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• SharePoint 2010 Search Error 0x800703fa

  - by Ben

  We have migrated from SharePoint 2007 to 2010. Everything appears to be working correctly except for an intermitent error with search. Occastionally search results will crash for all of our sites and when we look up the coorliation id we get the following error: Exception when fetching results: System.ServiceModel.FaultException`1[System.ServiceModel.ExceptionDetail]: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) (Fault Detail is equal to An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is: System.Runtime.InteropServices.COMException: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at Microsoft.Office.Server.Search.Query.KeywordQueryInternal.Execute() at Microsoft.Office.Server.Search.Query.QueryInternal.Execute(QueryProperties properties) at Microsoft.Office.Server.Search.Administration.SearchServiceApplication.Execute(QueryProperties properties) at SyncInvokeExecute(Object , Object[] , Object[] ) at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs) at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc) We reset IIS and the problem resolves itself for a while. Has anyone come across a perminant fix for this?

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• Powershell import-module webadministration

  - by David

  Every time I execute this command invoke-command -computername REMOTEPC -scriptblock { import-module WebAdministration; new-item "$env:systemdrive\inetpub\testsite" -type directory; New-WebSite -Name TestSite -Port 81 -PhysicalPath "$env:systemdrive\inetpub\testsite" } I get the following error Invalid class string (Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING)) + CategoryInfo : NotSpecified: (:) [Get-ChildItem], COMException + FullyQualifiedErrorId : System.Runtime.InteropServices.COMException,Microsoft.PowerShell.Commands.GetChildItemCommand The website is created successfully as far as I can see. The following command gives the same error when enumerating the testsite Invoke-Command -computername REMOTEPC { import-module webadministration; dir -path IIS:\Sites\ } Name ID State Physical Path Bindings PSComputerName Default Web Site 1 Started http *:80: REMOTEPC Invalid class string (Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING)) + CategoryInfo : NotSpecified: (:) [Get-ChildItem], COMException + FullyQualifiedErrorId : System.Runtime.InteropServices.COMException,Microsoft.PowerShell.Commands.GetChildItemCo mmand Any suggestions would be appreciated

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• Need Help Setting an Image with Transparent Background to Clipboard

  - by AMissico

  I need help setting a transparent image to the clipboard. I keep getting "handle is invalid". Basically, I need a "second set of eyes" to look over the following code. (The complete working project at ftp://missico.net/ImageVisualizer.zip.) This is an image Debug Visualizer class library, but I made the included project to run as an executable for testing. (Note that window is a toolbox window and show in taskbar is set to false.) I was tired of having to perform a screen capture on the toolbox window, open the screen capture with an image editor, and then deleting the background added because it was a screen capture. So I thought I would quickly put the transparent image onto the clipboard. Well, the problem is...no transparency support for Clipboard.SetImage. Google to the rescue...not quite. This is what I have so far. I pulled from a number of sources. See the code for the main reference. My problem is the "invalid handle" when using CF_DIBV5. Do I need to use BITMAPV5HEADER and CreateDIBitmap? Any help from you GDI/GDI+ Wizards would be greatly appreciated. public static void SetClipboardData(Bitmap bitmap, IntPtr hDC) { const uint SRCCOPY = 0x00CC0020; const int CF_DIBV5 = 17; const int CF_BITMAP = 2; //'reference //'http://social.msdn.microsoft.com/Forums/en-US/winforms/thread/816a35f6-9530-442b-9647-e856602cc0e2 IntPtr memDC = CreateCompatibleDC(hDC); IntPtr memBM = CreateCompatibleBitmap(hDC, bitmap.Width, bitmap.Height); SelectObject(memDC, memBM); using (Graphics g = Graphics.FromImage(bitmap)) { IntPtr hBitmapDC = g.GetHdc(); IntPtr hBitmap = bitmap.GetHbitmap(); SelectObject(hBitmapDC, hBitmap); BitBlt(memDC, 0, 0, bitmap.Width, bitmap.Height, hBitmapDC, 0, 0, SRCCOPY); if (!OpenClipboard(IntPtr.Zero)) { throw new System.Runtime.InteropServices.ExternalException("Could not open Clipboard", new Win32Exception()); } if (!EmptyClipboard()) { throw new System.Runtime.InteropServices.ExternalException("Unable to empty Clipboard", new Win32Exception()); } //IntPtr hClipboard = SetClipboardData(CF_BITMAP, memBM); //works but image is not transparent //all my attempts result in SetClipboardData returning hClipboard = IntPtr.Zero IntPtr hClipboard = SetClipboardData(CF_DIBV5, memBM); //because if (hClipboard == IntPtr.Zero) { // InnerException: System.ComponentModel.Win32Exception // Message="The handle is invalid" // ErrorCode=-2147467259 // NativeErrorCode=6 // InnerException: throw new System.Runtime.InteropServices.ExternalException("Could not put data on Clipboard", new Win32Exception()); } if (!CloseClipboard()) { throw new System.Runtime.InteropServices.ExternalException("Could not close Clipboard", new Win32Exception()); } g.ReleaseHdc(hBitmapDC); } } private void __copyMenuItem_Click(object sender, EventArgs e) { using (Graphics g = __pictureBox.CreateGraphics()) { IntPtr hDC = g.GetHdc(); MemoryStream ms = new MemoryStream(); __pictureBox.Image.Save(ms, ImageFormat.Png); ms.Seek(0, SeekOrigin.Begin); Image imag = Image.FromStream(ms); // Derive BitMap object using Image instance, so that you can avoid the issue //"a graphics object cannot be created from an image that has an indexed pixel format" Bitmap img = new Bitmap(new Bitmap(imag)); SetClipboardData(img, hDC); g.ReleaseHdc(); } }

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• I can't get SetSystemTime to work in Windows Vista using C# with Interop (P/Invoke).

