Application Run Error Creating Window Handle
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow
Error Creating Window Handle C#
the company Business Learn more about hiring developers or posting ads with us Stack error creating window handle c# solution Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of error creating window handle sql 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Winforms issue - Error creating window handle [duplicate] up vote 38 down vote favorite 9 This question already
An Error Occurred While Executing Batch Error Message Is Error Creating Window Handle
has an answer here: “Error Creating Window Handle” 5 answers We are seeing this error in a Winform application. Can anyone help on why you would see this error, and more importantly how to fix it or avoid it from happening. System.ComponentModel.Win32Exception: Error creating window handle. at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp) at System.Windows.Forms.Control.CreateHandle() at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible) at System.Windows.Forms.Control.CreateControl() at System.Windows.Forms.Control.OnVisibleChanged(EventArgs e) at System.Windows.Forms.ButtonBase.OnVisibleChanged(EventArgs e) c# windows winforms window-handles share|improve this question edited Jan 30
Error Creating Window Handle Sql Server Management Studio
'11 at 4:02 Yi Jiang 35.6k11105121 asked Oct 21 '08 at 17:01 leora 17.6k2286301114 marked as duplicate by slugster, ecatmur, mattytommo, Anujith, ixe013 Feb 27 '13 at 14:54 This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question. add a comment| 10 Answers 10 active oldest votes up vote 36 down vote accepted Have you run Process Explorer or the Windows Task Manager to look at the GDI Objects, Handles, Threads and USER objects? If not, select those columns to be viewed (Task Manager choose View->Select Columns... Then run your app and take a look at those columns for that app and see if one of those is growing really large. It might be that you've got UI components that you think are cleaned up but haven't been Disposed. Here's a link about this that might be helpful. Good Luck! share|improve this answer answered Oct 21 '08 at 18:06 itsmatt 23.7k879142 I ran into this problem and found my app reported 9600+ USER Objects and 1800+ GDI Object. My problem is I'm not doing anything wrong, I'm just adding a lot of items to a FlowLayoutPanel. I guess I'm gonna have to 'page' the displayed data... &
Studio 2015 products Visual Studio Team Services Visual Studio Code Visual Studio Dev Essentials Office Office Word/Excel/PowerPoint Microsoft Graph Outlook OneDrive/Sharepoint Skype Services Store Cortana Bing Application Insights Languages & platforms Xamarin ASP.NET system.componentmodel.win32exception error creating window handle C++ TypeScript .NET - VB, C#, F# Server Windows Server SQL Server BizTalk
Vb.net Error Creating Window Handle
Server SharePoint Dynamics Programs & communities Students Startups Forums MSDN Subscriber downloads Sign in Search Microsoft Search Windows Dev winforms error creating window handle Center Windows Dev Center Explore What’s new for Windows 10 Intro to Universal Windows Platform Coding challenges Develop for accessibility Build for enterprise Windows Store opportunities Docs Windows apps Get started Design and http://stackoverflow.com/questions/222649/winforms-issue-error-creating-window-handle UI Develop API reference Publish Monetize Promote Games Get started UI design Develop Publish Desktop Get started Design Develop API reference Test and deploy Compatibility Windows IoT Microsoft Edge Windows Holographic Downloads Samples Support Why Windows Dashboard Explore What’s new for Windows 10 Intro to Universal Windows Platform Coding challenges Develop for accessibility Build for enterprise Windows Store opportunities Docs Windows apps Get started Design and https://social.msdn.microsoft.com/Forums/windows/en-US/f89c73ad-1931-48da-ac2d-0f84db894068/error-creating-window-handle-crashing-application?forum=winforms UI Develop API reference Publish Monetize Promote Games Get started UI design Develop Publish Desktop Get started Design Develop API reference Test and deploy Compatibility Windows IoT Microsoft Edge Windows Holographic Downloads Samples Support Why Windows Dashboard Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Answered by: Error creating window handle. Crashing Application Windows Forms > Windows Forms General Question 0 Sign in to vote Hello, I have a C#.NET application that has been in use since July and the one remaining bug is that it will lock up and shut down on the users. The exceptions are always somewhat different, but have one thing in common: "Error creating window handle." I just don't know where to start on this one because it is not reproducable, and there does not seem to be any trend in the source of the error. It seems to happen randomly in different classes all over the app. I can post sample exceptions if needed. Has anyone had this problem? Thanks Thursday, November 08, 2007 4:43 PM Reply | Quote Answers 0 Sign in to vote It's hard to tell from the ha
on for a client is used actively, users often get "Error creating window handle" exceptions. Aside from the fact that the application http://weblogs.asp.net/fmarguerie/cannot-create-window-handle-desktop-heap consumes too much resources, which is a separate issue altogether that we are already addressing, we had difficulties with determining what resources were getting exhausted as well as what http://challadotnetfaq.blogspot.com/2013/01/error-creating-window-handle-win32.html the limits are for these resources.We first thought about keeping an eye on the Handles counter in the Windows Task Manager. That was because we noticed that some processes error creating 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. 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 error creating window 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 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. Th
application When building controls dynamically which compose of sub-controls you can sometimes run into an problem where windows throws a "Error creating window handle" error. The following registry key shows how many ‘USER Objects' handles are available on the system per process, creating any more ‘USER Objects' window handles will generate a "Error creating window handle" error. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\USERProcessHandleQuota On my machine the value is 10000, and the following code creates the issue: [TestMethod] public void GenerateUserObjectsError() { UserControl ctrl = new UserControl(); ctrl.CreateControl(); for( int i = 0; i < 10001; i++ ) { ctrl.Controls.Add( new TextBox() ); } } You can use Task Manager to watch the number of ‘USER Objects' created for a process: The ‘USER Objects' column can be turned on via the View menu. Solution 1 Interestingly enough the "Error creating window handle" can be solved in this case by assigning the control to a Form before adding the sub-controls. [TestMethod] public void DoesNotFail() { UserControl ctrl = new UserControl(); ctrl.CreateControl(); Form frm = new Form(); frm.Controls.Add( ctrl ); for( int i = 0; i < 10001; i++ ) { ctrl.Controls.Add( new TextBox() ); } } After the control has been added to the Form, creating and adding sub-controls no longer consumes ‘USER Objects'. Solution 2 Clear the memory of Form/Panel Child controls using Control.Dispose() like below //clearing the objects(controls) memory of tableLayoutPanelTemplate controls and child controls TableLayoutControlCollection layoutCollection = tableLayoutPanelTemplate.Controls; for (int j = 0; j < layoutCollection.Count ; j++){ foreach (Control childControls in layoutCollection[j].Controls) { foreach (Control lowlevelControls in childControls.Controls) { childControls.Controls.Remove(lowlevelControls); lowlevelControls.Dispose(); } childControls.Controls.Remove(childControls); childControls.Dispose(); }layoutCollection[j].Dispose(); } // clear all itemstableLayoutPanelTemplate.Controls.Clear(); Posted by Srinivas Challa at 2:30 PM Reactions: Email ThisBlogThis!Share to TwitterShare to FacebookShare to Pinterest Labels: .Net, C#, Error creating window handle, GDI, Memory leak, Win32 Exception, windows application Post a Comment Newer Post Older Post Home Subscribe to: Post Comments (Atom) Popular Posts Integration with Bill Desk Payment Gateway in asp.net .Net Integration with Bill Desk Payment Gateway Introduction: Now-a-days