Automation Error Invalid Pointer Com Vba
Contents |
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. The content vba automation error the interface is unknown you requested has been removed. You’ll be auto redirected in 1 second. Ask a vba automation error the object has disconnected from its client question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Answered by: Invlaid Pointer Error Archived vba automation error the object invoked has disconnected from its clients Forums V > Visual Basic Interop and Upgrade Question 0 Sign in to vote Hi I wondered if you have come across the following problem: I have created a hybrid app with .Net froms. When vba automation error exception occurred calling the form from the VB6 code, it works fine, but often it gives the following error: Error Number: -2147467261 Error Message: AUTOMATION ERRORINVALID POINTER When you close down the app and open again, it is fine. Any advice? T Sunday, February 17, 2008 5:54 AM Answers 0 Sign in to vote T-Prorammer, Based on your post, the error message "Automation Error Invalid Pointer" is too common to see the mistake
Vba Automation Error Catastrophic Failure
in your interop application. I would like to provide you the suggestions as follows: 1. In order to make your question more clear and get further help on this kind of problem, please provide the code snippet especially the Interop part that you consider the most posibility to cause the problem: 2. The thread .NET interoperability -- Handling Managed events in Unmanaged code provides you a good example on trouble shooting this issue by Yi Zhang: Events are subscribed after the object ( in this case, Button ) are created. So when you are calling CauseClickEvent(x,y) inside the constructor of Button, the event Click is not subscribed yet, which have caused your problem. To fix it, simply remove CauseClickEvent from the constructor of Button. To see that your event handler in VB 6 is actually called. 3. In my opinion, the article .NET Interop: Get Ready for Microsoft .NET by Using Wrappers to Interact with COM-based Applications mentioned in the thread is helpful for your to understand the interop issue between managed and unmanaged parts. 4. Another example on debug Visual Basic .NET applications and the Visual Basic 6.0 components that they use, and how to debug Visual Basic .NET components called from Visual Basic 6.0 applications.: Debugging Hybrid Visual
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
Vba Automation Error Unspecified Error
Stack Overflow the company Business Learn more about hiring developers or posting ads with vba automation error system call failed us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is vba automation error library not registered a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up VB6 Automation Error on Calls to .NET 3.5 Assemblies After the First Calls https://social.msdn.microsoft.com/Forums/en-US/2f14ef4d-fcb4-481e-90b7-84e0d25974a8/invlaid-pointer-error?forum=vbinterop up vote 0 down vote favorite Some of the sources I've checked already: http://www.experts-exchange.com/Programming/Languages/.NET/Visual%5FBasic.NET/Q%5F23359339.html http://mygreenpaste.blogspot.com/2006/03/net-framework-20-configuration-tool.html http://support.microsoft.com/kb/186063 I'm busy developing .NET modules that will hook into our existing VB6 code. I've created a test VB6 project from which to launch the new code which comprises of a form with a button, and on the button's click event is Dim launcher As New VB6InteropLaunchPad.launcher launcher.FormTypeEnum = FormTypeEnum_MySpecificForm launcher.launchAppropriateForm It is successful the http://stackoverflow.com/questions/1487406/vb6-automation-error-on-calls-to-net-3-5-assemblies-after-the-first-calls first time I click the button. However, if I click the button again, I get the following error: Run-time error '-2146233079 (80131509)': Automation Error Subsequent calls to the .NET code fail with the same error message unless I close and restart the IDE. If I compile the VB6 project to an EXE the same thing happens. I have to close the EXE and run it again to be able to access the .NET code. I've tried the suggestion on http://support.microsoft.com/kb/186063 and did the following: Option Explicit ' http://support.microsoft.com/kb/186063 Const FORMAT_MESSAGE_FROM_SYSTEM = &H1000 Private Declare Function FormatMessage Lib "kernel32" Alias _ "FormatMessageA" (ByVal dwFlags As Long, lpSource As Long, _ ByVal dwMessageId As Long, ByVal dwLanguageId As Long, _ ByVal lpBuffer As String, ByVal nSize As Long, Arguments As Any) _ As Long Private Function MessageText(lCode As Long) As String Dim sRtrnCode As String Dim lRet As Long sRtrnCode = Space$(256) lRet = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, 0&, lCode, 0&, _ sRtrnCode, 256&, 0&) If lRet > 0 Then MessageText = Left(sRtrnCode, lRet) Else MessageText = "Error not found." End If End Function On Error GoTo errHandler Dim launcher As New VB6InteropLaunchPad.launcher launcher.FormTypeEnum = FormTypeEnum_MySpecificForm launcher.launchAppropriateForm Exit Sub errHandler: MsgBox MessageText(Err.Number) MsgBox Err but the error was not found. Any ideas on
Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways https://www.experts-exchange.com/questions/27224956/Calling-a-VB-Net-call-from-a-VB6-program.html to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts http://www.dreamincode.net/forums/topic/316063-automation-error-activex-exe/ Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > Calling a VB.Net call from a VB6 program Want to Advertise Here? Solved Calling a VB.Net call from a VB6 program Posted on 2011-07-27 MS Development-Other .NET Programming Visual Basic.NET 1 Verified Solution 1 Comment 1,052 Views Last Modified: 2012-05-11 automation error Hello all, I built a VB.Net (2010) class with the idea that it should be callable from a VB6 program. I used as reference the instructions here: http://support.microsoft.com/kb/817248 and here http://www.codeproject.com/KB/vb/MusaExposingCOM.aspx in building the class. I added the tlb file to the VB6 references and all the class members as visible to the VB6 Object Browser. All good news so far. The VB6 program instantiates the class this vba automation error way: Dim myclass As New ComHL7ClassLibrary1.ComHL7FileClass Select all Open in new window However when I try to set the first property: myclass.HL7Filename = "C:\Users\myfile.txt” Select all Open in new window I get a runtime error: Runtime error: -2147467261(80004003) Automation error Invalid pointer The property code is pretty standard: Public Property HL7Filename As String Get Return pFilename End Get Set(ByVal value As String) If File.Exists(value) Then pFilename = value End If End Set End Property Select all Open in new window I tried instantiating the class with a CreateObject call. That didn’t work either. Any ideas? Thanks In advance. 0 Question by:DevLSS Facebook Twitter LinkedIn Google Best Solution byDevLSS Resolved. The Constructor for Com compatible class must be empty: Public Sub New() MyBase.New() End Sub I moved the code ffrom the constructor to the Open method and that resolved the Go to Solution 1 Comment Message Accepted Solution by:DevLSS2011-07-27 Resolved. The Constructor for Com compatible class must be empty: Public Sub New() MyBase.New() End Sub I moved the code ffrom the constructor to the Open method and that resolved the problem. 0 Write Comment First Name Please
14 Replies - 4641 Views - Last Post: 29 March 2013 - 04:40 PM Rate Topic: #1 maj3091 D.I.C Lover Reputation: 327 Posts: 1,944 Joined: 26-March 09 Automation error - ActiveX EXE Posted 20 March 2013 - 05:07 AM Interesting issue cropped up at a customers site recently, whereby our server application is reporting Automation Errors and Components hanging. This app has been running for a good number of years, without issues, then this has happened twice in the last week or so. No changes have been made to the host computer or software during that time. When this error occurs, it requires the server app to be restarted as all connected devices can't function (Terminal Emulation on the devices). Basically, our server app handles incoming socket connections from mobile devices. Each connection has it's own "client session" in the form of an ActiveX EXE. We have a messagebox on screen also, saying "An action can't be completed, because component (Session X) is not responding. Click Switch to switch to activate the component to correct the problem." The automation errors are being raised in the SendToClient functions that send data to the client session (ActiveX EXE). I've done some googling and it's suggesting that because a message hasn't been processed in the message queue and re-entry, but following the associated code examples, our code already seems to follow these methods. So, in our server, we have the following: Private WithEvents objSession1 As ClientSession ' TCP Read Initiates the comms with the ActiveX EXE sub tcp_Read(intIndex as Integer) On Error GoTo ErrHandler Dim strData As String tcpServer(intIndex).RecvLen = intDataLength strData = tcpServer(intIndex).RecvData 'Send the data to the client exe 'subSendToClient intIndex, strData Select Case intIndex Case 1: subSendToClient1 strData Case 2: subSendToClient2 strData ..... Case X: subSendToClientX strData End Sub Private Sub subSendToClient1(strData As String) On Error GoTo ErrHandler Dim blnTryOnce As Boolean 'enable timeout timer blnSendTimeout(1) = False tmrSendTimeout1.Interval = cstSendTimeout tmrSendTimeout1.Enabled = True blnDoneRead(1) = False blnTryOnce = True 'Only send data once, but keep looping... 'loop until done or timed out Whil