOR($CS_HREDRAW, $CS_VREDRAW, $CS_GLOBALCLASS) ;~ wc.hInstance = GetmoduleHandle(0) 'hInstance $wc.hInstance = _WinAPI_GetModuleHandle(0) ;~ wc.hbrBackground = Cast(HBRUSH,COLOR_BTNFACE+1) ;/// $wc.hbrBackground = _WinAPI_CreateSolidBrush(_WinAPI_GetSysColor($COLOR_BTNFACE)) ;~ wc.lpszClassName = StrPtr(szClassName) $wc.lpszClassName = DllStructGetPtr($wc, 'szClassName') ;~ wc.lpfnWndProc = @NiceButt $wc.lpfnWndProc = DllCallbackGetPtr($hDll) ;~ wc.cbClsExtra = 0 $wc.cbClsExtra = 0 ;~ wc.cbWndExtra = 0 $wc.cbWndExtra = 0 ;~ wc.hIcon = 0 $wc.hIcon = 0 ;~ wc.hCursor = 0 $wc.hCursor = 0 ;~ wc.lpszMenuName = 0 $wc.lpszMenuName = 0 ;~ wc.hIconSm = 0 $wc.hIconSm = 0 $wc.szClassName = $sClass ;~ FUNCTION = RegisterClassEx(@wc) Local $aRet = _WinAPI_RegisterClassEx($wc) Return $aRet ;~ END FUNCTION EndFunc ;******************************************************************** ; Custom Control Procedure ;******************************************************************** ;~ Function NiceButt(ByVal hWnd as HWND,byval Msg as UINT,byval wParam as WPARAM,byval lParam as LPARAM) as LRESULT Func TestButtonProc($hWnd, $iMsg, $wParam, $lParam) Static $bBtnDown, $bMouseOver, $hCaptured Switch $iMsg Case $WM_CREATE Local $Rct = DllStructCreate($_tagRect) Local $iX, $iY, $iW, $iH $bBtnDown = False GetClientRect($hWnd, $Rct) $iX = $Rct.left $iY = $Rct.top $iW = $Rct.right - $Rct.left $iH = $Rct.bottom - $Rct.top InvalidateRect($hWnd, 0, False) ;~ EXIT FUNCTION ;~ Return 0 Case $WM_PAINT Local $ps ;= DllStructCreate($_tagPaintStruct) Local $hPen, $hBrush, $hOldBrush Dim $Rct = DllStructCreate($_tagRect) Dim $Size = DllStructCreate($_tagSize) Dim $T = "", $i Dim $XCtr, $YCtr Dim $iX, $iY, $iW, $iH Dim $iR, $iG, $iB GetClientRect($hWnd, $Rct) $iX = $Rct.left $iY = $Rct.top $iW = $Rct.right - $Rct.left $iH = $Rct.bottom - $Rct.top $XCtr = ($Rct.left + $Rct.right) / 2 $YCtr = ($Rct.top + $Rct.bottom) / 2 ;~ GetWindowText(hWnd,T ,255) ' Grab a copy of control caption ;~ DllCall("user32.dll", "int", "GetWindowTextW", "hwnd", $hWnd, "LPTSTR ", $T, "int", 255) ; not work $T = "Test" ;********************************** ; Draw our control ;********************************** Local $hDC = BeginPaint($hWnd, $ps) ;~ GetTextExtentPoint32(hDC, T , LEN(T),@Size) ' Get caption size GetTextExtentPoint32($hDC, $T, StringLen($T), $Size) $iR = 30 $iG = 90 $iB = 90 Draw_Gradient($hDC, $iX, $iY, $iW, $iH, $iR, $iG, $iB) SetBkMode($hDC, $TRANSPARENT) If $bBtnDown Then ;~ SetTextColor(hDC,_RGB(255,0,0)) SetTextColor($hDC, Dec(0xFF0000)) TextOut($hDC, $XCtr-($Size.cx/2)+1, $YCtr-($Size.cy/2)+1, $T) Else ;~ SetTextColor(hDC,_RGB(0,0,255)) SetTextColor($hDC, Dec(0x0000FF)) TextOut($hDC, $XCtr-$Size.cx/2, $YCtr-$Size.cy/2, $T) EndIf EndPaint($hWnd, $ps) ;~ EXIT FUNCTION ;~ Return 0 Case $WM_LBUTTONUP If $hWnd = $hCaptured Then ReleaseCapture() $bBtnDown = False InvalidateRect($hWnd, 0, 0) Local $hParent = GetParent($hWnd) ;~ SendMessage(hParent,WM_COMMAND,MAKELONG(GetWindowLong(hWnd,GWL_ID), BN_CLICKED),Cast(LONG,hWnd)) DllCall("user32.dll", "LRESULT", "SendMessageW", _ "hwnd", $hParent, _ "uint", $WM_COMMAND, _ "WPARAM", _WinAPI_MakeLong(_WinAPI_GetWindowLong($hWnd, $GWL_ID), $BN_CLICKED), _ "LPARAM", $hWnd) EndIf ;~ EXIT FUNCTION Return 0 Case $WM_LBUTTONDOWN SetCapture($hWnd) $hCaptured = $hWnd $bBtnDown = True SetFocus($hWnd) InvalidateRect($hWnd, 0, False) ;~ EXIT FUNCTION Return 0 Case $WM_MOUSEMOVE If $bBtnDown Then If IsMouseOver($hWnd) Then $bBtnDown = True InvalidateRect($hWnd, 0, False) ELSE ReleaseCapture() $bBtnDown = False InvalidateRect($hWnd, 0, False) EndIf EndIf ;~ EXIT FUNCTION ;~ Return 0 Case $WM_MOVING ReleaseCapture() $bBtnDown = False InvalidateRect($hWnd, 0, False) ;~ EXIT FUNCTION ;~ Return 0 Case $WM_SIZE ReleaseCapture() $bBtnDown = False InvalidateRect($hWnd, 0, False) ;~ EXIT FUNCTION ;~ Return 0 EndSwitch ;~ Return _WinAPI_DefWindowProc($hWnd, $iMsg, $wParam, $lParam) Return DllCall("user32.dll", "lresult", "DefWindowProcW", "hwnd", $hWnd, "uint", $iMsg, "wparam", $wParam, _ "lparam", $lParam)[0] EndFunc ;~ SUB Draw_Gradient (hdc as HDC, x As Integer, y As integer, w As integer, h As Integer, r As integer, g As integer, b As integer) Func Draw_Gradient($hDC, $iX, $iY, $iW, $iH, $iR, $iG, $iB) ;~ DIM Vert(2) AS TRIVERTEX Local $Vert[2] $Vert[0] = DllStructCreate($_tagTrivertex) $Vert[1] = DllStructCreate($_tagTrivertex) ;~ DIM Rect AS GRADIENT_RECT Local $Rect = DllStructCreate($_tagGradient_Rect) ;~ Vert (0).x = 0 $Vert[0].x = 0 ;~ Vert (0).y = 0 $Vert[0].y = 0 ;~ Vert (0).Red = 65535-(65535-(r*256)) $Vert[0].Red = 65535-(65535-($iR*256)) ;~ Vert (0).Green = 65535-(65535-(g*256)) $Vert[0].Green = 65535-(65535-($iG*256)) ;~ Vert (0).Blue = 65535-(65535-(b*256)) $Vert[0].Blue = 65535-(65535-($iB*256)) ;~ Vert (0).Alpha = 0 $Vert[0].Alpha = 0 ;~ '****************************************************** ;~ Vert (1).x = w $Vert[1].x = $iW ;~ Vert (1).y = h/2 $Vert[1].y = $iH/2 ;~ Vert (1).Red = 65535-(65535-(255*256)) $Vert[1].Red = 65535-(65535-(255*256)) ;~ Vert (1).Green = 65535-(65535-(255*256)) $Vert[1].Green = 65535-(65535-(255*256)) ;~ Vert (1).Blue = 65535-(65535-(255*256)) $Vert[1].Blue = 65535-(65535-(255*256)) ;~ Vert (1).Alpha = 0 $Vert[1].Alpha = 0 ;~ '****************************************************** ;~ Rect.UpperLeft = 0 $Rect.UpperLeft = 0 ;~ Rect.LowerRight = 1 $Rect.LowerRight = 1 ;~ '****************************************************** ;~ Gradientfill(hdc,@Vert(0),2,@Rect,1,GRADIENT_FILL_RECT_V) GradientFill($hDC, $Vert[0], 