  - by Andrew

  Hi, I'm having a hard time getting SetSystemTime working in my C# code. SetSystemtime is a kernel32.dll function. I'm using P/invoke (interop) to call it. SetSystemtime returns false and the error is "Invalid Parameter". I've posted the code below. I stress that GetSystemTime works just fine. I've tested this on Vista and Windows 7. Based on some newsgroup postings I've seen I have turned off UAC. No difference. I have done some searching for this problem. I found this link: http://groups.google.com.tw/group/microsoft.public.dotnet.framework.interop/browse_thread/thread/805fa8603b00c267 where the problem is reported but no resolution seems to be found. Notice that UAC is also mentioned but I'm not sure this is the problem. Also notice that this gentleman gets no actual Win32Error. Can someone try my code on XP? Can someone tell me what I'm doing wrong and how to fix it. If the answer is to somehow change permission settings programatically, I'd need an example. I would have thought turning off UAC should cover that though. I'm not required to use this particular way (SetSystemTime). I'm just trying to introduce some "clock drift" to stress test something. If there's another way to do it, please tell me. Frankly, I'm surprised I need to use Interop to change the system time. I would have thought there is a .NET method. Thank you very much for any help or ideas. Andrew Code: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Runtime.InteropServices; namespace SystemTimeInteropTest { class Program { #region ClockDriftSetup [StructLayout(LayoutKind.Sequential)] public struct SystemTime { [MarshalAs(UnmanagedType.U2)] public short Year; [MarshalAs(UnmanagedType.U2)] public short Month; [MarshalAs(UnmanagedType.U2)] public short DayOfWeek; [MarshalAs(UnmanagedType.U2)] public short Day; [MarshalAs(UnmanagedType.U2)] public short Hour; [MarshalAs(UnmanagedType.U2)] public short Minute; [MarshalAs(UnmanagedType.U2)] public short Second; [MarshalAs(UnmanagedType.U2)] public short Milliseconds; } [DllImport("kernel32.dll")] public static extern void GetLocalTime( out SystemTime systemTime); [DllImport("kernel32.dll")] public static extern void GetSystemTime( out SystemTime systemTime); [DllImport("kernel32.dll", SetLastError = true)] public static extern bool SetSystemTime( ref SystemTime systemTime); //[DllImport("kernel32.dll", SetLastError = true)] //public static extern bool SetLocalTime( //ref SystemTime systemTime); [System.Runtime.InteropServices.DllImportAttribute("kernel32.dll", EntryPoint = "SetLocalTime")] [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)] public static extern bool SetLocalTime([InAttribute()] ref SystemTime lpSystemTime); #endregion ClockDriftSetup static void Main(string[] args) { try { SystemTime sysTime; GetSystemTime(out sysTime); sysTime.Milliseconds += (short)80; sysTime.Second += (short)3000; bool bResult = SetSystemTime(ref sysTime); if (bResult == false) throw new System.ComponentModel.Win32Exception(); } catch (Exception ex) { Console.WriteLine("Drift Error: " + ex.Message); } } } }

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• Need Help Setting Transparent Image to Clipboard

  - by AMissico

  I need help setting a transparent image to the clipboard. I keep getting "handle is invalid". Following is the specific code with the complete working project at ftp://missico.net/ImageVisualizer.zip. This is an image Debug Visualizer class library, but I made to run as executable for testing. (Note that window is a toolbox window and show in taskbar is set to false.) I was tired of having to perform a screen capture on the toolbox window, open with an image editor, and then deleting the background added due to the screen capture. So I thought I would quickly put the transparent image onto the clipboard. Well, the problem is...no transparency support for Clipboard.SetImage. Google to the rescue...not quite. This is what I have so far pulled from a number of sources. See the code for the main reference. My problem is the "invalid handle" when using CF_DIBV5. I imagine the problem is related to BITMAPV5HEADER and CreateDIBitmap. Any help from you GDI/GDI+ Wizards would be greatly appreciated. public static void SetClipboardData(Bitmap bitmap, IntPtr hDC) { const uint SRCCOPY = 0x00CC0020; const int CF_DIBV5 = 17; const int CF_BITMAP = 2; //'reference //'http://social.msdn.microsoft.com/Forums/en-US/winforms/thread/816a35f6-9530-442b-9647-e856602cc0e2 IntPtr memDC = CreateCompatibleDC(hDC); IntPtr memBM = CreateCompatibleBitmap(hDC, bitmap.Width, bitmap.Height); SelectObject(memDC, memBM); using (Graphics g = Graphics.FromImage(bitmap)) { IntPtr hBitmapDC = g.GetHdc(); IntPtr hBitmap = bitmap.GetHbitmap(); SelectObject(hBitmapDC, hBitmap); BitBlt(memDC, 0, 0, bitmap.Width, bitmap.Height, hBitmapDC, 0, 0, SRCCOPY); if (!OpenClipboard(IntPtr.Zero)) { throw new System.Runtime.InteropServices.ExternalException("Could not open Clipboard", new Win32Exception()); } if (!EmptyClipboard()) { throw new System.Runtime.InteropServices.ExternalException("Unable to empty Clipboard", new Win32Exception()); } //IntPtr hClipboard = SetClipboardData(CF_BITMAP, memBM); //works but image is not transparent //all my attempts result in SetClipboardData returning hClipboard = IntPtr.Zero IntPtr hClipboard = SetClipboardData(CF_DIBV5, memBM); //because if (hClipboard == IntPtr.Zero) { // InnerException: System.ComponentModel.Win32Exception // Message="The handle is invalid" // ErrorCode=-2147467259 // NativeErrorCode=6 // InnerException: throw new System.Runtime.InteropServices.ExternalException("Could not put data on Clipboard", new Win32Exception()); } if (!CloseClipboard()) { throw new System.Runtime.InteropServices.ExternalException("Could not close Clipboard", new Win32Exception()); } g.ReleaseHdc(hBitmapDC); } } private void __copyMenuItem_Click(object sender, EventArgs e) { //'Applications that I have verified can paste the clipboard custom data format PNG are: //' Word 2003 //' Excel 2003 using (Graphics g = __pictureBox.CreateGraphics()) { IntPtr hDC = g.GetHdc(); MemoryStream ms = new MemoryStream(); __pictureBox.Image.Save(ms, ImageFormat.Png); ms.Seek(0, SeekOrigin.Begin); Image imag = Image.FromStream(ms); // Derive BitMap object using Image instance, so that you can avoid the issue //"a graphics object cannot be created from an image that has an indexed pixel format" Bitmap img = new Bitmap(new Bitmap(imag)); SetClipboardData(img, hDC); g.ReleaseHdc(); } }

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• Marshalling the value of a char* ANSI string DLL API parameter into a C# string

  - by Brian Biales

  For those who do not mix .NET C# code with legacy DLL's that use char* pointers on a regular basis, the process to convert the strings one way or the other is non-obvious. This is not a comprehensive article on the topic at all, but rather an example of something that took me some time to go find, maybe it will save someone else the time. I am utilizing a third party too that uses a call back function to inform my application of its progress.  This callback includes a pointer that under some circumstances is a pointer to an ANSI character string.  I just need to marshal it into a C# string variable.  Seems pretty simple, yes?  Well, it is, (as are most things, once you know how to do them). The parameter of my callback function is of type IntPtr, which implies it is an integer representation of a pointer.  If I know the pointer is pointing to a simple ANSI string, here is a simple static method to copy it to a C# string: private static string GetStringFromCharStar(IntPtr ptr) {     return System.Runtime.InteropServices.Marshal.PtrToStringAnsi(ptr); } The System.Runtime.InteropServices is where to look any time you are mixing legacy unmanaged code with your .NET application.

