I am using VB.NET 2010 and accessing a DLL that was created in VB6.I added the DLL in the References, and in the program I do the following:
Dim
RTF As
myDLL.clsRTF
[code]....
I have a new problem with this same Form Printing project and I get exactly the same exception but from the different point of code:
line 538: d.PrintFunction(c, typePrint, mp, x, y, extendedHeight, ScanForChildControls)
The exception type is System.AccessViolationException and it says (after I translate it from my own language in which the message is given in my pc, into English):"Protected memory was tried to be read or written. This often indicates that the other memory is damaged"
Im getting a problem with one of my programs I have made in visual basic.NET where it gives me a memory error when i debug the program in the IDE. the exact error is this: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt". My program basically has a few forms with text fields on that get their text values from an access database on the same hard drive. Im wondering if im doing something wrong because my program just seems to eat up memory whenever it does anything. For example I have one form that has a combobox on it and when you change the drop down list selection it retreives a few strings from the database and puts them into the relevant text boxes, if you keep changing the selection then the memory usage (in task manager) just keeps going up and up. occasionally I get the error mentioned above when debugging but in my built version of the program it throws an exception everytime the memory usage gets past 49K.
Also I noticed when debugging in the "immediate window" frame I get the following message often:A first chance exception of type 'System. Invalid OperationException' occurred in System.Data.dll...Do I need to somehow be "releasing" the memory that is used to gather data once it becomes redundant?
I am using the following code
This error occurs :
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Public Class FormRegEnumValue
[CODE]......................
QuoteSystem.AccessViolationException was unhandled Message="Attempted to read or write protected memory. This is often an indication that other memory is corrupt." Source="System.Windows.Forms"
Im designing a web browser and i continue to receive this error after going to about 3 websites it crashes with that error.
I cannot use Visual Basic 2008 at all. When I go to "new project" and choose "Windows Form Application" I get this error.I have tried multiple uninstall/reinstall with no result.A microsoft reply to this suggested that I needed: " .NET Framework 2.0 Service Pack 1 " I checked, and I did not have the .netframework 2.0 service Pack 1.
When I tried to download and install the above from Microsoft.com, the istaller said that "it was not allowsed" and I was not able to install the service pack 1.
I tried Uninstalling net framework 3.5, 3.0, 2.0 and then reinstalling .netframework 2.0 sevice pack 1; then reinstalling Visual basic 2008 express edition. At the reinstall of Visual basic 2008, .netframework 2.0 sevice pack 1 is unistalled by .net framework service pack 2.When I check the foruims for simiar problems, the formus are mostly for Visual basic 5.0, or other programs that I do not have.
Here is the programs I have installed:
Operating system: Windows XP
Microsoft .net framework 1.1
Microsoft .NET framwork 1.1 Hotfix(KB928366)
Microsoft .Net Framework 2.0 Service Pack 2
[code]....
All the security updates and hotfixes for Widows XP.
I have two forms, Form1 and Form2. Form2 has a button to show OpenFileDialog. I call Form2 from Form1 by a button. My startUp Form is Form1. When i start debugging, i press my Form1's button to show my Form2, it shows, but when i click On Form2's Button to show OpenFileDialog it is giving me exception that
"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."
When i set my startup Form to Form2 and click Form2's Button to show OpenFileDialog then it shows!
The follow code can be called about 6K times on the server it is run on then gets a out of memory error in the last catch statement. I don't see what is wrong with the code, it works well up until the out of memory..
Public Function AddUserToGroup(ByVal sSamAccountName As String, ByVal sGroupName As String) As Boolean
Try
Dim returnStatus As Boolean = True[code]......
I am getting the following error: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt". i am using interop service.
View 2 RepliesI have a project that reference from leadtools 16.5, and after that, i want to run my project..i see am error like it " An error occurred creating the form. See Exception.InnerException for details. The error is: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. im using vb 2008 pro
View 6 RepliesI have several visual basic 2010 programs. One of the programs I have installed the program on four different windows 7 computers. I get the following error on one of the computers.Then another program I have installed it on 8 computers and I get the same error on 6 of the computers. Here is the error message I get:
2011-10-11 06:19:04 , Main, -2147467261, Attempted to read or write protected memory. This is often an indication that other memory is corrupt., at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
[code].....
I am working on an application that starts a few threads every second. The threads don't do much, and everything seemed fine. I monitor the number of threads running, and I have never seen it higher than 4.
Last night I started the app and this morning I had this.
System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
The threads can make changes to two List(of Strings) and I had SyncLock's surrounding the code that did that. It has been running for several hours again and all seems well.
My question is that I found a place in the UI thread that was copying the list without the lock. Could that have caused the error?
how to debug something that isn't going to fail conveniently?
When i run my projekt on my Pc , on my server then all works fine. Then i have try my project on another server, and get this error in almost. all my forms: Attempted to read or write protected memory, this is often an indication that other memory is corrupt. What to do?
View 6 Repliesi am trying to open and navigate to second web browser when i recieve this error; here are the details;
System.AccessViolationException was unhandled
Message="Attempted to read or write protected memory. This is often an indication that other memory is corrupt."