2, $Rect, 1, $GRADIENT_FILL_RECT_V) ;~ '****************************************************** ;~ Vert (0).x = 0 $Vert[0].x = 0 ;~ Vert (0).y = h/2 $Vert[0].y = $iH/2 ;~ Vert (0).Red = 65535-(65535-(255*256)) $Vert[0].Red = 65535-(65535-(255*256)) ;~ Vert (0).Green = 65535-(65535-(255*256)) $Vert[0].Green = 65535-(65535-(255*256)) ;~ Vert (0).Blue = 65535-(65535-(255*256)) $Vert[0].Blue = 65535-(65535-(255*256)) ;~ Vert (0).Alpha = 0 $Vert[0].Alpha = 0 ;~ '****************************************************** ;~ Vert (1).x = w $Vert[1].x = $iW ;~ Vert (1).y = h $Vert[1].y = $iH ;~ Vert (1).Red = 65535-(65535-(r*256)) $Vert[1].Red = 65535-(65535-($iR*256)) ;~ Vert (1).Green = 65535-(65535-(g*256)) $Vert[1].Green = 65535-(65535-($iG*256)) ;~ Vert (1).Blue = 65535-(65535-(b*256)) $Vert[1].Blue = 65535-(65535-($iB*256)) ;~ Vert (1).Alpha = 0 $Vert[1].Alpha = 0 ;~ '****************************************************** ;~ Rect.UpperLeft = 0 $Rect.UpperLeft = 0 ;~ Rect.LowerRight = 1 $Rect.LowerRight = 1 ;~ '****************************************************** ;~ Gradientfill(hdc,@Vert(0),2,@Rect,1,GRADIENT_FILL_RECT_V) GradientFill($hDC, $Vert[0], 2, $Rect, 1, $GRADIENT_FILL_RECT_V) ;~ END SUB EndFunc Func IsMouseOver($hWnd) Local $Rect = DllStructCreate($_tagRect) Local $Pt = DllStructCreate($_tagPoint) GetWindowRect ($hWnd, $Rect) GetCursorPos($Pt) Return PtInRect($Rect, $Pt) EndFunc Func _RGB($iR, $iG, $iB) Return ('0x' & Hex($iR, 2) & Hex($iG, 2) & Hex($iB, 2)) EndFunc Func _BGR($iB, $iG, $iR) Return ('0x' & Hex($iB, 2) & Hex($iG, 2) & Hex($iR, 2)) EndFunc Func InvalidateRect($hWnd, $tRECT = 0, $bErase = True) DllCall("user32.dll", "bool", "InvalidateRect", "hwnd", $hWnd, "struct*", $tRECT, "bool", $bErase) EndFunc Func SetFocus($hWnd) DllCall("user32.dll", "hwnd", "SetFocus", "hwnd", $hWnd) EndFunc Func PtInRect($tRect, $tPoint) Local $aRet = DllCall("user32.dll", "bool", "PtInRect", "ptr", DllStructGetPtr($tRect), "struct*", $tPoint) If IsArray($aRet) Then Return $aRet[0] Return False EndFunc Func GetWindowRect($hWnd, ByRef $tRect) DllCall("user32.dll", "bool", "GetWindowRect", "hwnd", $hWnd, "struct*", $tRect) EndFunc Func GetCursorPos(ByRef $tPoint) DllCall("user32.dll", "bool", "GetCursorPos", "struct*", $tPoint) EndFunc Func SetCapture($hWnd) DllCall("user32.dll", "hwnd", "SetCapture", "hwnd", $hWnd) EndFunc Func ReleaseCapture() DllCall("user32.dll", "bool", "ReleaseCapture") EndFunc Func SetTextColor($hDC, $iColor) DllCall("gdi32.dll", "INT", "SetTextColor", "handle", $hDC, "INT", $iColor) EndFunc Func BeginPaint($hWnd, ByRef $tPAINTSTRUCT) $tPAINTSTRUCT = DllStructCreate($tagPAINTSTRUCT) Local $aRet = DllCall('user32.dll', 'handle', 'BeginPaint', 