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• How to figure out who owns a worker thread that is still running when my app exits?

  - by Dave

  Not long after upgrading to VS2010, my application won't shut down cleanly. If I close the app and then hit pause in the IDE, I see this: The problem is, there's no context. The call stack just says [External code], which isn't too helpful. Here's what I've done so far to try to narrow down the problem: deleted all extraneous plugins to minimize the number of worker threads launched set breakpoints in my code anywhere I create worker threads (and delegates + BeginInvoke, since I think they are labeled "Worker Thread" in the debugger anyway). None were hit. set IsBackground = true for all threads While I could do the next brute force step, which is to roll my code back to a point where this didn't happen and then look over all of the change logs, this isn't terribly efficient. Can anyone recommend a better way to figure this out, given the notable lack of information presented by the debugger? The only other things I can think of include: read up on WinDbg and try to use it to stop anytime a thread is started. At least, I thought that was possible... :) comment out huge blocks of code until the app closes properly, then start uncommenting until it doesn't. UPDATE Perhaps this information will be of use. I decided to use WinDbg and attach to my application. I then closed it, and switched to thread 0 and dumped the stack contents. Here's what I have: ThreadCount: 6 UnstartedThread: 0 BackgroundThread: 1 PendingThread: 0 DeadThread: 4 Hosted Runtime: no PreEmptive GC Alloc Lock ID OSID ThreadOBJ State GC Context Domain Count APT Exception 0 1 1c70 005a65c8 6020 Enabled 02dac6e0:02dad7f8 005a03c0 0 STA 2 2 1b20 005b1980 b220 Enabled 00000000:00000000 005a03c0 0 MTA (Finalizer) XXXX 3 08504048 19820 Enabled 00000000:00000000 005a03c0 0 Ukn XXXX 4 08504540 19820 Enabled 00000000:00000000 005a03c0 0 Ukn XXXX 5 08516a90 19820 Enabled 00000000:00000000 005a03c0 0 Ukn XXXX 6 08517260 19820 Enabled 00000000:00000000 005a03c0 0 Ukn 0:008> ~0s eax=c0674960 ebx=00000000 ecx=00000000 edx=00000000 esi=0040f320 edi=005a65c8 eip=76c37e47 esp=0040f23c ebp=0040f258 iopl=0 nv up ei pl nz na po nc cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000202 USER32!NtUserGetMessage+0x15: 76c37e47 83c404 add esp,4 0:000> !clrstack OS Thread Id: 0x1c70 (0) Child SP IP Call Site 0040f274 76c37e47 [InlinedCallFrame: 0040f274] 0040f270 6baa8976 DomainBoundILStubClass.IL_STUB_PInvoke(System.Windows.Interop.MSG ByRef, System.Runtime.InteropServices.HandleRef, Int32, Int32)*** WARNING: Unable to verify checksum for C:\Windows\assembly\NativeImages_v4.0.30319_32\WindowsBase\d17606e813f01376bd0def23726ecc62\WindowsBase.ni.dll 0040f274 6ba924c5 [InlinedCallFrame: 0040f274] MS.Win32.UnsafeNativeMethods.IntGetMessageW(System.Windows.Interop.MSG ByRef, System.Runtime.InteropServices.HandleRef, Int32, Int32) 0040f2c4 6ba924c5 MS.Win32.UnsafeNativeMethods.GetMessageW(System.Windows.Interop.MSG ByRef, System.Runtime.InteropServices.HandleRef, Int32, Int32) 0040f2dc 6ba8e5f8 System.Windows.Threading.Dispatcher.GetMessage(System.Windows.Interop.MSG ByRef, IntPtr, Int32, Int32) 0040f318 6ba8d579 System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame) 0040f368 6ba8d2a1 System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame) 0040f374 6ba7fba0 System.Windows.Threading.Dispatcher.Run() 0040f380 62e6ccbb System.Windows.Application.RunDispatcher(System.Object)*** WARNING: Unable to verify checksum for C:\Windows\assembly\NativeImages_v4.0.30319_32\PresentationFramewo#\7f91eecda3ff7ce478146b6458580c98\PresentationFramework.ni.dll 0040f38c 62e6c8ff System.Windows.Application.RunInternal(System.Windows.Window) 0040f3b0 62e6c682 System.Windows.Application.Run(System.Windows.Window) 0040f3c0 62e6c30b System.Windows.Application.Run() 0040f3cc 001f00bc MyApplication.App.Main() [C:\code\trunk\MyApplication\obj\Debug\GeneratedInternalTypeHelper.g.cs @ 24] 0040f608 66c421db [GCFrame: 0040f608] EDIT -- not sure if this helps, but the main thread's call stack looks like this: [Managed to Native Transition] > WindowsBase.dll!MS.Win32.UnsafeNativeMethods.GetMessageW(ref System.Windows.Interop.MSG msg, System.Runtime.InteropServices.HandleRef hWnd, int uMsgFilterMin, int uMsgFilterMax) + 0x15 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.GetMessage(ref System.Windows.Interop.MSG msg, System.IntPtr hwnd, int minMessage, int maxMessage) + 0x48 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame frame = {System.Windows.Threading.DispatcherFrame}) + 0x85 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame frame) + 0x49 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.Run() + 0x4c bytes PresentationFramework.dll!System.Windows.Application.RunDispatcher(object ignore) + 0x17 bytes PresentationFramework.dll!System.Windows.Application.RunInternal(System.Windows.Window window) + 0x6f bytes PresentationFramework.dll!System.Windows.Application.Run(System.Windows.Window window) + 0x26 bytes PresentationFramework.dll!System.Windows.Application.Run() + 0x1b bytes I did a search on it and found some posts related to WPF GUIs hanging, and maybe that'll give me some more clues.

