Error Creating Window Handle Vb.net 2005
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An Error Occurred While Executing Batch Error Message Is Error Creating Window Handle
programmers, just like you, helping each other. Join them; it only takes a minute: Sign up “Error Creating Window Handle” up vote 16 down vote favorite 3 We're working on a very large .NET WinForms composite
Error Creating Window Handle Sql
application - not CAB, but a similar home grown framework. We're running in a Citrix and RDP environment running on Windows Server 2003. We're starting to run into random and difficult to reproduct "Error creating window handle" error that seems to be an old fashion handle leak in our application. We're making heavy use of 3rd Party controls (Janus GridEX, Infralution VirtualTree, and .NET Magic docking) and we do a lot of dynamic loading error creating window handle bluestacks and rendering of content based on metadata in our database. There's a lot of info on Google about this error, but not a lot of solid guidance about how to avoid issues in this area. Does the stackoverflow community have any good guidance for me for building handle-friendly winforms apps? .net winforms handles share|improve this question edited Feb 27 '13 at 8:15 Kiquenet 5,0672486148 asked Sep 18 '08 at 0:26 user8133 141125 See also [this post of mine about "Error creating window handle"][1] and how it relates to USER Objects and the Desktop Heap. I provide some solutions. [1]: weblogs.asp.net/fmarguerie/archive/2009/08/07/… –Fabrice Aug 8 '09 at 0:41 add a comment| 5 Answers 5 active oldest votes up vote 21 down vote I have tracked down a lot of issues with UIs not unloading as expected in WinForms. Here are some general hints: alot of the time, a control will stay in use because controls events are not properly removed (the tooltip provider caused us really large issues here) or the controls are not properly Disposed. use 'using' blocks around all modal dialogs to ensure that they are Disposed there are some control properties that will force the creation of the window handle before it is necessary (for example setting the ReadOnly property of a TextBox control will
on for a client is used actively, users often get "Error creating window handle" exceptions. Aside from the fact that the application consumes too much resources, which is a separate issue altogether that we are already addressing, we
Error Creating Window Handle C# Solution
had difficulties with determining what resources were getting exhausted as well as what the limits system componentmodel win32exception error creating window handle are for these resources.We first thought about keeping an eye on the Handles counter in the Windows Task Manager. That was because error creating window handle reportviewer we noticed that some processes tended to consume more of these resources than they normally should. However, this counter is not the good one because it keeps track of resources such as files, sockets, processes and threads. http://stackoverflow.com/questions/88904/error-creating-window-handle These resources are named Kernel Objects. The other kinds of resources that we should keep an eye on are the GDI Objects and the User Objects. You can get an overview of the three categories of resources on MSDN. User Objects Window creation issues are directly related to User Objects. We tried to determine what the limit is in terms of User Objects an application can use.There is a quota of 10,000 user handles per http://weblogs.asp.net/fmarguerie/cannot-create-window-handle-desktop-heap process. This value can be changed in the registry, however this limit was not the real show-stopper in our case. The other limit is 66,536 user handles per Windows session. This limit is theoretical. In practice, you'll notice that it can't be reached. In our case, we were getting the dreaded "Error creating window handle" exception before the total number of User Objects in the current session reached 11,000. Desktop Heap We then discovered which limit was the real culprit: it was the "Desktop Heap".By default, all the graphical applications of an interactive user session execute in what is named a "desktop". The resources allocated to such a desktop are limited (but configurable). Note: User Objects are what consumes most of the Desktop Heap's memory space. This includes windows. For more information about the Desktop Heap, you can refer to the very good articles published on the NTDebugging MSDN blog: Desktop Heap Overview Desktop Heap, part 2 Desktop Heap Monitor (dheapmon.exe) It's possible to monitor the Desktop Heap usage thanks to a command line tool: Desktop Heap Monitor (dheapmon.exe). It would be interesting to monitor this usage directly from within applications to prevent crashes. We could let users know that all the resources are about to be exhausted, and ask them to close windows and prevent them from opening new screens. This wo
+ Ask a Question Need help? Post your question and get tips & solutions from a community of 418,509 IT Pros & Developers. It's quick & easy. How to locate and fix the error "Error Creating Windows Handle" P: n/a Vidit https://bytes.com/topic/visual-basic-net/answers/347765-how-locate-fix-error-error-creating-windows-handle Hi I keep getting the error "Error Creating Windows Handle" in my application and different places in the code. This occurs only to certain users. Its very random and cannot be reproduced in the development environment. I have an applicatin error logger which shows this error occuring (in the stack trace dump) but it again occurs at different locations in the code and occurs inconsistently. My application is a windows forms application, with multiple instances of same MDI form created and error creating then run simultaneously. If anyone knows why it occurs or what can be done to prevent it, please advice. Thanks Vidit Nov 20 '05 #1 Post Reply Share this Question 3 Replies P: n/a One Handed Man Are all the users pc specifications the same ?,, Does a pattern exist, ie small amount of memory = expect more failures ? or operating systems or Other software installed ? ask youself lots of questions. This sounds like one of those really horrible ones. error creating window However, the information will be there, you just need to become a private detective, gather it, collate and sift it, maybe then we can pinpoint it a little better. ;-D -- Regards - One Handed Man Author : Fish .NET & Keep .NET ========================================= This posting is provided "AS IS" with no warranties, and confers no rights. "Vidit"