'hwnd', $hWnd, 'struct*', $tPAINTSTRUCT) If @error Then Return SetError(@error, @extended, 0) Return $aRet[0] EndFunc Func GetTextExtentPoint32($hDC, $sText, $iTextLen, ByRef $tSize) DllCall("gdi32.dll", "bool", "GetTextExtentPoint32W", "handle", $hDC, "wstr", $sText, "int", $iTextLen, "struct*", $tSize) EndFunc Func GradientFill($hDC, $tVertex, $nVertex, $tMesh, $nMesh, $ulMode) DllCall("Msimg32.dll", "BOOL", "GradientFill", _ "handle", $hDC, _ "struct*", $tVertex, _ "ulong", $nVertex, _ "struct*", $tMesh, _ "ulong", $nMesh, _ "ulong", $ulMode) EndFunc Func GetParent($hWnd) Local $aResult = DllCall("user32.dll", "hwnd", "GetParent", "hwnd", $hWnd) If @error Then Return SetError(@error, @extended, 0) Return $aResult[0] EndFunc Func SetBkMode($hDC, $iBkMode) Local $aResult = DllCall("gdi32.dll", "int", "SetBkMode", "handle", $hDC, "int", $iBkMode) If @error Then Return SetError(@error, @extended, 0) Return $aResult[0] EndFunc Func EndPaint($hWnd, ByRef $tPAINTSTRUCT) Local $aRet = DllCall('user32.dll', 'bool', 'EndPaint', 'hwnd', $hWnd, 'struct*', $tPAINTSTRUCT) If @error Then Return SetError(@error, @extended, False) Return $aRet[0] EndFunc Func GetClientRect($hWnd, ByRef $tRect) Local $aRet = DllCall("user32.dll", "bool", "GetClientRect", "hwnd", $hWnd, "struct*", $tRect) If @error Or Not $aRet[0] Then Return SetError(@error + 10, @extended, 0) Return $tRect EndFunc Func TextOut($hDC, $iX, $iY, $sText, $iTextLen = Default) If $iTextLen = Default Then $iTextLen = StringLen($sText) DllCall('gdi32.dll', 'bool', 'TextOutW', 'handle', $hDC, 'int', $iX, 'int', $iY, 'wstr', $sText, 'int', $iTextLen) EndFunc  
    • Simpel
      By Simpel
      Hi,
      since some days I become this error message exiting my app:

      Eventviewer shows following data:
      Name der fehlerhaften Anwendung: autoit3.exe, Version: 3.3.14.2, Zeitstempel: 0x55fc1979 Name des fehlerhaften Moduls: ntdll.dll, Version: 6.1.7601.23864, Zeitstempel: 0x595fa490 Ausnahmecode: 0xc000000d Fehleroffset: 0x000987e0 I stripped my code from 1500 lines down to 70:
      #include <GUIConstants.au3> Global $g_sPathToPDF = ; path to some pdf file to show Opt("GUIOnEventMode", 1) ; default ist 0 ; 1 bedeutet, daß bei Klick direkt die darunterbeschriebene Funktion ausgeführt wird Global $g_hGUI_MAIN ; Haupt-GUI Global $g_hDummy_Main ; Dummy um Fokus in der Haupt-GUI unsichtbar zu setzen Global $g_hGUI_Pruefen ; GUI zum Prüfen aller PDF Global $g_hGUI_PDF ; GUI PDF-Ansicht der ausgewählten PDF Global $g_hPDF ; ActiveX control welches das PDF enthält Global $g_oAcrobatReader ; AcrobatReaderObjekt in dem die PDF gezeigt werden _GUI_Main() GUISetOnEvent ($GUI_EVENT_CLOSE, "_Exit_Main" , $g_hGUI_MAIN) While 1 Sleep(1) WEnd Exit Func _GUI_Main() ; GUI-MAIN $g_hGUI_MAIN = GUICreate("MAIN", 390, 390, 763, 372) GUISetFont(12) GUICtrlCreateButton("NEXT", 20, 20, 350, 55, $BS_DEFPUSHBUTTON) ; Default-Knopf GUICtrlSetOnEvent(-1, "_GUI_Pruefen") GUISetState(@SW_SHOW, $g_hGUI_MAIN) ; GUI anzeigen EndFunc Func _GUI_Pruefen() ; GUI zum Prüfen der PDF GUISetState(@SW_HIDE, $g_hGUI_MAIN) ; MAIN-GUI ausblenden Opt("GUIOnEventMode", 0) ; wieder auf Default gesetzt $g_hGUI_Pruefen = GUICreate("RIGHT", 490,950, 1057, 91, -1, $WS_EX_APPWINDOW, $g_hGUI_MAIN) _AcrobatShow($g_sPathToPDF, "", 367, 91, 674, 950, $g_hGUI_Pruefen) ; PDF-GUI erstellen GUISetState(@SW_SHOW, $g_hGUI_Pruefen) ; GUI-Prüfen anzeigen Local $msg While 1 $msg = GuiGetMsg() ; Aktion mit der GUI registrieren Switch $msg ; je nach Aktion mit der GUI Case $GUI_EVENT_CLOSE ; X gedrückt $g_oAcrobatReader = "" ; zerstöre das Objekt AcrobatReader GUIDelete($g_hGUI_PDF) ; lösche die GUI-PDF GUIDelete($g_hGUI_Pruefen) ; lösche die GUI-Prüfen Opt("GUIOnEventMode", 1) ; Default 0 GUISetState(@SW_SHOW, $g_hGUI_MAIN) ; MAIN-GUI wieder zeigen Return EndSwitch WEnd EndFunc Func _Exit_Main() ; ausführen, wenn die MAIN-GUI schließt ConsoleWrite("EXIT" & @CRLF) Exit EndFunc Func _AcrobatShow($sFile, $sTitle = "PDF ", $iLeft = 50, $iTop = 0, $iWidth = 1000, $iHeight = 700, $hWnd = "") ; GUI-PDF erstellen If FileExists($sFile) Then ; wenn das PDF existiert $g_oAcrobatReader = ObjCreate("AcroPDF.PDF.1") $g_oAcrobatReader.src = $sFile ; Quelle ist das File $g_oAcrobatReader.SetLayoutMode("SinglePage") ; default "SinglePage" $g_oAcrobatReader.SetPageMode("none") ; default "none" $g_oAcrobatReader.SetShowToolbar(0) ; Tool-Bar nicht zeigen 0 $g_oAcrobatReader.SetShowScrollbars(0) ; Scroll-Balken nicht zeigen 0 $g_oAcrobatReader.SetView("fit") ; "fit" falls wer eigene Einstellungen im Reader gespeichert hat $g_hGUI_PDF = GUICreate($sTitle, $iWidth, $iHeight, $iLeft, $iTop, -1, -1, $hWnd) ; GUI als Child zu GUI-PRUEFEN erstellen - es soll nicht aktiviert werden $g_hPDF = GUICtrlCreateObj($g_oAcrobatReader, 0, 0, $iWidth, $iHeight) ; Objekt für das PDF erstellen GUICtrlSetStyle($g_hPDF, $WS_VISIBLE) ; PDF anzeigen GUISetState(@SW_SHOW, $g_hGUI_PDF) ; GUI-PDF anzeigen Else MsgBox(0, 'ERROR', "No PDF found.") EndIf EndFunc Do following steps to prove:
      - start app
      - click "next" on main gui
      - wait minimum 5 seconds (until the arrows left and right on "gui left" disappear)
      - close gui left or right
      - close main gui
      - look on console written "EXIT" the last code line before exit
      - now windows error message above appears
      The funny thing is if I don't wait the 5 seconds (before the half transparent arrows disappear) closing the gui then I will get no win error message.