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• Handling "No cells were found." Error in Excel

  - by Sathish

  I am working on Excel VSTO application and finding error cells in the worksheets using the below code Excel.Range rngTemp; Excel.Range rngErrorRange; Excel._Worksheet Sheet1 = (Excel._Worksheet)xlCTA.Sheets["Sheet1"]; rngTemp = wsCTAWK11.UsedRange; rngErrorRange = rngTemp.SpecialCells(Excel.XlCellType.xlCellTypeFormulas, Excel.XlSpecialCellsValue.xlErrors); when there are really error cells found then i do not have any issues but when i dont have any error cells in these sheet i get the below exception **threw an exception of type 'System.Runtime.InteropServices.COMException' base {System.Runtime.InteropServices.ExternalException}: {"No cells were found."}** How to handle this... Pls help

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• Using Bitmap.LockBits and Marshal.Copy in IronPython not changing image as expected

  - by Leonard H Martin

  Hi all, I have written the following IronPython code: import clr clr.AddReference("System.Drawing") from System import * from System.Drawing import * from System.Drawing.Imaging import * originalImage = Bitmap("Test.bmp") def RedTint(bitmap): bmData = bitmap.LockBits(Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb) ptr = bmData.Scan0 bytes = bmData.Stride * bitmap.Height rgbValues = Array.CreateInstance(Byte, bytes) Runtime.InteropServices.Marshal.Copy(ptr, rgbValues, 0, bytes) for i in rgbValues[::3]: i = 255 Runtime.InteropServices.Marshal.Copy(rgbValues, 0, ptr, bytes) bitmap.UnlockBits(bmData) return bitmap newPic = RedTint(originalImage) newPic.Save("New.bmp") Which is my interpretation of this MSDN code sample: http://msdn.microsoft.com/en-us/library/5ey6h79d.aspx except that I am saving the altered bitmap instead of displaying it in a Form. The code runs, however the newly saved bitmap is an exact copy of the original image with no sign of any changes having occurred (it's supposed to create a red tint). Could anyone advise what's wrong with my code? The image I'm using is simply a 24bpp bitmap I created in Paint (it's just a big white rectangle!), using IronPython 2.6 and on Windows 7 (x64) with .Net Framework 3.5 SP1 installed.

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• Copy unmanaged data into managed array

  - by JeffRSon

  I need to copy native (i.e. unmanaged) data (byte*) to managed byte array with C++/CLI (array). I tried Marshal::Copy (data is pointed to by const void* data and is dataSize bytes) array<byte>^ _Data=gcnew array<byte>(dataSize); System::Runtime::InteropServices::Marshal::Copy((byte*)data, _Data, 0, dataSize); This gives error C2665: none of the 16 overloads can convert all parameters. Then I tried System::Runtime::InteropServices::Marshal::Copy(new IntPtr(data), _Data, 0, dataSize); which produces error C2664: parameter 1 cannot be converted from "const void*" to "__w64 int". So how can it be done and is Marshal::Copy indeed the "best" (simplest/fastest) way to do so?

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• Coded UI Test Method failed inconsistently

  - by Sunitha M

  The following exception failing my UI automation test. Message: Test method CodedUITestMethod1 throw exception: The playback failed to find the control with the given search properties. Additional Details: TechnologyName: 'UIA' ControlType: 'MenuItem' Name: 'MyViewModel' ---> system.runtime.interopservices.comexception error hresult e_fail has been returned from a call to a COM component please any one give me a solution for these type of exceptions.

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• server 2008 r2 stuck on installing updates

  - by volody

  I have 2008 r2 64bit server that is stuck on installing updates. It shows message "Please do not power off or unplug your machine. Installing 57 of 61.." This message is shown for 3 hours now. I was trying to connect to this server using mmc. runas /user:AdministratorAccountName@ComputerName "mmc %windir%\system32\compmgmt.msc" RUNAS ERROR: Unable to run - mmc C:\Windows\system32\compmgmt.msc 1311: There are currently no logon servers available to service the logon request. What else can I do? Update: Remote Desktop does not work. It just disappear after entering username and password from Win7-64 computer Update: I have disconected server. Now Server Manager in Roles Summary shows message "Unexpected error refreshing Server Manager: The remote procedure call failed." Event log shows Could not discover the state of the system. An unexpected exception was found: System.Runtime.InteropServices.COMException (0x800706BE): The remote procedure call failed. (Exception from HRESULT: 0x800706BE) at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at Microsoft.Windows.ServerManager.ComponentInstaller.ThrowHResult(Int32 hr) at Microsoft.Windows.ServerManager.ComponentInstaller.CreateSessionAndPackage(IntPtr& session, IntPtr& package) at Microsoft.Windows.ServerManager.ComponentInstaller.InitializeUpdateInfo() at Microsoft.Windows.ServerManager.ComponentInstaller.Initialize() at Microsoft.Windows.ServerManager.Common.Provider.RefreshDiscovery() at Microsoft.Windows.ServerManager.LocalResult.PerformDiscovery() at Microsoft.Windows.ServerManager.ServerManagerModel.CreateLocalResult(RefreshType refreshType) at Microsoft.Windows.ServerManager.ServerManagerModel.InternalRefreshModelResult(Object state) Update: Manual update hangs on (Installing update 58 of 62...) Seurity Update for Windows Server 2008 R2 x64 Edition (KB979309) Update: It could be an issue with that admin user was renamed

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• Random Access Violation Exception in WPF Application

