Error Creating Window Handle Crystal Reports
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 the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 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 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 '11 at 4:02 Yi Jiang 35.6k11105121 asked Oct 21 '08 at 17:01 leora 17.6k2286321114 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... –Gerardo Contijoch May 14 '15 at 18:24 add a comment| Did you find this question interesting? Try
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 the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million 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 application - not CAB, but a similar home grown framework. We're running http://stackoverflow.com/questions/222649/winforms-issue-error-creating-window-handle 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 and rendering of content based on metadata in our database. There's a lot of info on Google http://stackoverflow.com/questions/88904/error-creating-window-handle 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 force the control to be realized) use a tool like the .Net Memory profiler to get counts of the classes that are created. Newer versions of this tool will also track GDI and USER objec
SQL Server 2014 Express resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft Student Partners ISV Startups TechRewards Events Community Magazine Forums Blogs Channel 9 Documentation APIs and reference Dev centers Retired content Samples We’re sorry. https://social.msdn.microsoft.com/Forums/en-US/f1242a80-8768-4ee1-93a7-52d352f284b3/window-handle-error?forum=vbgeneral The content you requested has been removed. You’ll be auto redirected in 1 second. Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Answered by: Window http://crystal622.rssing.com/chan-5903591/all_p100.html Handle Error Visual Studio Languages , .NET Framework > Visual Basic Question 0 Sign in to vote Dear all, I am facing serious issue regarding window handle. we have developed the application for sending error creating mails for our client which has about 4000 employees. so minimize the load on the form, we have used the background worker which handles the sending of mails. If we run the Same application in windows XP, the application works fine. but on windows7 32 Bit, after some time our application throws the exception of "Error Creating Window Handle." We have not used many controls may its 10 controls including error creating window tabs, Listview, button. I am not getting any clue regarding this. Please Help Me.Sandeep J. Sharma Saturday, March 24, 2012 5:43 AM Reply | Quote Answers 0 Sign in to vote Hi Sandeep, Thanks for your post. According to your description, it seems that no large count of control in your application. But I will also suggest you to check the GDI object usage in task manager (you have to addthe GDI object column). If the number is using 15000 GDI object, I’m afraid that you have some issue about creating GDI objects (such as controls). Here is an article talking about The "Error creating window handle" exception and the Desktop Heap and also provide some solution, this can help you: http://weblogs.asp.net/fmarguerie/archive/2009/08/07/cannot-create-window-handle-desktop-heap.aspx If this does not help you, I’m afraid you need to provide the detail information about the exception or some code.Mark Liu-lxf [MSFT] MSDN Community Support | Feedback to us Marked as answer by Bob_BaoMVP, Moderator Tuesday, April 03, 2012 6:46 AM Monday, March 26, 2012 3:26 AM Reply | Quote Moderator 0 Sign in to vote Dear Mark Liu-lxf I have find the root cause of error i am facing "Window Handle". what i have done is on click of button i have hided
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