Source="System.Windows.Forms"
StackTrace:
[Code]...
I'm gettiing this error from my app: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." But it carries on for about 5 minutes then stops. The application log shows this:
[Code]...
This code was put together for a one time run. It's purpose is to count all the pages in a group of images. After about 6000 of 1,250,000 images in ##X it throws an "out of memory" error. Besides it being thrown together for a one time run does anybody see anything obvious that could be causing the error?
CODE:
I am getting Attempted to read or write protected memory. This is often an indication that other memory is corrupt.while I am calling EnumWindows. Opening my vb.net from through main module
'Globally declare
Declare Function EnumWindows Lib "user32" (ByVal x As CallBack, ByVal y As Integer) As Integer
Public Delegate Sub CallBack()
[Code]...
In VB 2005, I am calling a C++ DLL function that returns the address in memory and size in bytes of a jpeg image. How can I load that jpeg image directly from memory into a picture box in my VB form? I cannot afford to save it to disk first.
View 10 RepliesI have a BackgroundWorker object that I instantiated to perform a DB process on a background thread ansynchronously. I have event handlers for DoWork and RunWorkerCompleted. I can tell that the BackgroundWorker is disposing of itself because I added a message box into the Disposed event handler.Is it necessary to detach the event handlers to ensure that the memory is cleaned up and that there are not memory leaks?
View 1 RepliesI've noticed that every time I start a new thread in my program, the memory usage jumps about 1000k and it never goes back down. I have ensured that the thread is no longer running, and only one instance of my worker thread is ever running at a time. I am using ThreadPool.QueueUserWorkItem and ASyncOperation to get stuff done. The program starts using a Sub Main in a module that uses STAThread; I read that using STAThread instead of MTAThread makes it impossible for the Garbage Collector to get in and consider objects for garbage collection. However, when I change the STAThread to an MTAThread, the WebBrowser control in my frmMain cannot be instantiated.
I get this exception:
Code: An unhandled exception of type 'System.Threading.ThreadStateException' occurred in System.Windows.Forms.dll
Additional information: ActiveX control '8856f961-340a-11d0-a96b-00c04fd705a2' cannot be instantiated because the current thread is not in a single-threaded apartment. I do threading with the WebBrowser control, so will using MTAThread fix my problem? If so, how should I partition my code so that the WebBrowser control won't be affected by the above exception? I call the thread repeatedly with a timer (although only one instance ever runs at a time), and my program's memory usage starts at about 5000k and can jump to 300,000k+ depending on many times the thread needs to be called.
I try to understand how to use a fortran function (which is in a dll) from VB. Actually I want to use vb as interface. I the VB 2008 express form I have 2 textbox and a button. I enter a number in the top textbox and once the button is pushed, this number should be multiplied by 23 and should appear in the bottom textbox... here is my VB code:
[Code]....
i want to be able to fill in a form using an XML file from the user.how can i have them upload the XML file to read, without actually saving it to the server? is it possible?
View 2 RepliesI have the code below that reads 7 chars from the address "00ea54e8" that belong to another process. This one works perfectly.
My problem is that I need another subroutine to read a 4 byte integger from the address "01640850". Since this code is made by peaces I found on the Internet I just can't figure out how to make it work.
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Int32, ByVal bInheritHandle As Int32, ByVal dwProcessId As Int32) As Int32
Private Declare Function ReadProcessMemory Lib "kernel32" Alias
[Code]....
how to read memory with VB. I want to start with Basic Mind Sweeper game. In mind sweeper if you set default greed/field (9 by 9) you can find all mines location of in memory from Address 01005360 to 01005468. Hex dumb 8F represents a mine. write a program in VB.Net 2008 that will display Hex Dumb of address 01005360 and 01005368 for mind Sweepers . So Basicly I need put all hex dumbs in string from hex dumb "10" in adress 01005360 to the next hex dumb "10"
View 5 RepliesI'm trying to read another process's memory starting from mbi.BaseAddress to mbi.RegionSize using the function ReadProcessMemory, however I only succedeed to read 1 address at a time and it takes like forever to finish, the result being stored into a byte() variable, calling the readaddressmemory 1 million times instead of only 1 for example.
[Code]...
I have created an event DGVddlSubCategoryComboIndexChanged.as soon as the control come out of this event an error througn
Error:Attempted to read or write protected memory. This is often an indication that other memory is corrupted
Read/Write Process Memory?
View 6 Replieshow to write to memory some data and then read it back?
If i have 1GB free of memory i would like to write 100MB to memory some data and then read it back, i searched net for some documentations but cant find nothing, only writing to other process and some stupidities!
i have tryed so many times now so is there some one that can Read/ Process Memory in vb.net 08 ?
this is what i got
Dim help2 As Integer
Dim HP_Have As Integer = &H574
Label5.Text = ReadProcessMemory(proc.Handle.ToInt32(), HP_Have, help2, 4, 4)
I am trying to make a dps meter for a game, and basically would like to know how to read the memory fields (NOT WRITE).This can be done in VB(Preffered), but I am also semi useful with C# so it can be done in that as well.
View 1 Replies