  - by PT1984

  Hi, I am facing weird problem while running regression tests on my WPF Application. I am getting AccessViolationException with different stacktraces each time. First : Message :Attempted to read or write protected memory. This is often an indication that other memory is corrupt. StackTrace : at MS.Win32.PresentationCore.UnsafeNativeMethods.MILUnknown.Release(IntPtr pIUnkown) at MS.Win32.PresentationCore.UnsafeNativeMethods.MILUnknown.ReleaseInterface(IntPtr& ptr) at System.Windows.Media.SafeMILHandle.ReleaseHandle() at System.Runtime.InteropServices.SafeHandle.InternalFinalize() at System.Runtime.InteropServices.SafeHandle.Dispose(Boolean disposing) at System.Runtime.InteropServices.SafeHandle.Finalize() Source :PresentationCore Type : System.AccessViolationException. Second : Message :Attempted to read or write protected memory. This is often an indication that other memory is corrupt. StackTrace : at MS.Win32.PresentationCore.UnsafeNativeMethods.IMILBitmapEffect.GetOutput(SafeHandle THIS_PTR, UInt32 uiIndex, SafeMILHandle pContext, BitmapSourceSafeMILHandle& ppBitmapSource) at System.Windows.Media.Effects.BitmapEffect.GetOutput(SafeHandle unmanagedEffect, Int32 index, BitmapEffectRenderContext context) at System.Windows.Media.Effects.BitmapEffect.GetOutput(BitmapEffectInput input) at System.Windows.Media.Effects.BitmapEffectState.GetEffectOutput(Visual visual, RenderTargetBitmap& renderBitmap, Matrix worldTransform, Rect windowClip, Matrix& finalTransform) at System.Windows.Media.Effects.BitmapEffectVisualState.RenderBitmapEffect(Visual visual, Channel channel) at System.Windows.Media.Effects.BitmapEffectContent.ExecuteRealizationsUpdate() at System.Windows.Media.RealizationContext.RealizationUpdateSchedule.Execute() at System.Windows.Media.MediaContext.Render(ICompositionTarget resizedCompositionTarget) at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget) at System.Windows.Media.MediaContext.AnimatedRenderMessageHandler(Object resizedCompositionTarget) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) at System.Windows.Threading.DispatcherOperation.InvokeImpl() at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state) at System.Threading.ExecutionContext.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Windows.Threading.DispatcherOperation.Invoke() at System.Windows.Threading.Dispatcher.ProcessQueue() at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter) at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg) at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam) at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg) at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame) at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame) at System.Windows.Threading.Dispatcher.Run() at System.Windows.Application.RunDispatcher(Object ignore) at System.Windows.Application.RunInternal(Window window) at System.Windows.Application.Run(Window window) at System.Windows.Application.Run() at Main() Source :PresentationCore Type :System.AccessViolationException In Application Event Log I found following entries : Dispatcher processing has been suspended, but messages are still being processed. Faulting application **.exe, version 1.0.0.*, stamp 4c08d288, faulting module wpfgfx_v0300.dll, version 3.0.6920.1427, stamp 488f3056, debug? 0, fault address 0x0012ec36. My Application uses Dispatcher from another thread, to change the values of the controls , enable - disable those, change visibility etc., the thred is run multiple times in a second. Please let me know if anybody has faced this problem? Thanks in advance, -Prasad

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• COM Object Method Invoke Exception - Silverlight 4

  - by Adam Driscoll

  I'm trying to use the new AutomationFactory provided with Silverlight 4 to call a .NET COM class. .NET COM-Exposed Class: public class ObjectContainer { public bool GetObject([Out, MarshalAs((UnmanagedType.IUnknown)] out object obj) { obj = new SomeOtherObj(); return true; } } Silverlight Assembly: dynamic objectContainer; try { objectContainer = AutomationFactory.GetObject(ProgId); } catch { objectContainer = AutomationFactory.CreateObject(ProgId); } object obj; if (!objectContainer.GetObject(out obj)) { throw new Exception(); } When I call objectContainer.GetObject(out obj) an exception is thrown stating: Value does not fall within the expected range. at MS.Internal.ComAutomation.ComAutomationNative.CheckInvokeHResult(UInt32 hr, String memberName, String exceptionSource, String exceptionDescription, String exceptionHelpFile, UInt32 exceptionHelpContext) at MS.Internal.ComAutomation.ComAutomationNative.Invoke(Boolean tryInvoke, String memberName, ComAutomationInvokeType invokeType, ComAutomationInteropValue[] rgParams, IntPtr nativePeer, ComAutomationInteropValue& returnValue) at MS.Internal.ComAutomation.ComAutomationObject.InvokeImpl(Boolean tryInvoke, String name, ComAutomationInvokeType invokeType, Object& returnValue, Object[] args) at MS.Internal.ComAutomation.ComAutomationObject.Invoke(String name, ComAutomationInvokeType invokeType, Object[] args) at System.Runtime.InteropServices.Automation.AutomationMetaObjectProvider.TryInvokeMember(InvokeMemberBinder binder, Object[] args, Object& result) at System.Runtime.InteropServices.Automation.AutomationMetaObjectProviderBase.<.cctorb__4(Object obj, InvokeMemberBinder binder, Object[] args) at CallSite.Target(Closure , CallSite , Object , String , Object& ) at CallSite.Target(Closure , CallSite , Object , String , Object& ) at ApplicationModule.ObjectContainer.GetObject() Wha's the deal?

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• SPException: Catastrophic failure (Exception from HRESULT: 0x8000FFF (E_UNEXPECTED) in Sharepoint

  - by BeraCim

  I've been trying to programmatically copy custom content type and its custom columns from one web to another for some time now, and I always get different errors or exceptions every time. After yet more tries, I received more strange and cryptic exception from Sharepoint after clicking onto a newly copied custom column in a custom content type. I checked the logs, and this is what I got: Unknown SPRequest erorr occurred. More information: 0x80070002 Unable to locate the xml-definition for FieldName with FieldId 'guid without braces', exception: Microsoft.SharePoint.SPException: Catastrophic failure (Exception from HRESULT: 0x8000FFF (E_UNEXPECTED)) ---> System.Runtime.InteropServices.COMException... ... at Microsoft.SharePoint.Library.SPRequestInternalClass.GetGlobalContentTypeXml(String bstrUrl, Int32 type, UInt 32 lcid, Object varIdBytes... Failed to find the content type schema for ct-1033-0x1000blahblahblahcontenttypeId while caching feature data. Unknown SPRequest error occurred. More informationL 0x8000ffff Unable to locate the xml-definition for CType with SPContentTypeId '0x0100MorecontenttypeId', exception: Microsoft.SharePoint.SPException: Catastrophic failure(Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED)) ---> System.Runtime.InteropServices.COMException (0x8000FFFF): Catastrophic failure... ... at Microsoft.SharePoint.Library.SPRequestInternalClass.GetGlobalContentTypeXml(String bstrUrl, Int32 type, UInt 32 lcid, Object varIdBytes... It failed to find quite a few content type schema. I'm confused with what Sharepoint is trying to do here, and why a simple process of copying a custom content type from one web to another just wouldn't work in contrast to the information found on the web e.g. this. Appreciate any help to get over this problem. Thanks.