      If I comment _AcrobatShow() out then the error never appears. So it seemed to be an acrobat reader issue. Every week at work there are a lot of updates, but there is no chance to know which one. But since one update this error happens.
      Any solutions? Regards, Conrad
    • luckyluke
      By luckyluke
      Hello,
      Im trying to read the output from CMD using Dllcall, here is my code:
      #include <WinAPI.au3> #include <array.au3> Global Const $STD_OUTPUT_HANDLE = -11 Global Const $_CONSOLE_SCREEN_BUFFER_INFO = _ "struct;int dwSizeX;" & _ "short dwSizeY;" & _ "short dwCursorPositionX;" & _ "short dwCursorPositionY;" & _ "short wAttributes;" & _ "short Left;" & _ "short Top;" & _ "short Right;" & _ "short Bottom;" & _ "short dwMaximumWindowSizeX;" & _ "short dwMaximumWindowSizeY;endstruct" $pCmd = Run( "cmd.exe" ) Sleep(1000) $hCmd = WinGetHandle("") ConsoleWrite('handle:' & $hCmd & @CRLF) $aRet = DllCall("kernel32.dll", "int", "AttachConsole", "dword", $pCmd) ;_ArrayDisplay($aRet) If $aRet[0] <> 0 Then $vHandle_data='' $vHandle='' $vHandle_data = DllStructCreate($_CONSOLE_SCREEN_BUFFER_INFO) ; Screen Buffer structure $aRet1 = DllCall("kernel32.dll", "hwnd", "GetStdHandle", "dword", $STD_OUTPUT_HANDLE) if not @error Then $vHandle = $aRet1[0] $aRet = DllCall("kernel32.dll", "int", "GetConsoleScreenBufferInfo", "hwnd", $vHandle, _ "ptr", $vHandle_data) MsgBox(0, '1',DllStructGetData($vHandle_data, 'dwSizeX') & _WinAPI_GetLastErrorMessage()) EndIf It did not work, i got the message 'The handle is invalid'. Please help?
      Thank you in advance!
    • r0ash
      By r0ash
      Hey guys, MattDiesel over Stackoverflow mentioned this beautiful piece of code 
      #include <WindowsConstants.au3> #include <WinAPI.au3> Local $IDM_FONT = 33 Local $hWindow = WinGetHandle("Untitled - Notepad") _WinAPI_PostMessage($hWindow, $WM_COMMAND, $IDM_FONT, 0) Local $hFontWin = WinWait("Font") $select = ControlCommand($hFontWin, "", "ComboBox1", "GetCurrentSelection", "") WinClose($hFontWin) MsgBox(0,"", $select) I realized that _WinAPI_PostMessage can trigger menu click event, even if Notepad is minimized.
      How do we know what is the decimal value of *any menu item or sub-menu item*? How we know "Format > Font" menu-item is 33 as wParam to _WinAPI_PostMessage()? Have a look at snapshot.
      Regards.