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• Calling Matlab's MLApp.MLAppClass.FEval from F#

  - by Matthew

  Matlab provides a COM interface that supports remote execution of arbitrary functions (and code snippets). In particular, it has an Feval method that calls a given Matlab function. The third parameter to this method, pvarArgOut, has COM type VARIANT*, and appears in the Visual Studio F# editor as an argument of type: pvarArgOut: byref<obj> The following code calls interp1, which in Matlab returns a matrix (i.e. 2D double array) result, as is normal for most Matlab functions. let matlab = new MLApp.MLAppClass() let vector_to_array2d (v : vector) = Array2D.init v.Length 1 (fun i j -> v.[i]) let interp1 (xs : vector) (ys : vector) (xi : vector) = let yi : obj = new obj() matlab.Feval("interp1", 1, ref yi, vector_to_array2d xs, vector_to_array2d ys, vector_to_array2d xi) yi :?> float[,] This code compiles fine, but when calling interp1, I get a COM exception: A first chance exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll A first chance exception of type 'System.Runtime.InteropServices.COMException' occurred in mscorlib.dll An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in mscorlib.dll Additional information: Invalid callee. (Exception from HRESULT: 0x80020010 (DISP_E_BADCALLEE)) I get the same error whether initialize yi with a new obj, a new Array2D, or null. How does F# translate VARIANT output arguments?

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• ASP.NET 2.0 app runs on Win 2003 in IIS 5 isolation mode but not in (default) IIS 6 mode

  - by Tex

  The app uses DLLImport to call a legacy unmanaged dll. Let's call this dll Unmanaged.dll for the sake of this question. Unmanaged.dll has dependencies on 5 other legacy dll's. All of the legacy dll's are placed in the WebApp/bin/ directory of my ASP.NET application. When IIS is running in 5.0 isolation mode, the app works fine - calls to the legacy dll are processed without error. When IIS is running in the default 6.0 mode, the app is able to initiate the Unmanaged.dll (InitMe()), but dies during a later call to it (ProcessString()). I'm pulling my hair out here. I've moved the unmanaged dll's to various locations, tried all kinds of security settings and searched long and hard for a solution. Help! Sample code: [DllImport("Unmanaged.dll", EntryPoint="initME", CharSet=System.Runtime.InteropServices.CharSet.Ansi, CallingConvention=CallingConvention.Cdecl)] internal static extern int InitME(); //Calls to InitMe work fine - Unmanaged.dll initiates and writes some entries in a dedicated log file [DllImport("Unmanaged.dll", EntryPoint="processString", CharSet=System.Runtime.InteropServices.CharSet.Ansi, CallingConvention=CallingConvention.Cdecl)] internal static extern int ProcessString(string inStream, int inLen, StringBuilder outStream, ref int outLen, int maxLen); //Calls to ProcessString cause the app to crash, without leaving much of a trace that I can find so far

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• C# Interop with dll

  - by Jim Jones

  Using VS2008 C# am attempting to interop a C++ dll. Have a C++ class constructor: make_summarizer(const char* rdir, const char* lic, const char* key); Need to retain a reference to the object that is created so I can use it in a follow-on function. When I did this in JNI the c code was: declare a static pointer to the object: static summarizer* summrzr; Then in one of the functions I called this constructor as follows: summrzr = make_summarizer(crdir, clic, ckey); Where the parameters all where the requisite const char* type; So in C# using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Runtime.InteropServices; using System.Configuration; namespace SummarizerApp { class SummApp { private IntPtr summarzr; public SummApp() { string resource_dir = ConfigurationManager.AppSettings["resource_dir"]; string license = ConfigurationManager.AppSettings["license"]; string key = ConfigurationManager.AppSettings["key"]; createSummarizer(resource_dir, license, key); } [System.Runtime.InteropServices.DllImportAttribute("lib\\summarizer37.dll", EntryPoint = "#1")] public static extern IntPtr make_summarizer( [InAttribute()][MarshalAsAttribute(UnmanagedType.LPTStr)] string rdir, [InAttribute()][MarshalAsAttribute(UnmanagedType.LPTStr)] string lic, [InAttribute()][MarshalAsAttribute(UnmanagedType.LPTStr)] string key); public void createSummarizer(string resource_dir, string license, string key) { try { this.summarzr = make_summarizer(resource_dir, license, key); } catch (AccessViolationException e) { Console.WriteLine(e.Message); Console.WriteLine(e.StackTrace); } } Have also tried using IntPtr created using Marshal.StringToHGlobalAnsi(string). Regardless I get a AccessViolationException on the line where I call the native constructor; So what am I doing wrong? Jim

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• Notification CeSetUserNotificationEx with custom sound

  - by inTagger

  Hail all! I want to display notification and play custom sound on my Windows Mobile 5/6 device. I have tried something like that, but my custom sound does not play, though message is displayed with standart sound. If i edit Wave key in [HKEY_CURRENT_USER\ControlPanel\Notifications{15F11F90-8A5F-454c-89FC-BA9B7AAB0CAD}] to sound file i need then it plays okay. But why there are flag NotificationAction.Sound and property UserNotification.Sound? It doesn't work. Also Vibration and Led don't work, if i use such flags. (You can obtain full project sources from http://dl.dropbox.com/u/1758206/Code/Thunder.zip) var trigger = new UserNotificationTrigger { StartTime = DateTime.Now + TimeSpan.FromSeconds(1), Type = NotificationType.ClassicTime }; var userNotification = new UserNotification { Sound = @"\Windows\Alarm1.wma", Text = "Hail from Penza, Russia!", Action = NotificationAction.Dialog | NotificationAction.Sound, Title = string.Empty, MaxSound = 16384 }; NotificationTools.SetUserNotification(0, trigger, userNotification); UserNotificationTrigger.cs: using System; using System.Runtime.InteropServices; namespace Thunder.Lib.ThunderMethod1 { /// <summary> /// Specifies the type of notification. /// </summary> public enum NotificationType { /// <summary> /// Equivalent to using the SetUserNotification function. /// The standard command line is supplied. /// </summary> ClassicTime = 4, /// <summary> /// System event notification. /// </summary> Event = 1, /// <summary> /// Time-based notification that is active for the time period between StartTime and EndTime. /// </summary> Period = 3, /// <summary> /// Time-based notification. /// </summary> Time = 2 } /// <summary> /// System Event Flags /// </summary> public enum NotificationEvent { None, TimeChange, SyncEnd, OnACPower, OffACPower, NetConnect, NetDisconnect, DeviceChange, IRDiscovered, RS232Detected, RestoreEnd, Wakeup, TimeZoneChange, MachineNameChange, RndisFNDetected, InternetProxyChange } /// <summary> /// Defines what event activates a notification. /// </summary> [StructLayout(LayoutKind.Sequential)] public class UserNotificationTrigger { internal int dwSize = 52; private int dwType; private int dwEvent; [MarshalAs(UnmanagedType.LPWStr)] private string lpszApplication = string.Empty; [MarshalAs(UnmanagedType.LPWStr)] private string lpszArguments; internal SYSTEMTIME stStartTime; internal SYSTEMTIME stEndTime; /// <summary> /// Specifies the type of notification. /// </summary> public NotificationType Type { get { return (NotificationType) dwType; } set { dwType = (int) value; } } /// <summary> /// Specifies the type of event should Type = Event. /// </summary> public NotificationEvent Event { get { return (NotificationEvent) dwEvent; } set { dwEvent = (int) value; } } /// <summary> /// Name of the application to execute. /// </summary> public string Application { get { return lpszApplication; } set { lpszApplication = value; } } /// <summary> /// Command line (without the application name). /// </summary> public string Arguments { get { return lpszArguments; } set { lpszArguments = value; } } /// <summary> /// Specifies the beginning of the notification period. /// </summary> public DateTime StartTime { get { return stStartTime.ToDateTime(); } set { stStartTime = SYSTEMTIME.FromDateTime(value); } } /// <summary> /// Specifies the end of the notification period. /// </summary> public DateTime EndTime { get { return stEndTime.ToDateTime(); } set { stEndTime = SYSTEMTIME.FromDateTime(value); } } } } UserNotification.cs: using System.Runtime.InteropServices; namespace Thunder.Lib.ThunderMethod1 { /// <summary> /// Contains information used for a user notification. /// </summary> [StructLayout(LayoutKind.Sequential)] public class UserNotification { private int ActionFlags; [MarshalAs(UnmanagedType.LPWStr)] private string pwszDialogTitle; [MarshalAs(UnmanagedType.LPWStr)] private string pwszDialogText; [MarshalAs(UnmanagedType.LPWStr)] private string pwszSound; private int nMaxSound; private int dwReserved; /// <summary> /// Any combination of the <see cref="T:Thunder.Lib.NotificationAction" /> members. /// </summary> /// <value>Flags which specifies the action(s) to be taken when the notification is triggered.</value> /// <remarks>Flags not valid on a given hardware platform will be ignored.</remarks> public NotificationAction Action { get { return (NotificationAction) ActionFlags; } set { ActionFlags = (int) value; } } /// <summary> /// Required if NotificationAction.Dialog is set, ignored otherwise /// </summary> public string Title { get { return pwszDialogTitle; } set { pwszDialogTitle = value; } } /// <summary> /// Required if NotificationAction.Dialog is set, ignored otherwise. /// </summary> public string Text { get { return pwszDialogText; } set { pwszDialogText = value; } } /// <summary> /// Sound string as supplied to PlaySound. /// </summary> public string Sound { get { return pwszSound; } set { pwszSound = value; } } public int MaxSound { get { return nMaxSound; } set { nMaxSound = value; } } } } NativeMethods.cs: using System; using System.Runtime.InteropServices; namespace Thunder.Lib.ThunderMethod1 { [StructLayout(LayoutKind.Sequential)] public struct SYSTEMTIME { public short wYear; public short wMonth; public short wDayOfWeek; public short wDay; public short wHour; public short wMinute; public short wSecond; public short wMillisecond; public static SYSTEMTIME FromDateTime(DateTime dt) { return new SYSTEMTIME { wYear = (short) dt.Year, wMonth = (short) dt.Month, wDayOfWeek = (short) dt.DayOfWeek, wDay = (short) dt.Day, wHour = (short) dt.Hour, wMinute = (short) dt.Minute, wSecond = (short) dt.Second, wMillisecond = (short) dt.Millisecond }; } public DateTime ToDateTime() { if ((((wYear == 0) && (wMonth == 0)) && ((wDay == 0) && (wHour == 0))) && ((wMinute == 0) && (wSecond == 0))) return DateTime.MinValue; return new DateTime(wYear, wMonth, wDay, wHour, wMinute, wSecond, wMillisecond); } } /// <summary> /// Specifies the action to take when a notification event occurs. /// </summary> [Flags] public enum NotificationAction { /// <summary> /// Displays the user notification dialog box. /// </summary> Dialog = 4, /// <summary> /// Flashes the LED. /// </summary> Led = 1, /// <summary> /// Dialog box z-order flag. /// Set if the notification dialog box should come up behind the password. /// </summary> Private = 32, /// <summary> /// Repeats the sound for 10–15 seconds. /// </summary> Repeat = 16, /// <summary> /// Plays the sound specified. /// </summary> Sound = 8, /// <summary> /// Vibrates the device. /// </summary> Vibrate = 2 } internal class NativeMethods { [DllImport("coredll.dll", CallingConvention = CallingConvention.Winapi, CharSet = CharSet.Unicode, SetLastError = true)] internal static extern int CeSetUserNotificationEx(int hNotification, UserNotificationTrigger lpTrigger, UserNotification lpUserNotification); } } NotificationTools.cs: using System.ComponentModel; using System.Runtime.InteropServices; namespace Thunder.Lib.ThunderMethod1 { public static class NotificationTools { /// <summary> /// This function modifies an existing user notification. /// </summary> /// <param name="handle">Handle of the Notification to be modified</param> /// <param name="trigger">A UserNotificationTrigger that defines what event activates a notification.</param> /// <param name="notification">A UserNotification that defines how the system should respond when a notification occurs.</param> /// <returns>Handle to the notification event if successful.</returns> public static int SetUserNotification(int handle, UserNotificationTrigger trigger, UserNotification notification) { int num = NativeMethods.CeSetUserNotificationEx(handle, trigger, notification); if (num == 0) throw new Win32Exception(Marshal.GetLastWin32Error(), "Error setting UserNotification"); return num; } } }

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• VB.net Saving an MetaFile / EMF as a bitmap ( .tiff)

  - by pehaada

  Currently I have a third party control that generates a Metafile. I can save the .wmf file to disk with out issue. The problem is how do I render the Metafile as a Tiff file. Currently I have the following code to get my metafile and save it. Dim mf As Metafile = page.GetImage(TXTextControl.Page.PageContent.All) Dim enhMetafileHandle As IntPtr = mf.GetHenhmetafile() Dim h As IntPtr Dim bufferSize As UInteger = GetEnhMetaFileBits(enhMetafileHandle, 0, h) Dim buffer(CInt(bufferSize)) As Byte GetEnhMetaFileBits(enhMetafileHandle, bufferSize, buffer) Dim msMetafileStream As New MemoryStream msMetafileStream.Write(buffer, 0, CInt(bufferSize)) Dim baMetafileData() As Byte baMetafileData = msMetafileStream.ToArray Dim g As Graphics = Graphics.FromImage(mf) mf.Dispose() File.WriteAllBytes("c:\a.wmf", baMetafileData) end sub _ Public Shared Function GetEnhMetaFileBits( ByVal hEMF As System.IntPtr, ByVal nSize As UInteger, ByVal lpData As IntPtr) As UInteger End Function <System.Runtime.InteropServices.DllImportAttribute("gdi32.dll", EntryPoint:="GetEnhMetaFileBits")> _ Public Shared Function GetEnhMetaFileBits(<System.Runtime.InteropServices.InAttribute()> ByVal hEMF As System.IntPtr, ByVal nSize As UInteger, ByVal lpData() As Byte) As UInteger End Function I've tried all sort of IMAGE and Graphic calls and just can't save the meta file as a .tiff. Any suggestions would be great. I even tried to create a new bitmap and draw the metafile onto it. I always end up with a GDI exception being thrown.

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• Does DefaultAppPool run with special elevated privilegs on IIS?

  - by Leeks and Leaks

  I'm running a piece of code within a web page that queries the IIS metabase using ADSI. The code is as simple as this: DirectoryEntry iisNode = new DirectoryEntry("/LM/W3SVC/1/ROOT/MyAspWebsite-1-128886021498831845"); foreach (DirectoryEntry de in iisNode.Parent.Children) { System.Console.WriteLine(de.Name); } This works fine when I run the page/site under the DefaultAppPool on IIS7/W2K8. However when I create my own app pool and leave the properties the same as the default app pool, this code fails with the following error: Caught: System.Runtime.InteropServices.COMException Failed to parse virtual directory: /LM/W3SVC/1/ROOT/MyAspWebsite-1-128889542757187500 System.Runtime.InteropServices.COMException (0x80070005): Access is denied. What special privileges does the DefaultAppPool have? I don't see any documented. I need this to work in non default app pools, but without giving the entire worker process elevated privileges. I've also tried using the username and password parameters of the DirectoryEntry constructor, by using the Admin on the machine that IIS7 is running on, but that didn't change anything. I'll also note that this works fine on IIS6 and W2K3. Any help is appreciated.

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• "A generic error occurred in GDI+" error while showing uploaded images

  - by Prasad

  i am using the following code to show the image that has been saved in my database from my asp.net mvc(C#) application:. public ActionResult GetSiteHeaderLogo() { SiteHeader _siteHeader = new SiteHeader(); Image imgImage = null; long userId = Utility.GetUserIdFromSession(); if (userId > 0) { _siteHeader = this.siteBLL.GetSiteHeaderLogo(userId); if (_siteHeader.Logo != null && _siteHeader.Logo.Length > 0) { byte[] _imageBytes = _siteHeader.Logo; if (_imageBytes != null) { using (System.IO.MemoryStream imageStream = new System.IO.MemoryStream(_imageBytes)) { imgImage = Image.FromStream(imageStream); } } string sFileExtension = _siteHeader.FileName.Substring(_siteHeader.FileName.IndexOf('.') + 1, _siteHeader.FileName.Length - (_siteHeader.FileName.IndexOf('.') + 1)); Response.ContentType = Utility.GetContentTypeByExtension(sFileExtension.ToLower()); Response.Cache.SetCacheability(HttpCacheability.NoCache); Response.BufferOutput = false; if (imgImage != null) { ImageFormat _imageFormat = Utility.GetImageFormat(sFileExtension.ToLower()); imgImage.Save(Response.OutputStream, _imageFormat); imgImage.Dispose(); } } } return new EmptyResult(); } It works fine when i upload original image. But when i upload any downloaded images, it throws the following error: System.Runtime.InteropServices.ExternalException: A generic error occurred in GDI+. System.Runtime.InteropServices.ExternalException: A generic error occurred in GDI+. at System.Drawing.Image.Save(Stream stream, ImageCodecInfo encoder, EncoderParameters encoderParams) at System.Drawing.Image.Save(Stream stream, ImageFormat format) For. Ex: When i upload the original image, it shows as logo in my site and i downloaded that logo from the site and when i re-upload the same downloaded image, it throws the above error. It seems very weird to me and not able to find why its happening. Any ideas on this?

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• Remote IIS Administration - "Not enough storage available to process this command"

  - by Hainesy

  I'm trying to do Remote Administration of IIS in C#.NET using System.Web.Administration tools. Everything works fine on a test server (windows 2008), however when I try using our live server (windows 2003) it fails giving the message: System.Runtime.InteropServices.COMException : Not enough storage is available to process this command. (Exception from HRESULT: 0x80070008) The server itself has plenty of memory free, so I believe this is some kind of memory limit with the RPC itself. http://support.microsoft.com/kb/890425 Is there any way around this?

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• Bitmap to Texture2D problem with colors

  - by xnaNewbie89

  I have a small problem with converting a bitmap to a Texture2D. The resulted image of the conversion has the red channel switched with the blue channel :/ I don't know why, because the pixel formats are the same. If someone can help me I will be very happy :) System.Drawing.Image image = System.Drawing.Bitmap.FromFile(ImageFileLoader.filename); System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(image); Texture2D mapTexture = new Texture2D(Screen.Game.GraphicsDevice, bitmap.Width, bitmap.Height,false,SurfaceFormat.Color); System.Drawing.Imaging.BitmapData data = bitmap.LockBits(new System.Drawing.Rectangle( 0, 0, bitmap.Width, bitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly,System.Drawing.Imaging.PixelFormat.Format32bppArgb); byte[] bytes = new byte[data.Height * data.Width*4]; System.Runtime.InteropServices.Marshal.Copy(data.Scan0, bytes, 0, bytes.Length); mapTexture.SetData<byte>(bytes, 0, data.Height * data.Width * 4); bitmap.UnlockBits(data); bitmap.Dispose(); image.Dispose();

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• How to get MAC address from c# [migrated]

  - by Andrew Simpson

  I have a C# application. In a routine I have code to get the MAC address from using SendARP. It works on Windows 7 but does not work on Windows XP. I just get a null string returned. This is my code. Thanks... System.Runtime.InteropServices.DllImport("iphlpapi.dll", ExactSpelling = true)] static extern int SendARP(int DestIP, int SrcIP, byte[] pMacAddr, ref int PhyAddrLen); public static PhysicalAddress GetMacAddress(IPAddress ipAddress) { const int MacAddressLength = 6; //i know it is has a length of 6 int length = MacAddressLength; var macBytes = new byte[MacAddressLength]; SendARP(BitConverter.ToInt32(ipAddress.GetAddressBytes(), 0), 0, macBytes, ref length); return new PhysicalAddress(macBytes); }

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